diff --git a/README.md b/README.md
index a09c29d..790a100 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Please see [the official Gluon repository](https://github.com/freifunk-gluon/glu
 
 #### Gluon versions used for specific Hamburg Freifunk Firmware builds
 
+- 0.5.1: v2014.3.1
 - 0.5: v2014.3
 - 0.4.2: v2014.2
  - note: no gluon fork used anymore
diff --git a/site.conf b/site.conf
index e21b9f8..bcd30bc 100644
--- a/site.conf
+++ b/site.conf
@@ -8,7 +8,7 @@
 
 	timezone = 'CET-1CEST,M3.5.0,M10.5.0/3', -- Europe/Berlin
 	ntp_servers = {'1.ntp.services.ffhh','2.ntp.services.ffhh'},
-	opkg_repo = 'http://opkg.services.ffki/attitude_adjustment/12.09/%S/packages', -- ffki ipv6 mirror
+	opkg_repo = 'http://opkg.services.ffhh/attitude_adjustment/12.09/%S/packages',
 	regdom = 'DE',
 
 	wifi24 = {
@@ -36,6 +36,7 @@
 	},
 
 	fastd_mesh_vpn = {
+		enabled = true,
 		methods = {'salsa2012+gmac'},
 		mtu = 1426,
 		backbone = {
diff --git a/site.mk b/site.mk
index 072cd29..b57efa6 100644
--- a/site.mk
+++ b/site.mk
@@ -19,7 +19,7 @@ GLUON_SITE_PACKAGES := \
 	haveged
 
 
-DEFAULT_GLUON_RELEASE := 0.5
+DEFAULT_GLUON_RELEASE := 0.5.1
 
 # Allow overriding the release number from the command line
 GLUON_RELEASE ?= $(DEFAULT_GLUON_RELEASE)