From: ying c (bf5tgh1@yahoo.com)
Date: Sun Sep 15 2002 - 00:06:01 GMT-3
Unlike RIP or IGRP, if you set the interface as
passive and you are using neighbor command in eigrp,
the hello packets will never be send out and no
neighbor relationship can be formed. You can check the
packets with "debug eigrp packets" command.
--- Chris Larson <clarson52@comcast.net> wrote:
> I believe you just need to set the neighbor and make
> the interface the
> neighbor is on passive.
>
>
> ----- Original Message -----
> From: "Joseph Rinehart" <jjrinehart@hotmail.com>
> To: <ccielab@groupstudy.com>
> Sent: Friday, September 13, 2002 7:48 PM
> Subject: Re: EIGRP Manual Neighbor
> Configuration/Unicast
>
>
> > The net of this is that I am trying to see if
> there is a way to force
> EIGRP
> > to use unicast rather than multicast for the hello
> messages. Any ideas?
> > ----- Original Message -----
> > From: "Edward Monk" <edmonk@attbi.com>
> > To: "'Joseph Rinehart'" <jjrinehart@hotmail.com>;
> <ccielab@groupstudy.com>
> > Sent: Friday, September 13, 2002 3:56 PM
> > Subject: RE: EIGRP Manual Neighbor
> Configuration/Unicast
> >
> >
> > > Joseph,
> > >
> > > It supposedly should work but Cisco reports
> there is a bug and
> > > recommends not using it. I tried to search on
> the bug but it gives me a
> > > message about it not being able to be displayed.
> Not sure why. Maybe a
> > > there is Cisco employee who could pull it for us
> to see what it is?
> > >
> > > Look under "EIGRP frequently asked questions" on
> the Cisco site and you
> > > will see a document called. "What does the
> neighbor statement in the
> > > EIGRP configuration section do?"
> > >
> > >
>
http://www.cisco.com/warp/public/103/eigrpfaq.shtml#Q9
> > >
> > > Basically it says don't use it because it does
> very bad things. Hmmmm...
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf Of
> > > Joseph Rinehart
> > > Sent: Friday, September 13, 2002 4:08 PM
> > > To: ccielab@groupstudy.com
> > > Subject: EIGRP Manual Neighbor
> Configuration/Unicast
> > >
> > > Weird question, but I can't find any trace of
> this on CCO.
> > >
> > > EIGRP uses multicasts to send out hellos for
> neighbor discovery as does
> > > other routing protocols. In certain
> environments where you cannot
> > > broadcast
> > > or multicast that can be a problem. I tried
> programming in neighbors
> > > manually and the hellos seems to be sent out in
> non broadcast mode.
> > >
> > > The thing is that there is NO neighbor command
> documented for EIGRP,
> > > though
> > > I looked. I tried this on 11.2 as well as 12.0
> code so I know it works.
> > >
> > > First, does anyone know the details about the
> function of the
> > > undocumented
> > > neighbor command in EIGRP? Does it indeed use
> unicast rather than
> > > multicast
> > > for hellos?
> > >
> > > Second, if this is not the case is there a way
> to force unicast in EIGRP
> > > for
> > > hellos?
> > >
> > > Looking forward to the responses.
> > >
> > > Joe
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:43:52 GMT-3