diff --git a/hosts/poseidon/default.nix b/hosts/poseidon/default.nix
index e650206..20b325c 100644
--- a/hosts/poseidon/default.nix
+++ b/hosts/poseidon/default.nix
@@ -21,6 +21,11 @@ in
 
   boot.supportedFilesystems = [ "btrfs" ];
 
+  boot.kernel.sysctl = {
+    "net.ipv6.conf.all.forwarding" = true;
+    "net.ipv4.ip_forward" = true;
+  };
+
   services.btrfs = {
     autoScrub = {
       enable = true;