diff --git a/files/interfaces-troisdorf5 b/files/interfaces-troisdorf5
index 935d621..b11e134 100644
--- a/files/interfaces-troisdorf5
+++ b/files/interfaces-troisdorf5
@@ -29,7 +29,7 @@ auto gre-bb-a.ak.ber
 iface gre-bb-a.ak.ber inet static
         address 100.64.2.151
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 5.9.76.198 remote 185.66.195.0 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 138.201.54.123 remote 185.66.195.0 ttl 255
         post-up ip link set $IFACE mtu 1400
         post-down ip tunnel del $IFACE
 
@@ -42,7 +42,7 @@ auto gre-bb-b.ak.ber
 iface gre-bb-b.ak.ber inet static
         address 100.64.2.153
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 5.9.76.198 remote 185.66.195.1 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 138.201.54.123 remote 185.66.195.1 ttl 255
         post-up ip link set $IFACE mtu 1400
         post-down ip tunnel del $IFACE
 
@@ -56,7 +56,7 @@ auto gre-bb-a.ix.dus
 iface gre-bb-a.ix.dus inet static
         address 100.64.2.155
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 5.9.76.198 remote 185.66.193.0 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 138.201.54.123 remote 185.66.193.0 ttl 255
         post-up ip link set $IFACE mtu 1400
         post-down ip tunnel del $IFACE
 
@@ -70,7 +70,7 @@ auto gre-bb-b.ix.dus
 iface gre-bb-b.ix.dus inet static
         address 100.64.2.157
         netmask 255.255.255.254
-        pre-up ip tunnel add $IFACE mode gre local 5.9.76.198 remote 185.66.193.1 ttl 255
+        pre-up ip tunnel add $IFACE mode gre local 138.201.54.123 remote 185.66.193.1 ttl 255
         post-up ip link set $IFACE mtu 1400
         post-down ip tunnel del $IFACE