add server to dhcp

hosts/fw.cloonar.com/modules/dhcp4.nix

@@ -59,6 +59,31 @@
             }
           ];
         }
+        {
+          pools = [
+            {
+              pool = "10.42.97.100 - 10.42.97.240";
+            }
+          ];
+          subnet = "10.42.97.0/24";
+          interface = "server";
+          option-data = [
+            {
+              name = "routers";
+              data = "10.42.97.1";
+            }
+            {
+              name = "domain-name";
+              data = "cloonar.com";
+            }
+            {
+              name = "domain-name-servers";
+              data = "10.42.97.1";
+            }
+          ];
+          reservations = [
+          ];
+        }
         {
           pools = [
             {