regular - ordinary type specBroadcast - for switches that support VLANs as a set of ports and only as a broadcast domain: broadcast frames do not cross VLAN's bounders, but unicast frames may be transmitted between different VLANs. Permits passing of broadcast frames between Vgate's VLANs. specArpReq - for switches that support VLANs as a set of ports and only as a broadcast domain: broadcast frames do not cross VLAN's bounders, but unicast frames may be transmitted between different VLANs. Permits passing of ARP request frames between Vgate's VLANs. specBroadcastAndUnicast - for switches that support VLANs as a set of ports but no frame crosses VLAN's bounders. Permits passing of IP/ARP request broadcast and IP unicast frames between Vgate's VLANs. specArpReqAndUnicast - for switches that support VLANs as a set of ports but no frame crosses VLAN's bounders. Permits passing of ARP request broadcast and IP unicast frames between Vgate's VLANs. This type can be used only for IP VLANs.