Peter Thanks for your reply. Why can't Cisco put it as simply as that.
I am only trying to replace the AS as the one being advertised by R1 is used again by another part of the network. i.e. R5 also uses the same AS number. I need my network to be advertised through to R5 and R5 would drop the updates if it saw its own AS number inthe path, therefore I am trying to find various options to 'hide' the AS of R1. This was one of the potential options but not now as it doesnt do what I want it to do. Hope this makes sense. Gary On Fri, Apr 11, 2008 at 4:29 PM, Peter Rathlev <[EMAIL PROTECTED]> wrote: > Hi Gary, > > The as-override only works if the AS being overridden (from R1) is the > same as the AS of the neighbor (R3), in which case it is replaced with > the providers AS (R2). When they're differente ASses (no pun!) it won't > have any effect. > > Removing the AS from R1 would defeat the loop-prevention in BGP. What if > R3 were to announce routes to R1 by other means? So forgive my asking: > Why do you want to remove the AS when sending prefixes to R3? :-) > > Regards, > Peter > > On Fri, 2008-04-11 at 13:30 +0100, Gary Roberton wrote: > > I have a router that is receiving updates from a site router with an AS > I > > want to replace. I have used remove-private-as and this works but I > need to > > see it I can get as-override working. I have the following; > > Router 1 (10.5.5.1) > Router 2 (10.5.5.2) > Router 3 (10.35.3.74) > > > > Router 2 is to remove the AS of Router 1. I have the following config > in > > Router 2 > > > > router bgp 2856 > > no synchronization > > bgp router-id 10.5.5.2 > > bgp log-neighbor-changes > > no auto-summary > > ! > > address-family ipv4 vrf cc > > redistribute connected > > redistribute static > > neighbor 10.5.5.1 remote-as 64537 > > neighbor 10.5.5.1 activate > > neighbor 10.35.3.74 remote-as 64603 > > neighbor 10.35.3.74 update-source FastEthernet0/1 > > neighbor 10.35.3.74 activate > > neighbor 10.35.3.74 as-override > > no synchronization > > exit-address-family > > > > I have tried the as-override on both neighbor statments and neith works. > I > > have two questions, > > 1. On which neighbor statement do I put as-override > > 2. Is there anything missing? > > > > Thanks > > > > Regards > > > > Gary > > _______________________________________________ > > cisco-nsp mailing list [email protected] > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
