diff --git a/templates/etc/radvd.conf.erb b/templates/etc/radvd.conf.erb
index 50cffde..0932dac 100644
--- a/templates/etc/radvd.conf.erb
+++ b/templates/etc/radvd.conf.erb
@@ -7,6 +7,9 @@ interface br-ffhh
 
  prefix fd51:2bb2:fd0d::/64 {
  };
+ prefix 2001:bf7:180::/64 {
+ };
+
 
  RDNSS <%= @own_ipv6 %> {
  };