Install NixOS on Hetzner Online: Difference between revisions

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@@ Line 29: / Line 29: @@
        Gateway = fe80::1
      '';
+  };
+}
+</syntaxHighlight>
+Another possibility is to use <code>networking.interfaces</code>:
+<syntaxHighlight lang=nix>
+let
+  external-mac = "00:11:22:33:44:55";
+  ext-if = "et0";
+  external-ip = "144.x.x.x";
+  external-ip6 = "2a01:XXXX:XXXX::1";
+  external-gw6 = "fe80::1";
+  external-netmask = 27;
+  external-netmask6 = 64;
+in {
+  # rename the external interface based on the MAC of the interface
+  services.udev.extraRules = ''SUBSYSTEM=="net", ATTR{address}=="${external-mac}", NAME="${ext-if}"'';
+  networking = {
+    interfaces."${ext-if}" = {
+      ipv4.addresses = [{
+        address = external-ip;
+        prefixLength = external-netmask;
+      }];
+      ipv6.addresses = [{
+        address = external-ip6;
+        prefixLength = external-netmask6;
+      }];
+    };
+    defaultGateway6 = external-gw6;
+    defaultGateway = external-gw;
    };
 }
 </syntaxHighlight>