I have a site with three WAN connections and three routers. The first two are T-3’s and should be load balanced while they are in use. The third is a slow 3g connection that is only used to provide some basic data connectivity. I am implementing GLBP for the all three routers but how should I incorporate the third router in the GLBP group? The way I understand GLBP is that all three will become an AFV and send traffic which is not the desired result. I want the two primary connections to be load balanced; if one of the primary connections were to fail I still want all the traffic to go over the remaining T3. The only time traffic should go over the third link is when both routers have failed. If have the load sharing and redundancy working for the two primary routers but don’t know how to configure the third. Is this possible with GLBP?
I have this problem too.