Non-IPv4 Traffic in L2 Bridged Mode

Unsupported traffic is, by default, passed from one L2 Bridge interface to the Bridge-Partner interface. This allows the appliance to pass other traffic types, including LLC packets such as Spanning Tree, other EtherTypes, such as MPLS label switched packets (EtherType 0x8847), Appletalk (EtherType 0x809b), and the ever-popular Banyan Vines (EtherType 0xbad). These non-IPv4 packets are only passed across the Bridge, they are not inspected or controlled by the packet handler. If these traffic types are not needed or desired, the bridging behavior can be changed by enabling the Block all non-IPv4 traffic option on the Secondary Bridge Interface configuration dialog.