I have an existing multi-site MPLS network that we are in the process of dismantling. Individual circuits are being placed in each site, with a Cisco ASA at the edge of each site. Models vary based on site size. As sites come online with the individual circuits, I hope to create a VPN tunnel from each branch site to the main site. During the dismantling process, the MPLS network will stay in place, effectively creating two ways out of each site.
What I am looking to do is reroute traffic from the MPLS network (which uses EIGRP to announce routes) over the VPN tunnels, as each of these branch sites come online. Rather than having internal traffic route over the MPLS, as it knows that route to be available, I want the branch site's traffic to use the VPN tunnel.
Cisco switches at the edge of the branch sites typically have EIGRP running, and I can see all of the learned routes in their routing tables. Can I simply specify a route for the networks I am interested in diverting to the VPN tunnel to overwrite the Dynamic route with a Static route?
If there are more questions, please ask, and I'll do my best to answer. I know Cisco, but I'm not a Cisco guy.