On Thu, 17 Aug 2000, Luobin Yang wrote: > I have the following problem, two routers are connected by ethernet. > Here are my configurations for RouterA and RouterB > > RouterA: > interface ethernet0 > ip address 172.16.20.1 255.255.255.0 > no shut > > int loopback0 > ip address 192.68.11.1 255.255.255.0 > > router bgp 1 > neighbor 172.16.20.2 remote-as 1 > network 192.68.11.0 mask 255.255.255.0 > > RouterB: > interface ethernet 0 > ip address 172.16.20.2 255.255.255.0 > no shut > > int loopback0 > ip address 192.68.1.1 255.255.255.255 > > router bgp 1 > neighbor 172.16.20.1 remote-as 1 > > When i use extended ping from 192.68.1.1 to 192.68.11.1 , it failed. > But if i use standard ping from RouterB to 192.68.11.1 , it works. > Does anybody know the reason why? How is RouterA suppose to know how to get to 192.68.1.1 (The return packets)? Do you think BGP is going to do that for you? Try "sh ip bgp neigh 172.16.20.1 adv" on Router B..............does it show its advertising 192.68.1.1? Probably not. You should add a network statment so that it gets advertised. Also your mask on RouterA is 255.255.255.0 for the loopback (do you really need to bind an entire /24 to loopback)? On routerB its just a /32...........stick with /32's or non-overlapping networks imho Brian > > > ___________________________________ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ----------------------------------------------- Brian Feeny, CCNA, CCDA [EMAIL PROTECTED] Network Administrator ShreveNet Inc. (ASN 11881) ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
