Configure bridge interface (802.1D)

By default all CMG/HSG interfaces are layer 3 interfaces (routed mode), hosts coming in from different interfaces have to be routed across mbox to communicate. Sometimes it’s desirable to allow them to communicate directly, eg. bridge wireless users and LAN users.

mbox support 802.D ethernet bridging, which allows hosts connected to different mbox interfaces to communicate directly, by assigning them into the same bridge. Hosts connected to the same bridge belong to the same lay-2 segment and will have same network subnet/mask.

Bridge configuration example

When configuring bridging interfaces, following conditions apply:

  • assign physical interfaces into a bridge group

  • each interface should have no IP address assigned.

  • (optional) assign IP address to the logical bridge interface


enableconfigureinterface ethnumberbridge-group bridge_group_numberinterface bridge br<bridge_group_number>ip address ip_address/prefix (no ip address ip_address/prefix)


mbox> enablembox#mbox# configurembox(config-if)# interface eth1mbox(config-if)# enablembox(config-if)# bridge-group 0mbox(config-if)# exitmbox(config)#mbox(config-if)# interface eth2mbox(config-if)# enablembox(config-if)# bridge-group 0mbox(config-if)# exitmbox(config)#mbox(config)# interface bridge br0mbox(config-if)# enablembox(config-if)# ip address exitmbox(config)#exitmbox# show interface bridge br0bridge name bridge id STP enabled interfaces-------------------------------------------------------------------------br0 8000.00900b327700 no eth0 eth2