At 03:46 PM 4/5/2003 +0000, Salvatore De Luca wrote: >Hi All, > > I am trying to better understand a particular BGP scenario, thought >someone might shed some light. This is probably very simple, i am just >missing the punchline. If you have 2 routers, one let's say running in AS100 >the other running in AS200, and you had to EBGP peer with 128.1.1.254 from >AS100 router. You were required to use the Ethernet0/0 ip on AS100 router >for peering 128.1.2.3, would you configure your neighbor statment pointing >to 128.1.1.254 and update the source to Ethernet 0/0?,(I tried this and was >no good) even after a debug ip bgp. I think maybe a secondary address >128.1.1.253 on the ethernet might be a way to go. Basically, 128.1.1.254 is >a route generator that I would need to peer with in order to recieve several >external routes. I dont have any configs to post at the moment, but just >trying to get an outside opinion.
There isn't enough info here to answer this. Is 128.1.1.254 on the other side of the Ethernet? (ie the next is 128.1.0.0/22)? Likely not I expect. If not, you need to use EBGP multihop which will allow the EBGP packets to move out farther than 1 link (changes the TTL in the packet from 1 to whatever you set it to) Furthermore, is the 128.1.1.254 configured to peer with 128.1.2.3? If not, you'll need to use "update source" to set your side of the connection to the appropriate address. If 128.1.2.3 is a secondary, that this would likely need to be used as well. However, is 128.1.2.3 is the primary address on the eth0 and the eth0 is the closest link on your router toward 128.1.1.254 and 128.1.1.254 is set to peer with 128.1.2.3, than you should just be able to set multi-hop with an appropriate TTL and be on your way. Also watch for BGP authentication in case it is required. Pete >Thanks, >Static0101 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66937&t=66919 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
