Hi,

i have 3 branch office connected to vpn concetrator. Now all work good.

I have to implement other vpn tunnel between two router (router-1 and router-2) like a backup tunnel if principal link failure.

SEE PICTURE in ATTACH

I think that i have to implement a dynamic rountin with OSPF.

Can you help me with any information or suggest it the best solution.

I woulk like to implemente link with yellow color.

Thanks