in trying to setup a BGP link between 2 cisco routers, my coworker and i has a little disagreement. perhaps a cisco expert out here can help us clear this up:
the issue is: what ip addr should we use in the "neighbor x.x.x.x ..." line under the "router bgp xxxx" statement?
every doc i've seen (written by cisco or otherwise) use the neighbor's interface ip in the "neighbor x.x.x.x" ... my coworker insists that it's better to try to use the lo0 ip of the neighboring router.
it seems that the ip addr used in the neighbor line needs to be route-able without using igp etc. thus the neighbor's inteface's ip addr works perfectly. but to use the lo0 addr, one solution would require adding a static route.
what would be the most elegant way of doing this?
the issue is: what ip addr should we use in the "neighbor x.x.x.x ..." line under the "router bgp xxxx" statement?
every doc i've seen (written by cisco or otherwise) use the neighbor's interface ip in the "neighbor x.x.x.x" ... my coworker insists that it's better to try to use the lo0 ip of the neighboring router.
it seems that the ip addr used in the neighbor line needs to be route-able without using igp etc. thus the neighbor's inteface's ip addr works perfectly. but to use the lo0 addr, one solution would require adding a static route.
what would be the most elegant way of doing this?