I have our FWSM setup with the MSFC on the inside. I have an outside interface (0) and a inside interface (100).
I need to add an additional interface for a internal department. I created a VLAN on the 6513 and presented it to the FWSM. I defined that interface on the FWSM with an IP address and a security level of (80). Its working but I looked at it and started thinking.
On the additional internal interfaces using the MSFC on the inside approach. Should I be defining them as interfaces with IP address on the 6513 or just creating the VLAN on the 6513. Not sure if I'm stating this clearly.