diff --git a/hosts/router/configuration.nix b/hosts/router/configuration.nix
index c56cc67..fe9a264 100644
--- a/hosts/router/configuration.nix
+++ b/hosts/router/configuration.nix
@@ -37,6 +37,8 @@
   networking.defaultGateway = { address = "10.42.10.25"; interface = "net-services"; };
   networking.defaultGateway6 = { address = "2a01:4f8:1c0c:8221::25"; interface = "net-services"; };
 
+  networking.firewall.checkReversePath = false;
+
   services.prometheus.exporters.node = {
     enable = true;
     listenAddress = "10.42.10.2";