Hi everyone, I'm simply configuring a WAN failover solution between 2 routers.
I have 2 7206VXR routers. Each WAN connection comes from the same ISP. I have HSRP running successfully inside, but need some clarification on the WAN side in terms of BGP failover if one interface or router fails. As a test I'm announcing the same /24 block on each router, lets say 192.168.1.0 for this example.
RTRA's BGP configuration is a normal BGP configuration. RTRB's configuration is identical, but I have prepended the as-path using a route-map, and applied it to the neighbor statement outbound.
For example, in RTRB
route-map prepend permit 10
set as-path prepend 123 123 (where 123 is my AS example in both routers)
Will this configuration give me the desired effect? i.e. forcing the ISP to route this block to RTRA, unless of course it's not available?
Thanks in advance.