Add the following to /boot/loader.conf
# Netgraph
netgraph_load="YES"
ng_ether_load="YES"
ng_bridge_load="YES"
ng_vlan_load="YES"Reboot: sudo shutdown -r now
Set up our bridge:
ngctl mkpeer igc2: bridge lower link0
ngctl name igc2:lower bnet0
ngctl connect igc3: bnet0: lower link1
# a precursor to assigning IP addrs, "brouting"
ngctl connect igc2: bnet0: upper link2
ngctl connect igc3: bnet0: upper link3
# back to bridging configuration
ngctl msg igc2: setpromisc 1
ngctl msg igc2: setautosrc 0
ngctl msg igc3: setpromisc 1
ngctl msg igc3: setautosrc 0