Hello Peeps!
So I have 2 cisco routers setup, one is our edge router that just forwards on traffic to our firewall. I am looking to switch our edge router out with a palo alto device, for ease of setup I used the same IP address as the old cisco router, that way I wouldn't have to update policies on the firewall etc.
The problem is, the firewall doesn't detect that the equipment has changed when I unplug the cisco router, and plug in the palo alto with the same IP. I am trying to avoid having to reboot the firewall, but I am not sure why it's not picking up that the old link went down, and that a new piece of equipment took it's place.
I feel like it's something simple I am missing... but there is no connectivity between the two devices, and then I switch them back and everything works fine.