diff --git a/fe-fre-3.komreg.net/overlay/etc/interfaces.d/eth0_ipv6.cfg b/fe-fre-3.komreg.net/overlay/etc/interfaces.d/eth0_ipv6.cfg
new file mode 100644
index 00000000..4bf1fa47
--- /dev/null
+++ b/fe-fre-3.komreg.net/overlay/etc/interfaces.d/eth0_ipv6.cfg
@@ -0,0 +1,7 @@
+# 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
diff --git a/fe-fre-3.komreg.net/overlay/etc/netplan/99-static-ipv6.yaml b/fe-fre-3.komreg.net/overlay/etc/netplan/99-static-ipv6.yaml
deleted file mode 100644
index bdb5e39e..00000000
--- a/fe-fre-3.komreg.net/overlay/etc/netplan/99-static-ipv6.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-network:
-   version: 2
-   ethernets:
-      eth0:
-         addresses:
-         - 2001:6b0:64:2::165/64
-         gateway6: 2001:6b0:64:2::1
-         match:
-            name: eth0