diff --git a/files/named.conf.fftdf b/files/named.conf.fftdf
deleted file mode 100644
index 0807a3e..0000000
--- a/files/named.conf.fftdf
+++ /dev/null
@@ -1,6 +0,0 @@
-zone "fftdf" {
-  type slave;
-  masters { 10.188.1.100; };
-  file "/var/lib/bind/db.fftdf";
-};
-
diff --git a/files/radvd.conf.j2 b/files/radvd.conf.j2
index 6951b8e..10737a0 100644
--- a/files/radvd.conf.j2
+++ b/files/radvd.conf.j2
@@ -3,8 +3,7 @@ interface bat0 {
         IgnoreIfMissing on;
         MaxRtrAdvInterval 200;
         RDNSS {{ sn_mesh_IPv6 }} {};
-#        prefix fda0:747e:ab29:7405::/64 {
-        prefix 2a03:2260:121::/64 {
+	prefix {{ sn_mesh_IPv6_net }} {
                 AdvOnLink on;
                 AdvAutonomous on;
                 AdvRouterAddr on;
diff --git a/files/sn_startup.exit.sh.j2 b/files/sn_startup.exit.sh.j2
index 9c44143..51ce325 100644
--- a/files/sn_startup.exit.sh.j2
+++ b/files/sn_startup.exit.sh.j2
@@ -19,11 +19,11 @@ curl -X POST --data-urlencode 'payload={"text": "{{ sn_hostname }} is rebooted",
 
 # Set mark 4 to Freifunk traffic
 /sbin/iptables -t mangle -A PREROUTING -s 10.0.0.0/8 ! -d 10.0.0.0/8 -j MARK --set-mark 4
-/sbin/ip6tables -t mangle -A PREROUTING -s 2a03:2260:121::/64 ! -d 2a03:2260:121::/64 -j MARK --set-mark 4
+/sbin/ip6tables -t mangle -A PREROUTING -s 2a03:2260:121::/48 ! -d 2a03:2260:121::/48 -j MARK --set-mark 4
 
 # All from FF IPv4 via routing table 42
 /bin/ip rule add from {{ sn_ffrl_IPv4 }}/32 lookup 42
-/bin/ip -6 rule add from  2a03:2260:121::/64 lookup 42
+/bin/ip -6 rule add from {{ sn_mesh_IPv6_net }} lookup 42
 
 # Allow MAC address spoofing
 /sbin/sysctl net.ipv4.conf.bat0.rp_filter=0