Hi, I am trying to set up a FWSM to run in transparent/multi context mode. I have followed the example configuration in the Cisco configuration guide but I cannot get traffic to pass through from the inside to outside vlans (traverse the FWSM in other words). The vlans are created and allocated from the switch with the firewall vlan-group command and the interfaces have been allocated from the admin context on the FWSM. How does the FWSM/Switch know that the two VLANs are related in the transparent setup, i.e. when a host on the inside vlan sends a packet how does the switch know it is destined for the FWSM interface. I have a feeling I am missing some config here on the switch (Bridge groups maybe?) which were not included in the configuration guide.
Can anyone please advise on this.
Thanks for looking.