I have 2 locations that are connected with a T1 using 3640's. These locations used to be connected with VPN using a Cisco 520 at the head end and a 506 at the satellite location.
We went with a dedicated T1 but I would like to use the VPN for failover and I want it to be dynamic. I tried using floating statics at our Nortel L3 core but that did not work when the T1 went down in the cloud but still showed up as up/up in the routers.
I was thinking of using a routing protocol on the WAN and then a static with a higher cost that pointed to the Cisco Pix if the T1 went down. I need to know 1) will this work and 2) what is the best routing protocol? Currently I am using static routing. I was leaning towards EIGRP but I am being pushed to use OSPF. I think that OSPF is a bit overkill for only 2 locations. Note: the ip schema is 10.100.x.x at location 1 and 10.130.x.x at location 2.