WIP: router: attempt timer to restart networkd every minute

hosts/router/default.nix

@@ -50,6 +50,7 @@ let
       addr4 = "192.168.1.61";
       addr4Sized = "${addr4}/24";
       gw4 = "192.168.1.254";
+      gw6 = "fe80::e21f:2bff:fe96:e952";
     };
     lan = mkIfConfig {
       name_ = "lan";
@@ -325,6 +326,7 @@ in
       duid
       ipv6only
       nohook resolv.conf, yp, hostname, ntp
+      nogateway
       option rapid_commit
 
       # this doesn't play well with networkd
@@ -336,7 +338,7 @@ in
       # request the leases just for routing (so that the att box knows we're here)
       # actual ip assignments are static, based on $pdFromWan
       ia_pd 1/${ifs.lan.net6} -
-      ia_pd 10/${ifs.lan10.net6} -
+      # ia_pd 10/${ifs.lan10.net6} -
       # ia_pd 20/${pdFromWan}d::/64 -  # for opnsense (legacy services)
       ia_pd 30/${ifs.lan30.net6} -
       ia_pd 40/${ifs.lan40.net6} -
@@ -345,6 +347,30 @@ in
       # ia_pd 8 -
   '';
 
+  systemd.timers."restart-networkd" = {
+
+  };
+
+  systemd.timers."restart-networkd" = {
+    wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnBootSec = "1m";
+        OnUnitActiveSec = "1m";
+        Unit = "restart-networkd.service";
+      };
+  };
+
+  systemd.services."restart-networkd" = {
+    script = ''
+      set -eu
+      ${pkgs.systemd}/bin/systemctl restart systemd-networkd
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "root";
+    };
+  };
+
   networking.useNetworkd = true;
   systemd.network.enable = true;
   systemd.network = {
@@ -369,7 +395,7 @@ in
     };
 
     netdevs = {
-      "10-vlan10" = mkVlanDev { id = 10; name = ifs.lan10.name; };
+      # "10-vlan10" = mkVlanDev { id = 10; name = ifs.lan10.name; };
       "10-vlan20" = mkVlanDev { id = 20; name = ifs.lan20.name; };
       "10-vlan30" = mkVlanDev { id = 30; name = ifs.lan30.name; };
       "10-vlan40" = mkVlanDev { id = 40; name = ifs.lan40.name; };
@@ -387,13 +413,16 @@ in
           Address = [ ifs.wan.addr4Sized ];
           IPv6AcceptRA = false;
         };
-        routes = [ { Gateway = ifs.wan.gw4; } ];
+        routes = [
+          { Gateway = ifs.wan.gw4; }
+          { Gateway = ifs.wan.gw6; }
+        ];
         # make routing on this interface a dependency for network-online.target
         linkConfig.RequiredForOnline = "routable";
       };
       "20-lan" = (mkLanConfig ifs.lan) // {
         vlan = [
-          ifs.lan10.name
+          # ifs.lan10.name
           ifs.lan20.name
           ifs.lan30.name
           ifs.lan40.name
@@ -417,23 +446,23 @@ in
   };
 
   networking.interfaces = {
-    ${ifs.lan10.name} = {
-      ipv4.addresses = [ { address = ifs.lan10.addr4; prefixLength = ifs.lan10.p4Size; } ];
-      ipv6.addresses = [
-        {
-          address = ifs.lan10.addr6;
-          prefixLength = ifs.lan10.p6Size;
-        }
-        {
-          address = ifs.lan10.ulaAddr;
-          prefixLength = ifs.lan10.ulaSize;
-        }
-      ];
-    };
+#    ${ifs.lan10.name} = {
+#      ipv4.addresses = [ { address = ifs.lan10.addr4; prefixLength = ifs.lan10.p4Size; } ];
+#      ipv6.addresses = [
+#        {
+#          address = ifs.lan10.addr6;
+#          prefixLength = ifs.lan10.p6Size;
+#        }
+#        {
+#          address = ifs.lan10.ulaAddr;
+#          prefixLength = ifs.lan10.ulaSize;
+#        }
+#      ];
+#    };
   };
   networking.dhcpcd.allowInterfaces = [ ifs.wan.name ];
 
-  services.radvd.enable = true;
+  services.radvd.enable = false;
   services.radvd.config = ''
     interface ${ifs.lan10.name} {
       RDNSS ${ifs.lan.ulaAddr} {
@@ -609,7 +638,7 @@ in
   services.kea.dhcp4.settings = {
     interfaces-config.interfaces = [
       ifs.lan.name
-      ifs.lan10.name
+      # ifs.lan10.name
       ifs.lan20.name
       ifs.lan30.name
       ifs.lan40.name
@@ -619,7 +648,7 @@ in
     ddns-qualifying-suffix = "4.default.${ldomain}";
     subnet4 = [
       ((mkDhcp4Subnet 1 ifs.lan) // reservations.lan.v4)
-      (mkDhcp4Subnet 10 ifs.lan10)
+      # (mkDhcp4Subnet 10 ifs.lan10)
       ((mkDhcp4Subnet 20 ifs.lan20) // reservations.lan20.v4)
       (mkDhcp4Subnet 30 ifs.lan30)
       (mkDhcp4Subnet 40 ifs.lan40)
@@ -631,7 +660,7 @@ in
   services.kea.dhcp6.settings = {
     interfaces-config.interfaces = [
       ifs.lan.name
-      ifs.lan10.name
+      # ifs.lan10.name
       # ifs.lan20.name  # Managed by Att box
       ifs.lan30.name
       ifs.lan40.name
@@ -642,7 +671,7 @@ in
     ddns-qualifying-suffix = "6.default.${ldomain}";
     subnet6 = [
       ((mkDhcp6Subnet 1 ifs.lan) // reservations.lan.v6)
-      (mkDhcp6Subnet 10 ifs.lan10)
+      # (mkDhcp6Subnet 10 ifs.lan10)
       (mkDhcp6Subnet 30 ifs.lan30)
       (mkDhcp6Subnet 40 ifs.lan40)
       (mkDhcp6Subnet 50 ifs.lan50)