Multiple GRE tunnels?

boon.lim · ‎06-29-2010

Can a Cisco router at the remote site established 2 GRE tunnels, one to each host site. So host A will communicate with the remote site via tunnel A. If host A is gone, host B will communicate with remote site via tunnel B. The sites will be running EIGRP or BGP.

There will be multiple remote sites, trying to develope a "high availability" GRE tunnel solution for the remote sites.

Edison Ortiz · ‎06-29-2010

Yes, you can have 2 GRE tunnels up at the same time.

Traffic flow preference will have to be manipulated with the dynamic routing protocol of choice.

With EIGRP, you can use bandwidth or delay metrics.

With BGP, there is a large number of options - local pref, weight, as-path prepend, etc.

Regards,

Edison