diff --git a/common.nix b/common.nix
index 9ea74f1..d0440cc 100644
--- a/common.nix
+++ b/common.nix
@@ -67,22 +67,6 @@ in
   # allow all firmware
   hardware.enableAllFirmware = true;
 
-  # use systemd-networkd
-  networking.useDHCP = false;
-  systemd.network = {
-    enable = true;
-    networks."10-wan" = {
-      networkConfig = {
-        # start a DHCP Client for IPv4 Addressing/Routing
-        DHCP = "ipv4";
-        # accept Router Advertisements for Stateless IPv6 Autoconfiguraton (SLAAC)
-        IPv6AcceptRA = true;
-      };
-      # make routing on this interface a dependency for network-online.target
-      linkConfig.RequiredForOnline = "routable";
-    };
-  };
-
   # ensure firewall is up, allow ssh and http in
   networking.firewall.enable = true;
   networking.firewall.allowedTCPPorts = [ 22 ];
diff --git a/mini/configuration.nix b/mini/configuration.nix
index a3899a8..5210fdd 100644
--- a/mini/configuration.nix
+++ b/mini/configuration.nix
@@ -14,12 +14,21 @@
       /data/nixos/common.nix
     ];
 
-  # host name
-  networking.hostName = "mini";
-
-  # main network interface
-  systemd.network.networks."10-wan".matchConfig.Name = "eno1";
-
   # amd graphics
   hardware.opengl.extraPackages = with pkgs; [ amdvlk rocm-opencl-icd rocm-opencl-runtime ];
+
+  # use systemd-networkd, fixed IPv4, dynamic IPv6
+  networking.hostName = "mini";
+  networking.useDHCP = false;
+  networking.nameservers = [ "192.168.13.1" ];
+  systemd.network = {
+    enable = true;
+    networks."10-wan" = {
+      matchConfig.Name = "eno1";
+      address = [ "192.168.13.100/24" ];
+      routes = [ { routeConfig.Gateway = "192.168.13.1"; } ];
+      networkConfig.IPv6AcceptRA = true;
+      linkConfig.RequiredForOnline = "routable";
+    };
+  };
 }
diff --git a/neko/configuration.nix b/neko/configuration.nix
index 42c16e0..3af0537 100644
--- a/neko/configuration.nix
+++ b/neko/configuration.nix
@@ -14,12 +14,21 @@
       /data/nixos/common.nix
     ];
 
-  # host name
-  networking.hostName = "neko";
-
-  # main network interface
-  systemd.network.networks."10-wan".matchConfig.Name = "enp10s0";
-
   # intel graphics
   hardware.opengl.extraPackages = with pkgs; [ intel-media-driver intel-compute-runtime ];
+
+  # use systemd-networkd, fixed IPv4, dynamic IPv6
+  networking.hostName = "neko";
+  networking.useDHCP = false;
+  networking.nameservers = [ "192.168.13.1" ];
+  systemd.network = {
+    enable = true;
+    networks."10-wan" = {
+      matchConfig.Name = "enp10s0";
+      address = [ "192.168.13.171/24" ];
+      routes = [ { routeConfig.Gateway = "192.168.13.1"; } ];
+      networkConfig.IPv6AcceptRA = true;
+      linkConfig.RequiredForOnline = "routable";
+    };
+  };
 }