From 2ab67e4cff78ecf6c7f38d55838886033fe57520 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Sun, 22 Apr 2018 13:35:08 +0200
Subject: nat on bragi

---
 bragi.nix | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 50 insertions(+), 11 deletions(-)

diff --git a/bragi.nix b/bragi.nix
index c490e6b6..2e66e504 100644
--- a/bragi.nix
+++ b/bragi.nix
@@ -43,15 +43,22 @@ in rec {
     };
 
     interfaces.eth = {
-      proxyARP = true;
       useDHCP = false;
+      ipv4.addresses = [
+        { address = "10.141.4.1"; prefixLength = 24; }
+      ];
     };
-    
+
     interfaces.wlp4s0 = {
-      proxyARP = true;
       useDHCP = true;
     };
 
+    nat = {
+      enable = true;
+      externalInterface = "wlp4s0";
+      internalInterfaces = [ "eth" ];
+    };
+    
     firewall.enable = false;
 
     defaultMailServer = {
@@ -62,14 +69,46 @@ in rec {
     };
   };
 
-  systemd.services."dhcp-helper" = {
-    serviceConfig = {
-      ExecStart = ''
-        ${pkgs.callPackage ./custom/dhcp-helper.nix {}}/bin/dhcp-helper -b wlp4s0 -n
-      '';
-    };
-  
-    wantedBy = [ "network.target" ];
+  services.radvd = {
+    enable = true;
+    config = ''
+      interface eth {
+        AdvSendAdvert on;
+        MinRtrAdvInterval 3;
+        MaxRtrAdvInterval 10;
+
+        prefix ffff:ffff:ffff:ffff::/64 {
+          Base6Interface eth;
+
+          AdvOnLink on;
+          AdvAutonomous on;
+          # AdvRouterAddr on;
+        };
+      };
+      
+      interface wlp4s0 {
+        AdvSendAdvert on;
+        MinRtrAdvInterval 3;
+        MaxRtrAdvInterval 10;
+
+        prefix ffff:ffff:ffff:ffff::/64 {
+          Base6Interface eth;
+
+          AdvOnLink on;
+          AdvAutonomous on;
+          # AdvRouterAddr on;
+        };
+      };
+    '';
+  };
+
+  services.dhcpcd = {
+    enable = true;
+    extraConfig = ''
+      interface wlp4s0
+        ipv6rs
+        ia_pd 1/::/64 eth/0/64
+    '';
   };
 
   nixpkgs = {
-- 
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