Main office has 2 ISP's, branch office has 2 ISP's. Need BOVPN to failover/failback.
Main office has 2 ISP's, branch office has 2 ISP's. Both are set in failover mode. I previously setup a BOVPN with 1 Gateway and 1 Tunnel to link the two offices. Recently, the main office's primary ISP has been failing due to storms in the area. While users are still able to work since the Firebox flips to the backup ISP, the VPN goes down and the branch office can no longer access the shares at the main office. How would I setup redundant VPN connections at both offices?