diff --git a/files/interfaces-troisdorf7 b/files/interfaces-troisdorf7
index a17ba81..5631d94 100644
--- a/files/interfaces-troisdorf7
+++ b/files/interfaces-troisdorf7
@@ -9,13 +9,13 @@ iface lo inet loopback
         up ip address add 185.66.193.107/32 dev lo
 
 iface lo inet6 loopback
-	up ip address add 2a03:2260:121:7000::105/52 dev lo
+	up ip address add 2a03:2260:121:7000::107/52 dev lo
 
 
 # The primary network interface
 allow-hotplug eth0
 iface eth0 inet static
-        address 212.83.154.70
+        address 212.129.50.141
         netmask 255.255.255.255
         gateway 163.172.210.1
         pointopoint 163.172.210.1
@@ -27,7 +27,7 @@ iface eth0 inet static
         post-up iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
 auto 6to4
         iface 6to4 inet6 6to4
-        local 163.172.194.197
+        local 212.129.50.141
 
 # GRE Tunnel zum Rheinland Backbone
 # - Die Konfigurationsdaten werden vom Rheinland Backbone vergeben und zugewiesen
@@ -37,7 +37,7 @@ auto gre-bb-a.ak.ber
 iface gre-bb-a.ak.ber inet static
         address 100.64.6.25
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.195.0 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.195.0 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400
@@ -54,7 +54,7 @@ auto gre-bb-b.ak.ber
 iface gre-bb-b.ak.ber inet static
         address 100.64.6.31
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.195.1 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.195.1 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400
@@ -72,7 +72,7 @@ auto gre-bb-a.ix.dus
 iface gre-bb-a.ix.dus inet static
         address 100.64.6.29
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.193.0 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.193.0 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400
@@ -90,7 +90,7 @@ auto gre-bb-b.ix.dus
 iface gre-bb-b.ix.dus inet static
         address 100.64.6.35
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.193.1 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.193.1 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400
@@ -107,7 +107,7 @@ auto gre-bb-a.fra3.f
 iface gre-bb-a.fra3.f inet static
         address 100.64.6.27
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.194.0 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.194.0 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400
@@ -125,7 +125,7 @@ auto gre-bb-b.fra3.f
 iface gre-bb-b.fra3.f inet static
         address 100.64.6.33
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 163.172.194.197 remote 185.66.194.1 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 212.129.50.141 remote 185.66.194.1 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107
         post-up iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN -o $IFACE -j TCPMSS --set-mss 1312
         post-up ip link set $IFACE mtu 1400