VPC: CS-15774 - VPC and guest networks of VPC should belong to the same zone

server/src/com/cloud/network/NetworkManagerImpl.java

@@ -2866,6 +2866,11 @@ public class NetworkManagerImpl implements NetworkManager, NetworkService, Manag
         if (networkDomain == null) {
             networkDomain = vpc.getNetworkDomain();
         }
+        
+        if (vpc.getZoneId() != zoneId) {
+            throw new InvalidParameterValueException("New network doesn't belong to vpc zone", null);
+        }
+        
         //1) Validate if network can be created for VPC
         _vpcMgr.validateGuestNtkwForVpc(_configMgr.getNetworkOffering(ntwkOffId), cidr, networkDomain, owner, vpc, null, gateway);
         //2) Create network