hosts: use static mac for vswitch

hosts/nas/hardware-configuration.nix

@@ -185,6 +185,8 @@
                     vlan = 100;
                 };
             };
+        };
+    };
     useDHCP = false;                        # Deprecated
     hostName = "nas";
     domain = "home.opel-online.de";
@@ -194,12 +196,6 @@
     timeServers = [
         "192.168.2.1"
     ];
-    vlans = {
-        vlan100 = {
-            id = 100;
-            interface = "enp0s31f6";
-        };
-    };
     interfaces = {
 #      enp0s31f6 = {
 #        useDHCP = true;                     # For versatility sake, manually edit IP on nm-applet.
@@ -212,12 +208,14 @@
 #            prefixLength = 64;
 #        } ];
       };
-      lo1.useDHCP = true;
+      lo1 = {
+        useDHCP = true;
+        #macAddress = "";
+      };
     };
 #    defaultGateway = "45.142.114.1";
     defaultGateway6 = {
       address = "fe80::1";
-      #interface = "enp0s31f6";
       interface = "lo1";
     };
 #    nameservers = [ "9.9.9.9" "2620:fe::fe" ];