What I am thinking is, R2----R1----R3----R4 R1, R2, R3 are in one area, R4 another, on R1 neighbor R2 next-hop-self, on R3 neighbor R1 next-hop-self. When routes coming from R4, R3 will forward it to R1 with next hop as R3, but when R1 (the Router Reflector) forward the routes to R2, it won't change the next-hop address because it is IBGP, so when R2 receive the routes, the next-hop should be R3.
Please let me know I am wrong, the IBGP router will change the routes anyway once the next-hop-self is set. Thanks Wei ----- Original Message ----- From: "Druid" To: "Wei Zhu" ; Sent: Sunday, January 12, 2003 10:37 AM Subject: Re: IBGP next-hop-self ? [7:60889] > At 01:49 AM 1/12/2003 +0000, Wei Zhu wrote: > >According to the document, IBGP won't change the next-hop address. > >In this example, R1, R2, R3 are in AS100, R4 in AS200, R5 in AS300 > > > > R1------R5 > > / \ > > / \ > > R2 R3-----R4 > >R1 is the RR, next-hop-self is enabled on R3(nei R1) and R1(nei R2 R3). > >As what I think, the next hop on R2 for R4(AS200) should be R3. > >But when I tried on IOS 12.1.5(10T), the next-hop on R2 is R1. > > > which is correct, if I am reading it correctly. You have next-hop-self > configured from R1 to R2. So all next-hops will be rewritten, including > iBGP routes. If you only want to override eBGP routes, you can do this > incoming on the external session, via a route-map. > > > >Thanks > >Wei sh2\(:7kyf [iiz;( )l&!"\ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=60921&t=60889 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
