Using vpn over adsl as fault tolerance for existing site link. Cisco 1841.
Posted on 2007-11-28
I have an interesting problem I hope someone can advise on.
Two sites (172.16.0.0,172.17.0.0) Currently linked over IP by a third parties trunk link, using an ethernet port on each of the cisco 1841s. Using standard private routing, no nat/vpn etc.
The 1841's also have adsl wics supplying internet access to the two sites.
The trunk link occasionally goes down. I would like to configure a VPN connection between the adsl wics to take over automatically should any point on trunk link go down.
Is this possible?