diff --git a/hosts/dn42-il-gw5/configuration.nix b/hosts/dn42-il-gw5/configuration.nix
index 69566ab..91a91de 100644
--- a/hosts/dn42-il-gw5/configuration.nix
+++ b/hosts/dn42-il-gw5/configuration.nix
@@ -45,6 +45,12 @@
   #ip -6 rule add from fd56:4902:eca0::/48 to all unreachable prio 20000
   #'';
 
+  networking.firewall.allowedTCPPorts = [
+    179
+  ];
+  networking.firewall.extraCommands = "ip6tables -A INPUT -p ospfigp -j ACCEPT";
+  networking.firewall.extraCommands = "iptables -A INPUT -p ospfigp -j ACCEPT";
+
   services.bird2.enable = true;
   services.bird2.config = ''
   router id ${ (lib.head config.networking.interfaces.ens18.ipv4.addresses).address };