diff --git a/hosts/nonat/configuration.nix b/hosts/nonat/configuration.nix
index 2f2483d..741055c 100644
--- a/hosts/nonat/configuration.nix
+++ b/hosts/nonat/configuration.nix
@@ -13,19 +13,27 @@
   boot.loader.grub.device = "/dev/vda";
 
   networking.useDHCP = false;
-  # Network
-  networking.interfaces.ens18.ipv4.addresses = [
-    { address = "141.24.46.169"; prefixLength = 24; }
-  ];
-  networking.interfaces.ens18.ipv6.addresses = [
-    { address = "2001:638:904:ffca::6"; prefixLength = 64; }
-  ];
-  networking.defaultGateway = { address = "141.24.46.1"; interface = "ens18"; };
-  networking.defaultGateway6 = { address = "2001:638:904:ffca::1"; interface = "ens18"; };
+  systemd.network.enable = true;
 
-  networking.interfaces.ens19.ipv4.addresses = [
-    { address = "192.168.10.1"; prefixLength = 24; }
-  ];
+  systemd.network.networks."10-wan" = {
+    matchConfig.Name = "ens18";
+    address = [
+      "2001:638:904:ffca::6/64"
+      "141.24.46.169/24"
+    ];
+    routes = [
+      { Gateway = "141.24.46.1"; }
+      { Gateway = "2001:638:904:ffca::1"; }
+    ];
+    linkConfig.RequiredForOnline = "routable";
+  };
+  systemd.network.networks."10-nat-netz-mercury" = {
+    matchConfig.Name = "ens19";
+    address = [
+      "192.168.10.1/24"
+    ];
+    linkConfig.RequiredForOnline = "no";
+  };
 
   networking.nat = {
     enableIPv6 = true;