diff --git a/files/interfaces-troisdorf2 b/files/interfaces-troisdorf2
index ca6ce3b..cafe075 100644
--- a/files/interfaces-troisdorf2
+++ b/files/interfaces-troisdorf2
@@ -66,7 +66,7 @@ iface gre-bb-b.ak.ber inet6 static
 # Duesseldorf Router A
 auto gre-bb-a.ix.dus
 iface gre-bb-a.ix.dus inet static
-        address 100.64.6.27
+        address 100.64.6.29
         netmask 255.255.255.254
         pre-up ip tunnel add $IFACE mode gre local 	163.172.28.228 remote 185.66.193.0 ttl 255
         post-up iptables -t nat -A POSTROUTING -o $IFACE -j SNAT --to-source 185.66.193.107