erstes Einreichen
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Andre Schmidt
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2013.02.19_attraktor.pdf
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2013.02.19_attraktor.pdf
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2013.02.19_attraktor.tex
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2013.02.19_attraktor.tex
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%\documentclass[aspectratio=43]{beamer}
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\documentclass[c]{beamer}
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\usetheme{intridea} %% Themenwahl
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\usepackage[ngerman]{babel}
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\usepackage[T1]{fontenc} % richtige Silbentrennung
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\usepackage[utf8]{inputenc} % Umlaute etc.!
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\usepackage{eurosym}
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\usepackage{tikz}
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\usetikzlibrary{arrows,decorations.pathmorphing,backgrounds,fit,positioning,shapes.symbols,chains}
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%1
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\title{Freifunk Hamburg}
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\author{hamburg.freifunk.net}
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\date{19. Februar 2013}
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%2
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\begin{document}
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\maketitle
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\begin{frame}{Was ist freifunk?}
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\begin{itemize}
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\item Initiative für freie, offene, kostenlose Funk- und Datennetzwerke
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\item freifunk steht jedem offen, als Nutzer oder Anbieter
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\item Als freifunk-Knoten (Zugangspunkt) dienen dafür vorbereitete WLAN-router
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\item In vielen Orten gibt es bereits Freifunknetze (Berlin, Wien, Augsburg, Lübeck, Kiel, Rheinland, Hamburg...)
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\end{itemize}
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\end{frame}
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%3
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\begin{frame}{Was ist freifunk?}
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\textbf{Frei} wird verstanden als
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\begin{itemize}
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\item Öffentlich - jedem zugänglich
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\item Nicht kommerziell
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\item Im Besitz der Gemeinschaft
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\item Netzneutral - keine Manipulation der Datenströme
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\end{itemize}
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\textbf{Netzwerk} meint
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\begin{itemize}
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\item Kommunikation zwischen Menschen unter Verwendung digitaler Medien (Computer, Handys, Datennetze)
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\end{itemize}
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\end{frame}
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%4
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\begin{frame}{Geschichte}
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\begin{itemize}
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\item OPAL-Netz in Berlin-Friedrichshain sorgte für Bedarf nach günstigen Breitbandverbindungen
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\item Linksys WRT54g --> Harald Welte gpl-violations.org --> OpenWRT (Jan. 2004)
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\item Entwicklung verschiedener meshing-Protokolle (OLSR, B.A.T.M.A.N., 802.11s...)
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\end{itemize}
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\begin{center}
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Die Kombination dieser drei Aspekte schafften Bedarf und Voraussetzungen für freifunk
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\end{center}
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\end{frame}
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%5
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\begin{frame}{Mit freifunk ins Internet}
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\includegraphics[width=\textwidth]{Freifunk_Knotenanbindung}
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\end{frame}
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%6
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\begin{frame}{Ziel des Projekts}
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\begin{itemize}
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\item Verbreitung offener WLAN-Netzwerke
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\item Zugangshürden zum Internet minimieren
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\item Aufklärung und Sensibilisierung zum Thema "Kommunikations- und Informationsfreiheit''
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\item Menschen dazu befähigen, eigene Netze aufzubauen und zu betreiben
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\item Soziale Strukturen bilden und unterstützen
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\end{itemize}
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\end{frame}
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%7
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\begin{frame}{Demo}
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\begin{itemize}
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\item Knotengraph (alt) \href{http://10.112.0.1/ffhh/nodes.html}{http://10.112.0.1/ffhh/nodes.html}
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\item Knotengraph (neu) \href{http://freifunk-gw01.hamburg.ccc.de/ffhhmap/nodes.html}{http://freifunk-gw01.hamburg.ccc.de/ffhhmap/nodes.html}
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\item Knotenkarte \href{http://freifunk-gw01.hamburg.ccc.de/ffhhmap/geomap.html}{http://freifunk-gw01.hamburg.ccc.de/ffhhmap/geomap.html}
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\end{itemize}
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\end{frame}
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%8
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\begin{frame}{Warum WLAN?}
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\begin{itemize}
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\item Mit WLAN können Daten mobil mit hoher Bandbreite gesendet und empfangen werden
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\item Die Kosten für WLAN-Hardware sind gering und es entstehen kaum Betriebskosten (Router ab \EUR{15}, Strom ca. \EUR{10} im Jahr)
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\item WLAN kann auch dort eingesetzt werden, wo es keine Kabel gibt oder eine Kabelverbindung zu teuer ist
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%[Parks, Entwicklungsländer, etc...]
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\end{itemize}
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\end{frame}
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%9
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\begin{frame}{Reichweite}
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\begin{center}
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\includegraphics[height=180pt]{Reichweite_altona001}
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\end{center}
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\end{frame}
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%10
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\begin{frame}{Mesh}
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Was ist ein mesh?
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\begin{itemize}
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\item to mesh = Englisch: vermaschen
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\item Selbst organisierende Netzwerke
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\item Jeder Router ist automatisch aktiver Teil des Netzwerks
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\item hamburg.freifunk.net Nutzt das Protokoll B.A.T.M.A.N.-adv.
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\end{itemize}
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Zwei SSIDs
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\begin{itemize}
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\item Freifunk Zugang: hamburg.freifunk.net
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\item Mashing (adhoc): f8:d1:11:87:52:2e
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\end{itemize}
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--> \it Demo [inSSIDer]
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\end{frame}
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%11
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\begin{frame}{Mesh}
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\begin{center}
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\begin{tikzpicture}
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\definecolor{outerCircleColour}{RGB}{220, 0, 103}
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\definecolor{innerCircleColour}{RGB}{255, 203, 18}
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\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
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\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
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\node [vertex] (a) {};
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\node [vertex, xshift=68pt, yshift=24pt] (b) {};
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\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
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\node [place, label=above:$A$] (A) {};
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\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
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\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
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\path[-, thick, color=gray]
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(A) edge (B)
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(B) edge (C);
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\end{tikzpicture}
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\end{center}
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\end{frame}
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%12
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\begin{frame}{Mesh}
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\begin{center}
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\begin{tikzpicture}
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\definecolor{outerCircleColour}{RGB}{220, 0, 103}
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\definecolor{innerCircleColour}{RGB}{255, 203, 18}
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\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
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\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
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\node [vertex] (a) {};
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\node [vertex, xshift=68pt, yshift=24pt] (b) {};
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\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
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\node [place, label=above:$A$] (A) {};
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\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
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\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
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\path[-, thick, color=gray]
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(A) edge (B)
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(B) edge (C)
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(A) edge[dashed] (C);
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\end{tikzpicture}
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\end{center}
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\end{frame}
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%13
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\begin{frame}{Das Netz wächst}
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\begin{center}
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\begin{tikzpicture}
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\definecolor{outerCircleColour}{RGB}{220, 0, 103}
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\definecolor{innerCircleColour}{RGB}{255, 203, 18}
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\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
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\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
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|
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\node [vertex] (a) {};
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\node [vertex, xshift=15pt, yshift=30pt] (b) {};
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\node [vertex, xshift=65pt, yshift=5pt] (c) {};
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\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
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\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
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\node [vertex, xshift=100pt, yshift=2pt] (f) {};
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\node [vertex, xshift=91pt, yshift=32pt] (g) {};
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||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
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||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
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||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
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||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
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||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
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||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
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\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
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|
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\node [place] (A) {};
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\node [place, xshift=15pt, yshift=30pt] (B) {};
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\node [place, xshift=65pt, yshift=5pt] (C) {};
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\node [place, xshift=33pt, yshift=-3pt] (D) {};
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\node [place, xshift=85pt, yshift=-25pt] (E) {};
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\node [place, xshift=100pt, yshift=2pt] (F) {};
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\node [place, xshift=91pt, yshift=32pt] (G) {};
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||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
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||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
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||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
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||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
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||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
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||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
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\node [place, xshift=201pt, yshift=-59pt] (N) {};
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\path[-, thick, color=gray]
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(A) edge (B)
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(A) edge (D)
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(B) edge (D)
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(C) edge (D)
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(C) edge (E)
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(C) edge (F)
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(C) edge (G)
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(E) edge (F)
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(E) edge (H)
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(F) edge (G)
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(F) edge (I)
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(F) edge (J)
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(G) edge (I)
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(H) edge (L)
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(I) edge (J)
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(J) edge (K)
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(K) edge (M)
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(L) edge (M)
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(M) edge (N);
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\end{tikzpicture}
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\end{center}
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\end{frame}
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%14
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\begin{frame}{Netzwerke verbinden sich untereinander}
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\begin{columns}[c]
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\begin{column}[l]{.4\textwidth}
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\scalebox{0.6}[0.6]{
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\begin{tikzpicture}
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\definecolor{outerCircleColour}{RGB}{220, 0, 103}
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\definecolor{innerCircleColour}{RGB}{255, 203, 18}
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\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
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\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
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||||
|
||||
\node [vertex] (a) {};
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||||
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||||
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||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
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||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
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||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
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||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
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||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
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||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
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||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
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||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
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|
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|
||||
\node [place] (A) {};
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||||
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||||
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|
||||
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||||
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||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
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||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
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|
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|
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||||
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|
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|
||||
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|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
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||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
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||||
(L) edge (M)
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||||
(M) edge (N);
|
||||
\end{tikzpicture}}
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||||
\end{column}
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||||
\begin{column}{0.185\textwidth}
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||||
\begin{uncoverenv}<2->
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||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
|
||||
\draw[color=white] (280pt, 85pt) arc (0:0:0pt);
|
||||
\draw[color=white] (-180pt, 85pt) arc (0:0:0pt);
|
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|
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|
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|
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|
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|
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|
||||
\end{uncoverenv}
|
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\end{column}
|
||||
\begin{column}[r]{.5\textwidth}
|
||||
\reflectbox{
|
||||
\scalebox{0.6}[0.6]{
|
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\begin{tikzpicture}
|
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||||
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||||
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|
||||
|
||||
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|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%15
|
||||
\begin{frame}{Ein Beispiel in Wilhelmsburg}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.9\textwidth]{wilhelmsburg}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%16
|
||||
\begin{frame}{Sicherheit}
|
||||
\begin{itemize}
|
||||
\item Da freifunk kein Kennwort nutzt, ist die Funkstrecke zum Zugangspunkt (wie bei allen offenen WLANs) unverschlüsselt
|
||||
\item Je nach Relevanz, empfiehlt es sich nach Möglichkeit verschlüsselte Protokolle zu nutzen (https://, ftps://, ssh, ggf. eigenes VPN) zu nutzen – wie sonst auch im Netz
|
||||
\item Verbindungen über die gateways sind verschlüsselt (fastd) --> kein Zugriff auf das „Heimnetzwerk“ möglich
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%17
|
||||
\begin{frame}{Störerhaftung}
|
||||
\begin{itemize}
|
||||
\item Die Zugangspunkte gehen nicht direkt in das Internet
|
||||
\item Es wird über das Internet eine mit fastd verschlüsselte VPN Verbindung zu den gateways aufgebaut
|
||||
\item Selbst die gateways sind nicht die Ausgänge ins GBI, sondern bauen wiederum VPNs ins Ausland auf
|
||||
\end{itemize}
|
||||
Resultat:
|
||||
\begin{itemize}
|
||||
\item \begin{it}Vorteil\end{it}: Störerhaftung nicht durchsetzbar
|
||||
\item \begin{it}Nachteil\end{it}: Bandbreiten-limitierung durch Verschlüsselung (auf den kleinen routern ca. 6Mb/s)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%18
|
||||
\begin{frame}{Gentlemen's Agreement}
|
||||
\begin{itemize}
|
||||
\item Sei Fair!
|
||||
\item Achte auf deine Sicherheit!
|
||||
\item Keine rechtswidrige Nutzung!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%19
|
||||
\begin{frame}{Geräte}
|
||||
Voraussetzung für den Einsatz der hamburger freifunk software
|
||||
\begin{itemize}
|
||||
\item Unterstützt von OpenWRT \begin{it}Attitude Adjustment\end{it}
|
||||
\item 4 MB Flash, 32 MB RAM
|
||||
\item Ansonsten ist sehr zu empfehlen, einen Router mit aktuellem Atheros-WLAN-Chip zu haben (ath9k-Treiber, 802.11n-fähig), die sind recht gut für Mesh-WLAN geeignet
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%20
|
||||
\begin{frame}{Geräte}
|
||||
\begin{columns}[c]
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{itemize}
|
||||
\item TP-Link 741nd (ab \EUR{15})
|
||||
\item TP-Link 841nd
|
||||
\item TP-Link 842nd (ab \EUR{25})
|
||||
\begin{itemize}
|
||||
\item Atheros AR7241 SOC
|
||||
\item 8 MB flash
|
||||
\item 32MB RAM
|
||||
\item 300Mbit/s
|
||||
\end{itemize}
|
||||
\item TP-Link 1043nd
|
||||
\item TP-Link 3600
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[height=150pt]{741nd}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%21
|
||||
\begin{frame}{Dienste}
|
||||
Implementiert
|
||||
\begin{itemize}
|
||||
\item Internet
|
||||
\item Stadtweites Intranet (IPv4 \& IPv6)
|
||||
\end{itemize}
|
||||
Noch zu implementieren
|
||||
\begin{itemize}
|
||||
\item Voice over IP (SIP)
|
||||
\item IC-VPN, Chaos-VPN, DN42...
|
||||
\item DNS (für das Intranet)
|
||||
\item Alles was du anbieten möchtest...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%22
|
||||
\begin{frame}{Netzaufbau}
|
||||
Derzeit zwei gateways / DHCP-server
|
||||
\begin{itemize}
|
||||
\item muehlentor.mesh.ffhl.chaotikum.org
|
||||
\item freifunk-gw01.hamburg.ccc.de
|
||||
\end{itemize}
|
||||
Intranet IP-Bereiche
|
||||
\begin{itemize}
|
||||
\item v4 RFC 1918 Bereich: 10.112.0.0/16
|
||||
\item v6 Unique Local Unicast Bereich: fd51:2bb2:fd0d::/48
|
||||
\end{itemize}
|
||||
VPN-Tunnel zu \href{https://www.mullvad.net/}{https://www.mullvad.net/}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%23
|
||||
\begin{frame}{Demo}
|
||||
Blick auf den Zugangspunkt / OpenWRT \it Attitude Adjustment
|
||||
\end{frame}
|
||||
|
||||
|
||||
%24
|
||||
\begin{frame}{Ausblick}
|
||||
\begin{itemize}
|
||||
\item Weitere gateways
|
||||
\item Wachsende Zahl von Zugangspunkten in Cafés, Restaurants, etc.
|
||||
\item Kooperation mit der Stadt Hamburg (WLAN in Parks, Tourismus-Förderung...)
|
||||
\item Kooperation mit dem HVV
|
||||
\item Hochschulen / Studentenwerk
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%25
|
||||
\begin{frame}{Projekte}
|
||||
\begin{itemize}
|
||||
\item Antennenbau-Workshop
|
||||
\item Outdoor-Gehäuse
|
||||
\item Solarbetrieb
|
||||
\item Flash-Workshops
|
||||
\item PPPoE implementieren
|
||||
\item Privates WLAN implementieren
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%26
|
||||
\begin{frame}{Wie kann man mitmachen?}
|
||||
\begin{itemize}
|
||||
\item Alle können Freifunker/innen werden, besondere technische Kenntnisse sind nicht notwendig
|
||||
\item Werde ein Teil des Netzwerks, indem du bei dir im Haus einen Freifunk-Knoten aufstellst
|
||||
\item Treffen jeden Montag um 19:00 Uhr in den Räumen des CCCHH
|
||||
\item Verbreite die Idee!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%27
|
||||
\begin{frame}{Vielen Dank!}
|
||||
\begin{columns}
|
||||
\begin{column}{0.6\textwidth}
|
||||
\begin{itemize}
|
||||
\item Netz: hamburg.freifunk.net
|
||||
\item Mail: kontakt@hamburg.freifunk.net
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.5\textwidth]{cc-by}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
\end{document}
|
||||
503
2013.04.25_centro_sociale.tex
Normal file
503
2013.04.25_centro_sociale.tex
Normal file
|
|
@ -0,0 +1,503 @@
|
|||
%\documentclass[aspectratio=43]{beamer}
|
||||
\documentclass[c]{beamer}
|
||||
\usetheme{intridea} %% Themenwahl
|
||||
|
||||
\usepackage[ngerman]{babel}
|
||||
\usepackage[T1]{fontenc} % richtige Silbentrennung
|
||||
\usepackage[utf8]{inputenc} % Umlaute etc.!
|
||||
\usepackage{eurosym}
|
||||
\usepackage{tikz}
|
||||
|
||||
\usetikzlibrary{arrows,decorations.pathmorphing,backgrounds,fit,positioning,shapes.symbols,chains}
|
||||
|
||||
%1
|
||||
|
||||
\title{Freifunk Hamburg}
|
||||
\author{hamburg.freifunk.net}
|
||||
\date{25. April 2013}
|
||||
|
||||
|
||||
%2
|
||||
\begin{document}
|
||||
\maketitle
|
||||
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\begin{itemize}
|
||||
\item Initiative für freie, offene, kostenlose Funk- und Datennetzwerke
|
||||
\item freifunk steht jedem offen, als Nutzer oder Anbieter
|
||||
\item Als freifunk-Knoten (Zugangspunkt) dienen dafür vorbereitete WLAN-router
|
||||
\item In vielen Orten gibt es bereits Freifunknetze (Berlin, Wien, Augsburg, Lübeck, Kiel, Rheinland, Hamburg...)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%3
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\textbf{Frei} wird verstanden als
|
||||
\begin{itemize}
|
||||
\item Öffentlich - jedem zugänglich
|
||||
\item Nicht kommerziell
|
||||
\item Im Besitz der Gemeinschaft
|
||||
\item Netzneutral - keine Manipulation der Datenströme
|
||||
\end{itemize}
|
||||
\textbf{Netzwerk} meint
|
||||
\begin{itemize}
|
||||
\item Kommunikation zwischen Menschen unter Verwendung digitaler Medien (Computer, Handys, Datennetze)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%4
|
||||
\begin{frame}{Mit freifunk ins Internet}
|
||||
\includegraphics[width=\textwidth]{Freifunk_Knotenanbindung}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%5
|
||||
\begin{frame}{Ziel des Projekts}
|
||||
\begin{itemize}
|
||||
\item Verbreitung offener WLAN-Netzwerke
|
||||
\item Zugangshürden zum Internet minimieren
|
||||
\item Aufklärung und Sensibilisierung zum Thema "Kommunikations- und Informationsfreiheit''
|
||||
\item Menschen dazu befähigen, eigene Netze aufzubauen und zu betreiben
|
||||
\item Soziale Strukturen bilden und unterstützen
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%6
|
||||
\begin{frame}{Knotenkarte}
|
||||
\begin{center}
|
||||
\includegraphics[height=180pt]{knotenkarte}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%7
|
||||
\begin{frame}{Warum WLAN?}
|
||||
\begin{itemize}
|
||||
\item Mit WLAN können Daten mobil mit hoher Bandbreite gesendet und empfangen werden
|
||||
\item Die Kosten für WLAN-Hardware sind gering und es entstehen kaum Betriebskosten (Router ab \EUR{15}, Strom ca. \EUR{10} im Jahr)
|
||||
\item WLAN kann auch dort eingesetzt werden, wo es keine Kabel gibt oder eine Kabelverbindung zu teuer ist
|
||||
%[Parks, Entwicklungsländer, etc...]
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%8
|
||||
\begin{frame}{Reichweite}
|
||||
\begin{center}
|
||||
\includegraphics[height=180pt]{Reichweite_altona001}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%9
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%10
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C)
|
||||
(A) edge[dashed] (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%11
|
||||
\begin{frame}{Das Netz wächst}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%12
|
||||
\begin{frame}{Netzwerke verbinden sich untereinander}
|
||||
\begin{columns}[c]
|
||||
\begin{column}[l]{.4\textwidth}
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}
|
||||
\end{column}
|
||||
\begin{column}{0.185\textwidth}
|
||||
\begin{uncoverenv}<2->
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
|
||||
\draw[color=white] (280pt, 85pt) arc (0:0:0pt);
|
||||
\draw[color=white] (-180pt, 85pt) arc (0:0:0pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=9pt] (-110pt, 0pt) arc (270:450:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=11pt] (-110pt, 0pt) arc (270:450:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=13pt] (-110pt, 0pt) arc (270:450:2pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=21pt] (-110pt, 0pt) arc (90:270:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=19pt] (-110pt, 0pt) arc (90:270:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=17pt] (-110pt, 0pt) arc (90:270:2pt);
|
||||
|
||||
\draw[color=gray, ultra thick, xshift=-50pt, yshift=15] (-103pt, 0pt) edge[dashed] (-74pt, 0pt);
|
||||
\end{tikzpicture}
|
||||
\end{uncoverenv}
|
||||
\end{column}
|
||||
\begin{column}[r]{.5\textwidth}
|
||||
\reflectbox{
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%13
|
||||
\begin{frame}{Ein Beispiel in Wilhelmsburg}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.9\textwidth]{wilhelmsburg}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%14
|
||||
\begin{frame}{Sicherheit}
|
||||
\begin{itemize}
|
||||
\item Da freifunk kein Kennwort nutzt, ist die Funkstrecke zum Zugangspunkt (wie bei allen offenen WLANs) unverschlüsselt
|
||||
\item Je nach Relevanz, empfiehlt es sich nach Möglichkeit verschlüsselte Protokolle zu nutzen (https://, ftps://, ssh, ggf. eigenes VPN) zu nutzen – wie sonst auch im Netz
|
||||
\item Verbindungen über die gateways sind verschlüsselt (fastd) --> kein Zugriff auf das „Heimnetzwerk“ möglich
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%15
|
||||
\begin{frame}{Störerhaftung}
|
||||
\begin{itemize}
|
||||
\item Die Zugangspunkte gehen nicht direkt in das Internet
|
||||
\item Es wird über das Internet eine mit fastd verschlüsselte VPN Verbindung zu den gateways aufgebaut
|
||||
\item Selbst die gateways sind nicht die Ausgänge ins GBI, sondern bauen wiederum VPNs ins Ausland auf
|
||||
\end{itemize}
|
||||
Resultat:
|
||||
\begin{itemize}
|
||||
\item \begin{it}Vorteil\end{it}: Störerhaftung nicht durchsetzbar
|
||||
\item \begin{it}Nachteil\end{it}: Bandbreiten-limitierung durch Verschlüsselung (auf den kleinen routern ca. 6Mb/s)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%16
|
||||
\begin{frame}{Gentlemen's Agreement}
|
||||
\begin{itemize}
|
||||
\item Sei Fair!
|
||||
\item Achte auf deine Sicherheit!
|
||||
\item Keine rechtswidrige Nutzung!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%17
|
||||
\begin{frame}{Geräte}
|
||||
\begin{columns}[c]
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{itemize}
|
||||
\item TP-Link 741nd (ab \EUR{15})
|
||||
\item TP-Link 841nd
|
||||
\item TP-Link 842nd (ab \EUR{25})
|
||||
\begin{itemize}
|
||||
\item Atheros AR7241 SOC
|
||||
\item 8 MB flash
|
||||
\item 32MB RAM
|
||||
\item 300Mbit/s
|
||||
\end{itemize}
|
||||
\item TP-Link 1043nd
|
||||
\item TP-Link 3600
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[height=150pt]{741nd}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%18
|
||||
\begin{frame}{Dienste}
|
||||
Implementiert
|
||||
\begin{itemize}
|
||||
\item Internet
|
||||
\item Stadtweites Intranet (IPv4 \& IPv6)
|
||||
\end{itemize}
|
||||
Noch zu implementieren
|
||||
\begin{itemize}
|
||||
\item Voice over IP (SIP)
|
||||
\item IC-VPN, Chaos-VPN, DN42...
|
||||
\item DNS (für das Intranet)
|
||||
\item Alles was du anbieten möchtest...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%19
|
||||
\begin{frame}{Ausblick}
|
||||
\begin{itemize}
|
||||
\item Wachsende Zahl von Zugangspunkten in Cafés, Restaurants, etc.
|
||||
\item Kooperation mit der Stadt Hamburg (WLAN in Parks, Tourismus-Förderung...)
|
||||
\item Kooperation mit dem HVV
|
||||
\item Hochschulen / Studentenwerk
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%20
|
||||
\begin{frame}{Wie kann man mitmachen?}
|
||||
\begin{itemize}
|
||||
\item Alle können Freifunker/innen werden, besondere technische Kenntnisse sind nicht notwendig
|
||||
\item Werde ein Teil des Netzwerks, indem du bei dir im Haus einen Freifunk-Knoten aufstellst
|
||||
\item Treffen jeden Montag um 19:00 Uhr in den Räumen des CCCHH
|
||||
\item Verbreite die Idee!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%21
|
||||
\begin{frame}{Vielen Dank!}
|
||||
\begin{columns}
|
||||
\begin{column}{0.6\textwidth}
|
||||
\begin{itemize}
|
||||
\item Netz: hamburg.freifunk.net
|
||||
\item Mail: kontakt@hamburg.freifunk.net
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.5\textwidth]{cc-by}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
\end{document}
|
||||
BIN
2013.06.25_humanistlab.pdf
Normal file
BIN
2013.06.25_humanistlab.pdf
Normal file
Binary file not shown.
518
2013.06.25_humanistlab.tex
Normal file
518
2013.06.25_humanistlab.tex
Normal file
|
|
@ -0,0 +1,518 @@
|
|||
%\documentclass[aspectratio=43]{beamer}
|
||||
\documentclass[c]{beamer}
|
||||
\usetheme{intridea} %% Themenwahl
|
||||
|
||||
\usepackage[ngerman]{babel}
|
||||
\usepackage[T1]{fontenc} % richtige Silbentrennung
|
||||
\usepackage[utf8]{inputenc} % Umlaute etc.!
|
||||
\usepackage{eurosym}
|
||||
\usepackage{tikz}
|
||||
|
||||
\usetikzlibrary{arrows,decorations.pathmorphing,backgrounds,fit,positioning,shapes.symbols,chains}
|
||||
|
||||
%1
|
||||
|
||||
\title{Freifunk Hamburg}
|
||||
\author{hamburg.freifunk.net}
|
||||
\date{25. Juni 2013}
|
||||
|
||||
|
||||
%2
|
||||
\begin{document}
|
||||
\maketitle
|
||||
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\begin{itemize}
|
||||
\item Initiative für freie, offene, kostenlose Funk- und Datennetzwerke
|
||||
\item freifunk steht jedem offen, als Nutzer oder Anbieter
|
||||
\item Als freifunk-Knoten (Zugangspunkt) dienen dafür vorbereitete WLAN-router
|
||||
\item In vielen Orten gibt es bereits Freifunknetze (Berlin, Wien, Augsburg, Lübeck, Kiel, Rheinland, Hamburg...)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%3
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\textbf{Frei} wird verstanden als
|
||||
\begin{itemize}
|
||||
\item Öffentlich - jedem zugänglich
|
||||
\item Nicht kommerziell
|
||||
\item Im Besitz der Gemeinschaft
|
||||
\item Netzneutral - keine Manipulation der Datenströme
|
||||
\end{itemize}
|
||||
\textbf{Netzwerk} meint
|
||||
\begin{itemize}
|
||||
\item Kommunikation zwischen Menschen unter Verwendung digitaler Medien (Computer, Handys, Datennetze)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%4
|
||||
\begin{frame}{Mit freifunk ins Internet}
|
||||
\includegraphics[width=\textwidth]{Freifunk_Knotenanbindung}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%5
|
||||
\begin{frame}{Ziel des Projekts}
|
||||
\begin{itemize}
|
||||
\item Verbreitung offener WLAN-Netzwerke
|
||||
\item Zugangshürden zum Internet minimieren
|
||||
\item Aufklärung und Sensibilisierung zum Thema "Kommunikations- und Informationsfreiheit''
|
||||
\item Menschen dazu befähigen, eigene Netze aufzubauen und zu betreiben
|
||||
\item Soziale Strukturen bilden und unterstützen
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%6
|
||||
\begin{frame}{Demo}
|
||||
\begin{itemize}
|
||||
\item Knotenkarte \href{http://knotenkarte.de}{http://knotenkarte.de}
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%7
|
||||
\begin{frame}{Warum WLAN?}
|
||||
\begin{itemize}
|
||||
\item Mit WLAN können Daten mobil mit hoher Bandbreite gesendet und empfangen werden
|
||||
\item Die Kosten für WLAN-Hardware sind gering und es entstehen kaum Betriebskosten (Router ab \EUR{15}, Strom ca. \EUR{10} im Jahr)
|
||||
\item WLAN kann auch dort eingesetzt werden, wo es keine Kabel gibt oder eine Kabelverbindung zu teuer ist
|
||||
%[Parks, Entwicklungsländer, etc...]
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%8
|
||||
\begin{frame}{Reichweite}
|
||||
\begin{center}
|
||||
\includegraphics[height=180pt]{Reichweite_altona001}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%9
|
||||
\begin{frame}{Mesh}
|
||||
Was ist ein mesh?
|
||||
\begin{itemize}
|
||||
\item to mesh = Englisch: vermaschen
|
||||
\item Selbst organisierende Netzwerke
|
||||
\item Jeder Router ist automatisch aktiver Teil des Netzwerks
|
||||
\item hamburg.freifunk.net Nutzt das Protokoll B.A.T.M.A.N.-adv.
|
||||
\end{itemize}
|
||||
Zwei SSIDs
|
||||
\begin{itemize}
|
||||
\item Freifunk Zugang: hamburg.freifunk.net
|
||||
\item Mashing (adhoc): f8:d1:11:87:52:2e
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%10
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%11
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C)
|
||||
(A) edge[dashed] (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
%12
|
||||
\begin{frame}{Das Netz wächst}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%13
|
||||
\begin{frame}{Netzwerke verbinden sich untereinander}
|
||||
\begin{columns}[c]
|
||||
\begin{column}[l]{.4\textwidth}
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}
|
||||
\end{column}
|
||||
\begin{column}{0.185\textwidth}
|
||||
\begin{uncoverenv}<2->
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
|
||||
\draw[color=white] (280pt, 85pt) arc (0:0:0pt);
|
||||
\draw[color=white] (-180pt, 85pt) arc (0:0:0pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=9pt] (-110pt, 0pt) arc (270:450:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=11pt] (-110pt, 0pt) arc (270:450:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=13pt] (-110pt, 0pt) arc (270:450:2pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=21pt] (-110pt, 0pt) arc (90:270:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=19pt] (-110pt, 0pt) arc (90:270:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=17pt] (-110pt, 0pt) arc (90:270:2pt);
|
||||
|
||||
\draw[color=gray, ultra thick, xshift=-50pt, yshift=15] (-103pt, 0pt) edge[dashed] (-74pt, 0pt);
|
||||
\end{tikzpicture}
|
||||
\end{uncoverenv}
|
||||
\end{column}
|
||||
\begin{column}[r]{.5\textwidth}
|
||||
\reflectbox{
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%14
|
||||
\begin{frame}{Ein Beispiel in Wilhelmsburg}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.9\textwidth]{wilhelmsburg}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%15
|
||||
\begin{frame}{Sicherheit}
|
||||
\begin{itemize}
|
||||
\item Da freifunk kein Kennwort nutzt, ist die Funkstrecke zum Zugangspunkt (wie bei allen offenen WLANs) unverschlüsselt
|
||||
\item Je nach Relevanz, empfiehlt es sich nach Möglichkeit verschlüsselte Protokolle zu nutzen (https://, ftps://, ssh, ggf. eigenes VPN) zu nutzen – wie sonst auch im Netz
|
||||
\item Verbindungen über die gateways sind verschlüsselt (fastd) --> kein Zugriff auf das „Heimnetzwerk“ möglich
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%16
|
||||
\begin{frame}{Störerhaftung}
|
||||
\begin{itemize}
|
||||
\item Die Zugangspunkte gehen nicht direkt in das Internet
|
||||
\item Es wird über das Internet eine mit fastd verschlüsselte VPN Verbindung zu den gateways aufgebaut
|
||||
\item Selbst die gateways sind nicht die Ausgänge ins GBI, sondern bauen wiederum VPNs ins Ausland auf
|
||||
\end{itemize}
|
||||
Resultat:
|
||||
\begin{itemize}
|
||||
\item \begin{it}Vorteil\end{it}: Störerhaftung nicht durchsetzbar
|
||||
\item \begin{it}Nachteil\end{it}: Bandbreiten-limitierung durch Verschlüsselung (auf den kleinen routern ca. 6Mb/s)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%17
|
||||
\begin{frame}{Community Agreement}
|
||||
\begin{itemize}
|
||||
\item Sei Fair!
|
||||
\item Achte auf deine Sicherheit!
|
||||
\item Keine rechtswidrige Nutzung!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%18
|
||||
\begin{frame}{Geräte}
|
||||
\begin{columns}[c]
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{itemize}
|
||||
\item TP-Link 741nd (ab \EUR{15})
|
||||
\item TP-Link 841nd
|
||||
\item TP-Link 842nd (ab \EUR{25})
|
||||
\begin{itemize}
|
||||
\item Atheros AR7241 SOC
|
||||
\item 8 MB flash
|
||||
\item 32MB RAM
|
||||
\item 300Mbit/s
|
||||
\end{itemize}
|
||||
\item TP-Link 1043nd
|
||||
\item TP-Link 3600
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[height=150pt]{741nd}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%19
|
||||
\begin{frame}{Dienste}
|
||||
Implementiert
|
||||
\begin{itemize}
|
||||
\item Internet
|
||||
\item Stadtweites Intranet (IPv4 \& IPv6)
|
||||
\item IC-VPN, Chaos-VPN, DN42... (noch nicht vollständig ausgerollt)
|
||||
\item DNS (für das Intranet; noch nicht vollständig ausgerollt)
|
||||
\end{itemize}
|
||||
Noch zu implementieren
|
||||
\begin{itemize}
|
||||
\item Voice over IP (SIP)
|
||||
\item Alles was du anbieten möchtest...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%20
|
||||
\begin{frame}{Ausblick}
|
||||
\begin{itemize}
|
||||
\item Wachsende Zahl von Zugangspunkten in Cafés, Restaurants, etc.
|
||||
\item Kooperation mit der Stadt Hamburg (WLAN in Parks, Tourismus-Förderung...)
|
||||
\item Kooperation mit dem HVV
|
||||
\item Hochschulen / Studentenwerk
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%21
|
||||
\begin{frame}{Projekte}
|
||||
\begin{itemize}
|
||||
\item Antennenbau-Workshop
|
||||
\item Outdoor-Gehäuse
|
||||
\item Solarbetrieb
|
||||
\item Flash-Workshops
|
||||
\item PPPoE
|
||||
\item Privates WLAN
|
||||
\item uplink über WLAN
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%22
|
||||
\begin{frame}{Wie kann man mitmachen?}
|
||||
\begin{itemize}
|
||||
\item Alle können Freifunker/innen werden, besondere technische Kenntnisse sind nicht notwendig
|
||||
\item Werde ein Teil des Netzwerks, indem du bei dir im Haus einen Freifunk-Knoten aufstellst
|
||||
\item Treffen jeden Montag um 19:00 Uhr in den Rämen des CCCHH (und demnächst im Attraktor und im Humanist Lab?)
|
||||
\item Verbreite die Idee!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%23
|
||||
\begin{frame}{Vielen Dank!}
|
||||
\begin{columns}
|
||||
\begin{column}{0.6\textwidth}
|
||||
\begin{itemize}
|
||||
\item Netz: hamburg.freifunk.net
|
||||
\item Mail: kontakt@hamburg.freifunk.net
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.5\textwidth]{cc-by}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
\end{document}
|
||||
BIN
2013.07.27_keine_knete_trotzdem_fete.pdf
Normal file
BIN
2013.07.27_keine_knete_trotzdem_fete.pdf
Normal file
Binary file not shown.
537
2013.07.27_keine_knete_trotzdem_fete.tex
Normal file
537
2013.07.27_keine_knete_trotzdem_fete.tex
Normal file
|
|
@ -0,0 +1,537 @@
|
|||
%\documentclass[aspectratio=43]{beamer}
|
||||
\documentclass[c]{beamer}
|
||||
\usetheme{intridea} %% Themenwahl
|
||||
|
||||
\usepackage[ngerman]{babel}
|
||||
\usepackage[T1]{fontenc} % richtige Silbentrennung
|
||||
\usepackage[utf8]{inputenc} % Umlaute etc.!
|
||||
\usepackage{eurosym}
|
||||
\usepackage{tikz}
|
||||
|
||||
\usetikzlibrary{arrows,decorations.pathmorphing,backgrounds,fit,positioning,shapes.symbols,chains}
|
||||
|
||||
%1
|
||||
|
||||
\title{Freifunk Hamburg}
|
||||
\author{hamburg.freifunk.net}
|
||||
\date{27. Juli 2013}
|
||||
|
||||
|
||||
%2
|
||||
\begin{document}
|
||||
\maketitle
|
||||
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\begin{itemize}
|
||||
\item Initiative für freie, offene, kostenlose Funk- und Datennetzwerke
|
||||
\item freifunk steht jedem offen, als Nutzer oder Anbieter
|
||||
\item Als freifunk-Knoten (Zugangspunkt) dienen dafür vorbereitete WLAN-router
|
||||
\item In vielen Orten gibt es bereits Freifunknetze (Berlin, Wien, Augsburg, Lübeck, Kiel, Rheinland, Hamburg...)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%3
|
||||
\begin{frame}{Was ist freifunk?}
|
||||
\textbf{Frei} wird verstanden als
|
||||
\begin{itemize}
|
||||
\item Öffentlich - jedem zugänglich
|
||||
\item Nicht kommerziell
|
||||
\item Im Besitz der Gemeinschaft
|
||||
\item Netzneutral - keine Manipulation der Datenströme
|
||||
\end{itemize}
|
||||
\textbf{Netzwerk} meint
|
||||
\begin{itemize}
|
||||
\item Kommunikation zwischen Menschen unter Verwendung digitaler Medien (Computer, Handys, Datennetze)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%4
|
||||
\begin{frame}{Geschichte}
|
||||
\begin{itemize}
|
||||
\item OPAL-Netz in Berlin-Friedrichshain sorgte für Bedarf nach günstigen Breitbandverbindungen
|
||||
\item Linksys WRT54g --> Harald Welte gpl-violations.org --> OpenWRT (Jan. 2004)
|
||||
\item Entwicklung verschiedener meshing-Protokolle (OLSR, B.A.T.M.A.N., 802.11s...)
|
||||
\end{itemize}
|
||||
\begin{center}
|
||||
Die Kombination dieser drei Aspekte schafften Bedarf und Voraussetzungen für freifunk
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%5
|
||||
\begin{frame}{Mit freifunk ins Internet}
|
||||
\includegraphics[height=180pt]{Bilder/Knotenanbindung2}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%6
|
||||
\begin{frame}{Ziel des Projekts}
|
||||
\begin{itemize}
|
||||
\item Verbreitung offener WLAN-Netzwerke
|
||||
\item Zugangshürden zum Internet minimieren
|
||||
\item Aufklärung und Sensibilisierung zum Thema "Kommunikations- und Informationsfreiheit''
|
||||
\item Menschen dazu befähigen, eigene Netze aufzubauen und zu betreiben
|
||||
\item Soziale Strukturen bilden und unterstützen
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%7
|
||||
\begin{frame}{Demo}
|
||||
\begin{itemize}
|
||||
\item Knotenkarte \href{http://knotenkarte.de}{http://knotenkarte.de}
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%8
|
||||
\begin{frame}{Warum WLAN?}
|
||||
\begin{itemize}
|
||||
\item Mit WLAN können Daten mobil mit hoher Bandbreite gesendet und empfangen werden
|
||||
\item Die Kosten für WLAN-Hardware sind gering und es entstehen kaum Betriebskosten (Router ab \EUR{15}, Strom ca. \EUR{10} im Jahr)
|
||||
\item WLAN kann auch dort eingesetzt werden, wo es keine Kabel gibt oder eine Kabelverbindung zu teuer ist
|
||||
%[Parks, Entwicklungsländer, etc...]
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%9
|
||||
\begin{frame}{Reichweite}
|
||||
\begin{center}
|
||||
\includegraphics[height=180pt]{Reichweite_altona001}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%10
|
||||
\begin{frame}{Mesh}
|
||||
Was ist ein mesh?
|
||||
\begin{itemize}
|
||||
\item to mesh = Englisch: vermaschen
|
||||
\item Selbst organisierende Netzwerke
|
||||
\item Jeder Router ist automatisch aktiver Teil des Netzwerks
|
||||
\item hamburg.freifunk.net Nutzt das Protokoll B.A.T.M.A.N.-adv.
|
||||
\end{itemize}
|
||||
Zwei SSIDs
|
||||
\begin{itemize}
|
||||
\item Freifunk Zugang: hamburg.freifunk.net
|
||||
\item Mashing (adhoc): f8:d1:11:87:52:2e
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%11
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%12
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C)
|
||||
(A) edge[dashed] (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
%13
|
||||
\begin{frame}{Das Netz wächst}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%14
|
||||
\begin{frame}{Netzwerke verbinden sich untereinander}
|
||||
\begin{columns}[c]
|
||||
\begin{column}[l]{.4\textwidth}
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}
|
||||
\end{column}
|
||||
\begin{column}{0.185\textwidth}
|
||||
\begin{uncoverenv}<2->
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
|
||||
\draw[color=white] (280pt, 85pt) arc (0:0:0pt);
|
||||
\draw[color=white] (-180pt, 85pt) arc (0:0:0pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=9pt] (-110pt, 0pt) arc (270:450:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=11pt] (-110pt, 0pt) arc (270:450:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=13pt] (-110pt, 0pt) arc (270:450:2pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=21pt] (-110pt, 0pt) arc (90:270:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=19pt] (-110pt, 0pt) arc (90:270:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=17pt] (-110pt, 0pt) arc (90:270:2pt);
|
||||
|
||||
\draw[color=gray, ultra thick, xshift=-50pt, yshift=15] (-103pt, 0pt) edge[dashed] (-74pt, 0pt);
|
||||
\end{tikzpicture}
|
||||
\end{uncoverenv}
|
||||
\end{column}
|
||||
\begin{column}[r]{.5\textwidth}
|
||||
\reflectbox{
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%15
|
||||
\begin{frame}{Ein Beispiel in Wilhelmsburg}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.9\textwidth]{wilhelmsburg}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%16
|
||||
\begin{frame}{Sicherheit}
|
||||
\begin{itemize}
|
||||
\item Da freifunk kein Kennwort nutzt, ist die Funkstrecke zum Zugangspunkt (wie bei allen offenen WLANs) unverschlüsselt
|
||||
\item Je nach Relevanz, empfiehlt es sich nach Möglichkeit verschlüsselte Protokolle zu nutzen (https://, ftps://, ssh, ggf. eigenes VPN) zu nutzen – wie sonst auch im Netz
|
||||
\item Verbindungen über die gateways sind verschlüsselt (fastd) --> kein Zugriff auf das „Heimnetzwerk“ möglich
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%17
|
||||
\begin{frame}{Störerhaftung}
|
||||
\begin{itemize}
|
||||
\item Die Zugangspunkte gehen nicht direkt in das Internet
|
||||
\item Es wird über das Internet eine mit fastd verschlüsselte VPN Verbindung zu den gateways aufgebaut
|
||||
\item Selbst die gateways sind nicht die Ausgänge ins GBI, sondern bauen wiederum VPNs ins Ausland auf
|
||||
\end{itemize}
|
||||
Resultat:
|
||||
\begin{itemize}
|
||||
\item \begin{it}Vorteil\end{it}: Störerhaftung nicht durchsetzbar
|
||||
\item \begin{it}Nachteil\end{it}: Bandbreiten-limitierung durch Verschlüsselung (auf den kleinen routern ca. 6Mb/s)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%18
|
||||
\begin{frame}{Community Agreement}
|
||||
\begin{itemize}
|
||||
\item Sei Fair!
|
||||
\item Achte auf deine Sicherheit!
|
||||
\item Keine rechtswidrige Nutzung!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
%19
|
||||
\begin{frame}{Geräte}
|
||||
\begin{columns}[c]
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{itemize}
|
||||
\item TP-Link 741nd (ab \EUR{15})
|
||||
\item TP-Link 841nd
|
||||
\item TP-Link 842nd (ab \EUR{25})
|
||||
\begin{itemize}
|
||||
\item Atheros AR7241 SOC
|
||||
\item 8 MB flash
|
||||
\item 32MB RAM
|
||||
\item 300Mbit/s
|
||||
\end{itemize}
|
||||
\item TP-Link 1043nd
|
||||
\item TP-Link 3600
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[height=150pt]{741nd}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%20
|
||||
\begin{frame}{Dienste}
|
||||
Implementiert
|
||||
\begin{itemize}
|
||||
\item Internet
|
||||
\item Stadtweites Intranet (IPv4 \& IPv6)
|
||||
\end{itemize}
|
||||
Teilweise implementiert
|
||||
\begin{itemize}
|
||||
\item IC-VPN, Chaos-VPN, DN42...
|
||||
\end{itemize}
|
||||
Noch zu implementieren
|
||||
\begin{itemize}
|
||||
\item Voice over IP (SIP)
|
||||
\item DNS (für das Intranet)
|
||||
\item Alles was du anbieten möchtest...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%21
|
||||
\begin{frame}{Ausblick}
|
||||
\begin{itemize}
|
||||
\item Weitere gateways
|
||||
\item Wachsende Zahl von Zugangspunkten in Cafés, Restaurants, etc.
|
||||
\item Kooperation mit der Stadt Hamburg (WLAN in Parks, Tourismus-Förderung...)
|
||||
\item Kooperation mit dem HVV
|
||||
\item Hochschulen / Studentenwerk
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%22
|
||||
\begin{frame}{Projekte}
|
||||
\begin{itemize}
|
||||
\item Antennenbau-Workshop
|
||||
\item Outdoor-Gehäuse
|
||||
\item Solarbetrieb
|
||||
\item Flash-Workshops
|
||||
\item PPPoE implementieren
|
||||
\item Privates WLAN implementieren
|
||||
\item Internet Uplink über WLAN
|
||||
\item Vernwartung und Monitoring der Knoten
|
||||
\item Mailserver aufsetzen
|
||||
\item Knoteneinstellungsverwaltung über's Netz
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%23
|
||||
\begin{frame}{Wie kann man mitmachen?}
|
||||
\begin{itemize}
|
||||
\item Alle können Freifunker/innen werden, besondere technische Kenntnisse sind nicht notwendig
|
||||
\item Werde ein Teil des Netzwerks, indem du bei dir im Haus einen Freifunk-Knoten aufstellst
|
||||
\item Treffen jeden Montag um 19:00 Uhr in den Räumen des CCCHH
|
||||
\item Verbreite die Idee!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%24
|
||||
\begin{frame}{Vielen Dank!}
|
||||
\begin{columns}
|
||||
\begin{column}{0.6\textwidth}
|
||||
\begin{itemize}
|
||||
\item Netz: hamburg.freifunk.net
|
||||
\item Mail: kontakt@hamburg.freifunk.net
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.5\textwidth]{cc-by}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
\end{document}
|
||||
BIN
2013.07.28_hacktable.pdf
Normal file
BIN
2013.07.28_hacktable.pdf
Normal file
Binary file not shown.
566
2013.07.28_hacktable.tex
Normal file
566
2013.07.28_hacktable.tex
Normal file
|
|
@ -0,0 +1,566 @@
|
|||
%\documentclass[aspectratio=43]{beamer}
|
||||
\documentclass[c]{beamer}
|
||||
\usetheme{intridea} %% Themenwahl
|
||||
|
||||
\usepackage[ngerman]{babel}
|
||||
\usepackage[T1]{fontenc} % richtige Silbentrennung
|
||||
\usepackage[utf8]{inputenc} % Umlaute etc.!
|
||||
\usepackage{eurosym}
|
||||
\usepackage{tikz}
|
||||
|
||||
\usetikzlibrary{arrows,decorations.pathmorphing,backgrounds,fit,positioning,shapes.symbols,chains}
|
||||
|
||||
%1
|
||||
|
||||
\title{Freifunk Hamburg}
|
||||
\author{hamburg.freifunk.net}
|
||||
\date{2013/July/28}
|
||||
|
||||
|
||||
%2
|
||||
\begin{document}
|
||||
\maketitle
|
||||
|
||||
\begin{frame}{What is freifunk?}
|
||||
\begin{itemize}
|
||||
\item an initiative for free, cost-free and open, wireless networks
|
||||
\item everyone may take part in freifunk as client, provider or both
|
||||
\item WiFi routers are access points to the freifunk network
|
||||
\item freifunk is available in many places (Berlin, Wien, Augsburg, Lübeck, Kiel, Rheinland, Hamburg...)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%3
|
||||
\begin{frame}{What is freifunk?}
|
||||
\textbf{Free} means
|
||||
\begin{itemize}
|
||||
\item pubic - accessible by everyone
|
||||
\item non-commercial
|
||||
\item community owned
|
||||
\item net neutrality - no manipulation of any data stream
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%4
|
||||
\begin{frame}{History}
|
||||
\begin{itemize}
|
||||
\item in the early 2000s the fibre optic network in Berlin-Friedrichshain caused a demand for affordable broadband access
|
||||
\item Linksys WRT54g --> Harald Welte gpl-violations.org --> OpenWRT (Jan. 2004)
|
||||
\item development of various meshing protocols (OLSR, B.A.T.M.A.N., 802.11s...)
|
||||
\end{itemize}
|
||||
\begin{center}
|
||||
The combination of these three aspects resulted in the demand and the technical prerequesits for freifunk
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%5
|
||||
\begin{frame}{How to access the Internet}
|
||||
\includegraphics[height=180pt]{Bilder/Knotenanbindung_en}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%6
|
||||
\begin{frame}{Project Goals}
|
||||
\begin{itemize}
|
||||
\item spreading open wireless networks
|
||||
\item minimize access barriers to the net
|
||||
\item push people's sensitivity on freedom of information
|
||||
\item enable people to build their own networks
|
||||
\item form and support social structures
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%7
|
||||
\begin{frame}{Demo}
|
||||
\begin{itemize}
|
||||
\item node map \href{http://knotenkarte.de/}{http://knotenkarte.de/}
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%8
|
||||
\begin{frame}{Why WiFi?}
|
||||
\begin{itemize}
|
||||
\item high data rate mobile solution
|
||||
\item hardware and maintenance are reasonably priced (router starting at \EUR{15}, energy for less than \EUR{10} p.a.)
|
||||
\item WiFi can be used where no wiring is available / too pricy
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%9
|
||||
\begin{frame}{Range}
|
||||
\begin{center}
|
||||
\includegraphics[height=180pt]{Reichweite_altona001}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%10
|
||||
\begin{frame}{Mesh}
|
||||
What is a mesh?
|
||||
\begin{itemize}
|
||||
\item self-organizing network
|
||||
\item every router is automatically part of the network
|
||||
\item hamburg.freifunk.net features the B.A.T.M.A.N.-adv. protocol
|
||||
\end{itemize}
|
||||
Two SSIDs
|
||||
\begin{itemize}
|
||||
\item freifunk access: hamburg.freifunk.net
|
||||
\item mashing (adhoc): f8:d1:11:87:52:2e
|
||||
\end{itemize}
|
||||
--> \it Demo [inSSIDer]
|
||||
\end{frame}
|
||||
|
||||
|
||||
%11
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%12
|
||||
\begin{frame}{Mesh}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=84pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=6pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=68pt, yshift=24pt] (b) {};
|
||||
\node [vertex, xshift=112pt, yshift=-20pt] (c) {};
|
||||
|
||||
\node [place, label=above:$A$] (A) {};
|
||||
\node [place, xshift=68pt, yshift=24pt, label=above:$B$] (B) {};
|
||||
\node [place, xshift=112pt, yshift=-20pt, label=right:$C$] (C) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(B) edge (C)
|
||||
(A) edge[dashed] (C);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
%13
|
||||
\begin{frame}{Network Is Growing}
|
||||
\begin{center}
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%14
|
||||
\begin{frame}{Networks Are Interconnecting}
|
||||
\begin{columns}[c]
|
||||
\begin{column}[l]{.4\textwidth}
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}
|
||||
\end{column}
|
||||
\begin{column}{0.185\textwidth}
|
||||
\begin{uncoverenv}<2->
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
|
||||
\draw[color=white] (280pt, 85pt) arc (0:0:0pt);
|
||||
\draw[color=white] (-180pt, 85pt) arc (0:0:0pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=9pt] (-110pt, 0pt) arc (270:450:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=11pt] (-110pt, 0pt) arc (270:450:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-50pt, yshift=13pt] (-110pt, 0pt) arc (270:450:2pt);
|
||||
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=21pt] (-110pt, 0pt) arc (90:270:6pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=19pt] (-110pt, 0pt) arc (90:270:4pt);
|
||||
\draw[color=outerCircleColour, thick, xshift=-9pt, yshift=17pt] (-110pt, 0pt) arc (90:270:2pt);
|
||||
|
||||
\draw[color=gray, ultra thick, xshift=-50pt, yshift=15] (-103pt, 0pt) edge[dashed] (-74pt, 0pt);
|
||||
\end{tikzpicture}
|
||||
\end{uncoverenv}
|
||||
\end{column}
|
||||
\begin{column}[r]{.5\textwidth}
|
||||
\reflectbox{
|
||||
\scalebox{0.6}[0.6]{
|
||||
\begin{tikzpicture}
|
||||
\definecolor{outerCircleColour}{RGB}{220, 0, 103}
|
||||
\definecolor{innerCircleColour}{RGB}{255, 203, 18}
|
||||
\tikzstyle{vertex}=[circle, draw, color=outerCircleColour, ultra thick, minimum size=40pt]
|
||||
\tikzstyle{place}=[circle, draw, color=innerCircleColour, fill=innerCircleColour, minimum size=7pt, inner sep=0pt]
|
||||
|
||||
\node [vertex] (a) {};
|
||||
\node [vertex, xshift=15pt, yshift=30pt] (b) {};
|
||||
\node [vertex, xshift=65pt, yshift=5pt] (c) {};
|
||||
\node [vertex, xshift=33pt, yshift=-3pt] (d) {};
|
||||
\node [vertex, xshift=85pt, yshift=-25pt] (e) {};
|
||||
\node [vertex, xshift=100pt, yshift=2pt] (f) {};
|
||||
\node [vertex, xshift=91pt, yshift=32pt] (g) {};
|
||||
\node [vertex, xshift=110pt, yshift=-52pt] (h) {};
|
||||
\node [vertex, xshift=124pt, yshift=23pt] (i) {};
|
||||
\node [vertex, xshift=134pt, yshift=-7pt] (j) {};
|
||||
\node [vertex, xshift=164pt, yshift=-14pt] (k) {};
|
||||
\node [vertex, xshift=144pt, yshift=-66pt] (l) {};
|
||||
\node [vertex, xshift=170pt, yshift=-46pt] (m) {};
|
||||
\node [vertex, xshift=201pt, yshift=-59pt] (n) {};
|
||||
|
||||
\node [place] (A) {};
|
||||
\node [place, xshift=15pt, yshift=30pt] (B) {};
|
||||
\node [place, xshift=65pt, yshift=5pt] (C) {};
|
||||
\node [place, xshift=33pt, yshift=-3pt] (D) {};
|
||||
\node [place, xshift=85pt, yshift=-25pt] (E) {};
|
||||
\node [place, xshift=100pt, yshift=2pt] (F) {};
|
||||
\node [place, xshift=91pt, yshift=32pt] (G) {};
|
||||
\node [place, xshift=110pt, yshift=-52pt] (H) {};
|
||||
\node [place, xshift=124pt, yshift=23pt] (I) {};
|
||||
\node [place, xshift=134pt, yshift=-7pt] (J) {};
|
||||
\node [place, xshift=164pt, yshift=-14pt] (K) {};
|
||||
\node [place, xshift=144pt, yshift=-66pt] (L) {};
|
||||
\node [place, xshift=170pt, yshift=-46pt] (M) {};
|
||||
\node [place, xshift=201pt, yshift=-59pt] (N) {};
|
||||
|
||||
\path[-, thick, color=gray]
|
||||
(A) edge (B)
|
||||
(A) edge (D)
|
||||
(B) edge (D)
|
||||
(C) edge (D)
|
||||
(C) edge (E)
|
||||
(C) edge (F)
|
||||
(C) edge (G)
|
||||
(E) edge (F)
|
||||
(E) edge (H)
|
||||
(F) edge (G)
|
||||
(F) edge (I)
|
||||
(F) edge (J)
|
||||
(G) edge (I)
|
||||
(H) edge (L)
|
||||
(I) edge (J)
|
||||
(J) edge (K)
|
||||
(K) edge (M)
|
||||
(L) edge (M)
|
||||
(M) edge (N);
|
||||
\end{tikzpicture}}}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%15
|
||||
\begin{frame}{An Example in Wilhelmsburg}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.9\textwidth]{wilhelmsburg}
|
||||
\end{center}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%16
|
||||
\begin{frame}{Security}
|
||||
\begin{itemize}
|
||||
\item Since freifunk uses no password, the connection over the air is unencrypted - just like any other open network
|
||||
\item It is recommended to make use of encrypted protocols (https://, ftps://, ssh, our your own VPN) – just like anywhere else on the internet
|
||||
\item Connections to the gateways are encrypted (fastd) --> no access to the home network possible
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%17
|
||||
\begin{frame}{Störerhaftung (liability for disturbance)}
|
||||
\begin{itemize}
|
||||
\item access points do not directly route traffic into the internet
|
||||
\item a fastd encrypted connection (VPN) to the gateways is set up over the internet
|
||||
\item even the gateways do not directly drop their traffic into the internet, but VPN it abroad
|
||||
\end{itemize}
|
||||
Consequences:
|
||||
\begin{itemize}
|
||||
\item \begin{it}Advantage\end{it}: Störerhaftung cannot be enforced
|
||||
\item \begin{it}Disadvantage\end{it}: limited bandwith due to encryption effort (ca. 6Mb/s on smaller router models)
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%18
|
||||
\begin{frame}{Community Agreement}
|
||||
\begin{itemize}
|
||||
\item be fair!
|
||||
\item whatchout for your security!
|
||||
\item don't do anything unlawful!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%19
|
||||
\begin{frame}{Devices}
|
||||
Hardware requirement for Hamburg's freifunk software
|
||||
\begin{itemize}
|
||||
\item supporting OpenWRT \begin{it}Attitude Adjustment\end{it}
|
||||
\item 4 MB flash, 32 MB RAM
|
||||
\item It is highly recommended to use routers w/ a current Atheros wireless chip (ath9k-drive, 802.11n-enabled) - they support meshing very well
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
|
||||
%20
|
||||
\begin{frame}{Devices}
|
||||
\begin{columns}[c]
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{itemize}
|
||||
\item TP-Link 741nd (starting at \EUR{15})
|
||||
\item TP-Link 841nd
|
||||
\item TP-Link 842nd (starting at \EUR{25})
|
||||
\begin{itemize}
|
||||
\item Atheros AR7241 SOC
|
||||
\item 8 MB flash
|
||||
\item 32MB RAM
|
||||
\item 300Mbit/s
|
||||
\end{itemize}
|
||||
\item TP-Link 1043nd
|
||||
\item TP-Link 3600
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[height=150pt]{741nd}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%21
|
||||
\begin{frame}{Services}
|
||||
Implemented
|
||||
\begin{itemize}
|
||||
\item internet
|
||||
\item city-wide intranet (IPv4 \& IPv6)
|
||||
\end{itemize}
|
||||
Partially Implemented
|
||||
\begin{itemize}
|
||||
\item IC-VPN, Chaos-VPN, DN42...
|
||||
\end{itemize}
|
||||
Yet to Be Implemented
|
||||
\begin{itemize}
|
||||
\item DNS (for the intranet)
|
||||
\item voice over IP (SIP)
|
||||
\item anythign else you would like to offer...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%22
|
||||
\begin{frame}{Network topology}
|
||||
Currently five gateways / DHCP-servers
|
||||
|
||||
Intranet IP ranges
|
||||
\begin{itemize}
|
||||
\item v4 RFC 1918 range: 10.112.0.0/16
|
||||
\item v6 Unique Local Unicast range: fd51:2bb2:fd0d::/48
|
||||
\end{itemize}
|
||||
VPN tunnel to \href{https://www.mullvad.net/}{https://www.mullvad.net/}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%23
|
||||
\begin{frame}{Demo}
|
||||
\begin{itemize}
|
||||
\item Checking out / OpenWRT \it Attitude Adjustment
|
||||
\item Node statistics at \href{http://www.ohrensessel.net/ffhh/}{http://www.ohrensessel.net/ffhh/}
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%24
|
||||
\begin{frame}{Outlook}
|
||||
\begin{itemize}
|
||||
\item increasing number of access points in cafés, restaurants, etc.
|
||||
\item cooperations w/ the city of Hamburg (WiFi in parks, tourism...)
|
||||
\item cooperation w/ public transportation (HVV)
|
||||
\item universities, student union
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%25
|
||||
\begin{frame}{Projects}
|
||||
\begin{itemize}
|
||||
\item customizing antennas
|
||||
\item outdoor housings
|
||||
\item solar-powered routers
|
||||
\item flash workshops
|
||||
\item PPPoE
|
||||
\item private wireless network
|
||||
\item uplink over wireless
|
||||
\item remote monitoring and updates of nodes
|
||||
\item setting up a mail server on srv01
|
||||
\item form to alter your own router settings in the DB
|
||||
\item ...
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%26
|
||||
\begin{frame}{How Can I Participate?}
|
||||
\begin{itemize}
|
||||
\item freifunk is open to everyone - no technical expertise required
|
||||
\item become part of the network by setting up a router
|
||||
\item meet up Monday's at 19:00 at the CCCHH
|
||||
\item promote the idea!
|
||||
\end{itemize}
|
||||
\end{frame}
|
||||
|
||||
|
||||
%27
|
||||
\begin{frame}{Thatks for Your Attention!}
|
||||
\begin{columns}
|
||||
\begin{column}{0.6\textwidth}
|
||||
\begin{itemize}
|
||||
\item web hamburg.freifunk.net
|
||||
\item mail: kontakt@hamburg.freifunk.net
|
||||
\end{itemize}
|
||||
\end{column}
|
||||
\begin{column}{0.5\textwidth}
|
||||
\begin{center}
|
||||
\includegraphics[width=0.5\textwidth]{cc-by}
|
||||
\end{center}
|
||||
\end{column}
|
||||
\end{columns}
|
||||
\end{frame}
|
||||
|
||||
\end{document}
|
||||
BIN
Antennenvortrag.odp
Normal file
BIN
Antennenvortrag.odp
Normal file
Binary file not shown.
BIN
Bilder/Knotenanbindung2.png
Normal file
BIN
Bilder/Knotenanbindung2.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 199 KiB |
BIN
Bilder/Knotenanbindung_en.png
Normal file
BIN
Bilder/Knotenanbindung_en.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 197 KiB |
BIN
Freifunk_Knotenanbindung.png
Normal file
BIN
Freifunk_Knotenanbindung.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 87 KiB |
BIN
Reichweite_altona001.png
Normal file
BIN
Reichweite_altona001.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 705 KiB |
BIN
background.png
Executable file
BIN
background.png
Executable file
Binary file not shown.
|
After Width: | Height: | Size: 38 KiB |
75
beamerthemeintridea.sty
Executable file
75
beamerthemeintridea.sty
Executable file
|
|
@ -0,0 +1,75 @@
|
|||
\usetheme{default}
|
||||
\useoutertheme{default}
|
||||
\useinnertheme{circles}
|
||||
\usefonttheme{professionalfonts}
|
||||
|
||||
%%% For xelatex on Mac
|
||||
%%\usepackage{fontspec}
|
||||
%%\usepackage{xunicode}
|
||||
%%\usepackage{xltxtra}
|
||||
%%\setmainfont{Gill Sans}
|
||||
%%\setmonofont[Scale=0.86]{Andale Mono}
|
||||
|
||||
%%% For pdflatex
|
||||
%%\renewcommand\sfdefault{phv}
|
||||
%%\renewcommand\familydefault{\sfdefault}
|
||||
%%\usepackage{texnansi}
|
||||
%%\usepackage{marvosym}
|
||||
|
||||
%\setbeamerfont{title}{size={\fontsize{48}{52}}}
|
||||
\setbeamerfont{title}{size=\Huge}
|
||||
\setbeamerfont{frametitle}{size=\large,series=\bfseries}
|
||||
\setbeamerfont{copyright in head/foot}{size=\Tiny}
|
||||
\setbeamerfont{framenumber in head/foot}{size=\Tiny}
|
||||
|
||||
\setbeamertemplate{background canvas}{\includegraphics[width=\paperwidth,height=\paperheight]{background.png}}
|
||||
|
||||
|
||||
%\definecolor{hintergrundgrau}{HTML}{FFFFFF}
|
||||
%\definecolor{schrifthaupt}{HTML}{333000}
|
||||
\definecolor{ffyellow}{RGB}{255, 203, 18}
|
||||
|
||||
% \setbeamercolor{background canvas}{bg=hintergrundgrau}
|
||||
|
||||
\setbeamertemplate{frametitle}[default][left]
|
||||
\setbeamertemplate{navigation symbols}{} %no nav symbols
|
||||
|
||||
|
||||
|
||||
\usepackage{color}
|
||||
\usecolortheme[RGB={37,37,37}]{structure}
|
||||
\setbeamercolor{normal text}{fg=black}
|
||||
%\setbeamercolor{copyright in head/foot}{fg=gray}
|
||||
\setbeamercolor{framenumber in head/foot}{fg=ffyellow}
|
||||
|
||||
|
||||
\setbeamertemplate{headline}{
|
||||
\leavevmode
|
||||
|
||||
}
|
||||
|
||||
|
||||
\setbeamertemplate{frametitle} {
|
||||
\vskip 7ex
|
||||
\leavevmode
|
||||
\hbox{%
|
||||
\begin{beamercolorbox}[wd=\paperwidth,ht=1.8ex,dp=1ex]{frametitle}%
|
||||
\hspace*{2ex}\small\insertframetitle
|
||||
\end{beamercolorbox}
|
||||
}%
|
||||
}
|
||||
|
||||
|
||||
|
||||
\defbeamertemplate*{footline}{infolines theme}
|
||||
{
|
||||
\leavevmode%
|
||||
\hbox{%
|
||||
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=2ex,center]{copyright in head/foot}%
|
||||
\end{beamercolorbox}%
|
||||
% \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=2ex,right]{framenumber in head/foot}%
|
||||
\begin{beamercolorbox}[wd=.5\paperwidth, ht=2.25ex, dp=9pt, right]{framenumber in head/foot}%
|
||||
\usebeamerfont{framenumber in head/foot}\insertframenumber{} / \inserttotalframenumber\hspace*{5ex}
|
||||
\end{beamercolorbox}}%
|
||||
\vskip0pt%
|
||||
}
|
||||
BIN
knotengraph.png
Normal file
BIN
knotengraph.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 1.3 MiB |
BIN
knotenkarte.png
Normal file
BIN
knotenkarte.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 1.1 MiB |
BIN
wilhelmsburg.png
Normal file
BIN
wilhelmsburg.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 270 KiB |
Loading…
Reference in a new issue