I want to activate the backup route only when the normal route is not reachable. (using the priority doesn't work in my case because some traffic mount the bri even if it have lower priority)
I played with the track command but I can just deactivate the route when it is not reachable, I want to do the opposite aà²ctivate a route on a non-reachability.
See attached network-diagram
- we are using a cisco 1712 to establish a VPN to a SonicWall at our MainOffice
- in case of internet communication failure we want to mount an ISDN connection to the ISP cisco router (the sonicwall doesn't have bri interface) to reestablish the VPN to the public ip of the SonicWall.
- Using the priority on the ip route doesn't work as some ip traffic intermitenly bring the bri up.