enable Bouygues IPv6

systems/LoutreOS/configuration.nix

@@ -23,6 +23,8 @@
     supportedFilesystems = [ "zfs" ];
 
     tmp.useTmpfs = true;
+
+    kernel.sysctl."net.ipv6.conf.all.forwarding" = true;
   };
 
   documentation.nixos.enable = false;
@@ -88,6 +90,7 @@
     };
 
     firewall = {
+      enable = true;
       allowedTCPPorts = [ 80 443 ];
       allowedUDPPorts = [ ];
       interfaces.eno2 = {
@@ -101,7 +104,11 @@
           3483 # Slimserver
         ];
       };
-      enable = true;
+      extraCommands = ''
+        ip6tables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
+        ip6tables -A FORWARD -j ACCEPT -i eno2
+        ip6tables -A FORWARD -j nixos-fw-log-refuse
+      '';
     };
   };
 
@@ -118,6 +125,12 @@
         IPv6AcceptRA = "yes";
       };
     };
+    "40-eno2" = {
+      networkConfig = {
+        IPv6SendRA = "yes";
+        DHCPPrefixDelegation = "yes";
+      };
+    };
     "40-enp0s21u2".dhcpV4Config.RouteMetric = 1024;
   };