I have two 3825 routers which seem to run glbp fine, however, I could not communicate to the 3750 switch behind the routers after implementing glbp. HSRP seems to work just fine. Is that what you meant by glbp is not supported on the 3750? If not, does anyone have an idea why implementing glbp on the routers would break connectivity to the switch? (Note, I can ping the routers from the switch. Just not thru the routers to the switch. GLBP showed everything active/active).
thanks
