Hello All:
We are in the middle of a migration and currently our remote site hosts point to a firewall for their default gateway. The site is just one subnet/flat LAN. We are changing that so that a newly installed router is the default gateway. The router has an interface on the same subnet/LAN as the firewall. On the router, we have a default static route point to the firewall. So, when traffic is initiated, it will hit the router first and then hairpin back out the same interface to the firewall.
When we change the default gateway to the router, the host appears to operate ok. However, after awhile (30mins or more), traffic appears to stop flowing. I've tried it with ip redirects on and off. I know I am missing something simple. Could it be that the firewall does not like part of the flow to come through the router?
Any help is much appreciated!
Thanks, Patrick