Got a question about configuring a secondary IP on an interface. First a little background on the question.
I have a 3620 routing between our 2 subnets. The interface FA0/1 on 3620 configured with 10.0.4.2 connected to a 3660 fa0/1 10.0.4.1. 3660 connected to several subnets 5x and 6x
I need to route from our 1x corporate subnet to a 6x subnet. I was using the 3620 fa0/1 interface in my route statement to get me from 1x to 6x but the firewall handling the 6x subnet was dropping them because it perceived them as spoofed.
My question - if I created a secondary IP on the 3620 interface in the 6x subnet range, would that resolve this issue?
Thanks - hope this was presented with enough clarity.