if vpc public network with snat enabled, then will triger this issue;

Author: sudison

server/src/com/cloud/network/router/VpcVirtualNetworkApplianceManagerImpl.java

@@ -445,7 +445,7 @@ private void createVpcAssociatePublicIPCommands(final VirtualRouter router, fina
                 String macAddress = vlanMacAddress.get(BroadcastDomainType.getValue(BroadcastDomainType.fromString(ipAddr.getVlanTag())));
 
                 IpAddressTO ip =
-                        new IpAddressTO(ipAddr.getAccountId(), ipAddr.getAddress().addr(), add, false, ipAddr.isSourceNat(), ipAddr.getVlanTag(), ipAddr.getGateway(),
+                        new IpAddressTO(ipAddr.getAccountId(), ipAddr.getAddress().addr(), add, false, ipAddr.isSourceNat(), BroadcastDomainType.fromString(ipAddr.getVlanTag()).toString(), ipAddr.getGateway(),
                                 ipAddr.getNetmask(), macAddress, networkRate, ipAddr.isOneToOneNat());
 
                 ip.setTrafficType(network.getTrafficType());