From: Rob Webber (rwebber@xxxxxxxxxxxx)
Date: Mon Feb 26 2001 - 21:50:39 GMT-3
Good point...if you can't use static routing between the loopbacks you would
definitely need some type of IGP - OSPF, EIGRP, RIP, etc. The purpose of the
(static or dynamic) routing is to allow the routers to route the TCP packet
to each other to form the relationship.
When not using loopbacks no routing is necessary since the neighbor is
(usually) on a directly connected subnet.
Rob.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Mark Salmon
Sent: Monday, February 26, 2001 6:53 PM
To: MASK
Cc: CCIE GROUP
Subject: Re: update-source lo0...
Just want to comment on this. It is my understanding that generally
speaking, static routes are not allowed in the lab unless specifically
stated. I suspect that if you wish to configure ebgp between two non
directly connected neighbors and the question does not state that you
can use static then it would be interesting. (in this case, I expect the
instructions will allow one to use static but one cannot assume that.
MASK wrote:
> hi,
>
> well it depends, if you are peering b/w neighbors as
> EBGP speakers, then you also need to configure each
> with "neighbor x.x.x.x ebgp-multihop" commands, as the
> ip addresses you are using, are not on a directly
> connected links, but on the loopbacks, and you also
> need a static route on both the routers, marking the
> destination as the two looppback addresses on the
> respective neighbors, and having the next-hop ip
> addresses of the directly-connected links b/w the ebgp
> peers.
>
> if the peering is b/w IBGP neighbors, then you only
> need static routes on the respective neighbors, no
> ebgp-multihop commands!!
>
> Thx
>
> --- Steven Weber <itweber@earthlink.net> wrote:
> >
> > I want to use this command on both sides of the
> > connection but it isn't
> > working. I use the remote lo0 address for each
> > neighbor statement and I put it
> > on both sides of the connection but it isn't forming
> > the adjacency. If I take
> > away the update-source lo0 command and switch the
> > neighbor statements back to
> > normal everything works fine.Has anyone ever seen
> > this before?Am I doing
> > something wrong? All help is greatly appreciated.
> >
> > Thanks,
> >
> >
> >
> > --- Steven Weber
> >
> > --- itweber@earthlink.net
> >
> > --- EarthLink: It's your Internet.
> >
> >
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:04 GMT-3