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Re: IGRP

daemon@ATHENA.MIT.EDU (Christian Daudt)
Thu Apr 4 17:47:12 1996

From: csd@microplex.com (Christian Daudt)
To: ATPlack@scj.com
Date: 	Wed, 3 Apr 1996 22:22:10 -0800 (PST)
Cc: csd@microplex.com, linux-net@vger.rutgers.edu, linux-ppp@vger.rutgers.edu
In-Reply-To: <"MSMAIL PC */PRMD=SCJMAIL/ADMD=MCI/C=US/"@MHS> from "ATPlack@scj.com" at Mar 26, 96 01:36:29 pm

Could you send a little map of IP addresses configured for these machines
and the ip address you're trying to ping ? Also send a netstat -rn result 
from your linux box and a ifconfig result. That should make it easier to 
help you.

 Cheers,

 Christian.

BTW: Some process *has* to be generating the RIP packets in your Linux 
box if you're seeing them on the network. Check your processes.


> > 
> I have one NT box, one Novell server (set up as a IP router), one 
> Workstation (WFW 3.11), and one Linux box.
> 
> The Novell server, workstation and NT box have the default route as the 
> Linux box.  The Linux box has the default route through the PPP link.
> 
> gated is not running.
> 
> I am not able to Ping from the NT, Novell, or Workstation to the other side 
> of the Linux box.
> 
> When I do an IPtrace from the workstation, I can see the RIP from the Novell 
> server and the Linux box (and some stupid NETBIOS broadcasts from the NT 
> box).
> 
> I have enabled packet forwarding on the kernel and recompiled.  The RIP 
> packets look correct from the Linux box.
> 
> During a PING on the NT box, it returns a message that indicates the Linux 
> box rejecting that route as unreachable.
> 
> A ping from the Linux box across the link works okay.  Only the Linux box 
> can communicate across the link.
> 
> According to the NET-2 How-To.  I do not see any other piece that should be 
> needed.
> 
> Why is the Linux box not routing the packets?
> 
> Since I see the RIP packets, why would I need gated?
>  ----------
> From: csd@microplex.com
> To: Plack, Anthony, T.
> Cc: linux-net@vger.rutgers.edu; linux-ppp@vger.rutgers.edu
> Subject: Re: IGRP
> Date: Tuesday, March 26, 1996 3:55AM
> 
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> 
> > I have a great connection to the network now through the PPP link.
> However,
> > that is only on my linux machine.
> >
> > I assume that gated will help get the route available to the other 
> machines
> > on my local Ethernet segment.  If not, someone let me know.  I am going to 
> 
> > try this this week.
>  It shouldn't. Host computers should not get their routing info from
> routing protocol updates. Gated is there to make routers talk to
> themselves. You'll probably need to configure at least the default
> gateway on the other machines. The rest should sort itself out from there
> 
> > My primary concern is that I might need to support IGRP.  See the network
> > guys here have disabled RIP on all networks at our sight in favor of IGRP
> > from Cisco.
> >
> > Any ideas on support for this through Linux.
> >
> As far as I know, IGRP is proprietary and cisco has patents on some
> portions of it, so I don't think you'll get Linux boxes talking IGRP
> anytime soon.
>  (Could someone confirm/deny this info that I have?)
> 
> cheers,
> 
>  Christian.
> 
>  --
>  ----------------------------------------------------------------
> Christian Daudt (csd@microplex.com)            Software Engineer
> Microplex Systems Ltd.            URL: http://www.microplex.com/
> "You can tell how far we have to go, when FORTRAN is the language of
> supercomputers."   -- Steven Feiner
> 
> 
> 
> 
> 
> 


-- 
----------------------------------------------------------------   
Christian Daudt (csd@microplex.com)            Software Engineer
Microplex Systems Ltd.            URL: http://www.microplex.com/ 
"You can tell how far we have to go, when FORTRAN is the language of
supercomputers."   -- Steven Feiner
 


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