I have attached a visual depiction of what we have setup. Our Site B has two paths to get to our Core for Data services. The primary path is over a T1 via MPLS to our Site A which then has a link to our core over a seperate VPN tunnel using GRE. Our issue is this. Site B networks are seen in our Core as Internal routes and are preferred over the External routes that Site A advertises into the core. Site B advertises its own network to our core over its backup tunnel and Site A advertises Site B networks over its own VPN tunnel. My question is this, if were running EIGRP 10 on all of our routers and also with the provider in MPLS, how can I change how routes appear to the core from Site B path to also be External routes? The only solution we can come up with is to use two instances of EIGRP and redistribute between each which changes the routes advertised from Site B into the core as External routes and then we get symetrical routing. Does this seem like the only solution? Help!
here it is a link:
the trick is that PE speaks EIGRP with your CE and transports EIGRP routes within MP BGP extended communities
Hope to help