Backup/Failover IP for VPN tunnel destination
Hi all, new here.
Where I work, we have inherited a number of Firebox T35's at remote sites. They have a single WAN connection.
We have recently formed VPN tunnels back to our head office on the T35's. At our head office, we have two WAN lines. The VPN tunnel on the T35's is terminating on one of these WAN lines at our head office.
Our head office also does not use Watchguard devices and the said VPN tunnel is terminating on a 3rd party firewall at our head office..
On the T35's, how do I create a redundant/backup VPN tunnel to the other WAN line at our head office? Of course keeping routing for subnet ranges at the head office end of the tunnel working.