Hi,
The subject is not very clear, but let me explain what I would like to try to achieve.
Because of content filtering purpose I redirect all the traffic from our branches to our HQ through a VPN tunnel. This is working well, but I need a kind of disaster recovery plan, in case my HQ goes down. Indeed, by redirecting all my traffic to my HQ, if my HQ goes down the VPN will go down and then my branch offices won't even be able to go to the Internet.
What I would like to do is: If the VPN tunnel is up between Site A and the HQ, then redirect all traffic to the HQ if the VPN tunnel is down, then route traffic to the outside interface, and allow my user at least to access the Internet
Thanks for your help