Chris,
BGP will purposely not use the default route to establish the session to a
peer. Use anything more specific and the session will come up.
At 11:42 PM 6/20/2002 +0800, chris wrote:
>i tried 12.2.3 and 12.2.2T
>
>Chris
>
>Sean Crocker wrote:
> >
> > I know at least years ago on 11.1CC that the ttl applied
> > to the whole session. Perhaps they changed the behavior
> > recently. What's your code version?
> >
> > Sean
> >
> > >I enabled bgp debug and yes, it is. So is it something wrong with the
> > >router without the explicit route?
> > >
> > >Chris
> > >
> > >Sean Crocker wrote:
> > >>
> > >> Clear the session a few times... the peer that always opens
> > >> the session is the one with the explicit route, right?
> > >>
> > >> Sean
> > >>
> > >> >Dear all,
> > >> >
> > >> >I have this network setup:
> > >> >
> > >> > Router A <-eth0-------eth0-> Router B
> > >> >
> > >> >and simplified config:
> > >> >
> > >> >--------------------
> > >> >! Router A
> > >> >interface loopback0
> > >> > ip address 192.168.0.1 255.255.255.255
> > >> >!
> > >> >interface ethernet0
> > >> > ip address 10.0.0.1 255.255.255.0
> > >> >!
> > >> >router bgp 65501
> > >> > neighbor 192.168.0.2 remote-as 65502
> > >> > neighbor 192.168.0.2 update-source loopback0
> > >> > neighbor 192.168.0.2 ebgp-multihop 2
> > >> >!
> > >> >ip route 0.0.0.0 0.0.0.0 10.0.0.2
> > >> >--------------------
> > >> >! Router B
> > >> >interface loopback0
> > >> > ip address 192.168.0.2 255.255.255.255
> > >> >!
> > >> >interface ethernet0
> > >> > ip address 10.0.0.2 255.255.255.0
> > >> >!
> > >> >router bgp 65502
> > >> > neighbor 192.168.0.1 remote-as 65501
> > >> > neighbor 192.168.0.1 update-source loopback0
> > >> > neighbor 192.168.0.1 ebgp-multihop 2
> > >> >!
> > >> >ip route 0.0.0.0 0.0.0.0 10.0.0.1
> > >> >--------------------
> > >> >
> > >> >BGP between 2 routers cannot be established. However, when I add a
> > >> >route of another router's loopback in either one router, it will be up.
> > >> >E.g.
> > >> >
> > >> >! Router A
> > >> >ip route 192.168.0.2 255.255.255.255 10.0.0.2
> > >> >
> > >> >Is it normal? (in the sense that I only need to add this route in 1
> > >> >router, not both.)
> > >> >
> > >> >Thanks.
> > >> >
> > >> >Regards,
> > >> >Chris
> > >> >
> > >> >
> > >
Harold Ritter, CCIE 4168
Advanced Network Services - ISP East
Cisco Systems
300 Apollo Drive
Chelmsford, MA 01824 USA
Phone: 978 497 3129
Fax: 978 497 3129
Cisco Systems- "Empowering the Internet Generation."
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:48 EDT