Trying to load balance 2 DMVPN tunnels from one remote router back to our headquarters site. The remote router is a 2811 running 12.4.24. It has two DSL connections and I have built two DMVPN tunnels back to my headquarters site with each tunnel going to a seperate router. I am running EIGRP across the WAN and LAN. Please see attached drawing.
When I set two equal default routes and simply let EIGRP do the balancing the router favors the 126.96.36.199 route and very little traffic goes across the 188.8.131.52 route.
The reason I am trying this is because this site is in kind of a remote area and I can only get a 500KB up and 1.5MB down DSL circuit. So to boost performance a little I wanted to try running two circuits.
I am open to any suggestions or hints on how to get a little more bandwidth to this site.
Thanks in advance.
EIGRP metrics are determined by Delay, Bandwidth, Reliability and Load. You have the same router, same tunnel interface. All interfaces involved in eigrp need to match exactly the same if you want to load balance across it. See how the composite metrics are different below. If you can make them match your traffic will load balance.