Re: [nsp] eBGP establishment

From: chris (chris@chrisland.net)
Date: Thu Jun 20 2002 - 11:42:16 EDT


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
> >> >
> >> >
> >



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