NwConstants.L3_GW_MAC_TABLE, NwConstants.INBOUND_NAPT_TABLE, vpnId, macAddress, dpnId);
// Install the flow entry in L3_GW_MAC_TABLE
String flowRef = NatUtil.getFlowRef(dpnId, NwConstants.L3_GW_MAC_TABLE, vpnId, macAddress);
NwConstants.L3_GW_MAC_TABLE, NwConstants.INBOUND_NAPT_TABLE, vpnId, macAddress, dpnId);
// Install the flow entry in L3_GW_MAC_TABLE
String flowRef = NatUtil.getFlowRef(dpnId, NwConstants.L3_GW_MAC_TABLE, vpnId, macAddress);