diff --git a/fe-fre-3.komreg.net/overlay/etc/network/interfaces.d/eth0_ipv6.cfg b/fe-fre-3.komreg.net/overlay/etc/network/interfaces.d/eth0_ipv6.cfg
deleted file mode 100644
index 4bf1fa47..00000000
--- a/fe-fre-3.komreg.net/overlay/etc/network/interfaces.d/eth0_ipv6.cfg
+++ /dev/null
@@ -1,7 +0,0 @@
-# maintained in cosmos
-#
-iface eth0 inet6 static
-      address 2001:6b0:64:2::165
-      netmask 64
-      gateway 2001:6b0:64:2::1
-      
\ No newline at end of file