I am designing a solution for load balancing. I have two routers to two separate ISP's. I have set up 2 static routes in EIGRP to 0.0.0.0 0.0.0.0 to the next hope addresses which are the routers (see config). I have configured variance with a multiplier of 2. The firewall interfaces are not running EIGRP. Now that I have this on paper I am seeing quite a few design issues.
Q: If there is a link loss to the ISP, how will the router (my 6513 super mod) know to remove the failed route from the routing table? Presumably therw could be a failure on the outside firewall interface and since that is not part of the EIGRP process (hello's etc.) how will the router (6513) know to stop sending packets that way?
router eigrp 1
ip route 0.0.0.0 0.0.0.0 10.30.0.1
ip route 0.0.0.0 0.0.0.0 10.30.0.2
S* 0.0.0.0/0 [1/0] via 10.30.0.2
[1/0] via 10.30.0.1