troubleshooting Question

VPN failover between two identical networks?

Avatar of RPPreacher
RPPreacherFlag for United States of America asked on
NetworkingVPNCisco
4 Comments1 Solution237 ViewsLast Modified:
I have 3 networks (call them A, B, C) in three different physical locations.  Network A & B use the same IP range.  In fact, A & B are exact mirrors of one another, every server, every piece of network gear.

A range = 172.16.0.0/16
B range = 172.16.0.0/16
C range = 172.17.0.0/16

I cannot change the IP ranges due to some constraints from our CIO.

Can I set up 2 tunnels from C (one to A and one to B) and route traffic based on some routing metric?  What I want is nodes in C to communicate to A by default but fail over to B is the A network is down; however, all this happens inside a VPN tunnel.


Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 4 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 4 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros