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Re: Routing problem
- To: ficher(at-nospam)netvision.net.il (Henry Ficher)
- Subject: Re: Routing problem
- From: "Geoffrey S. Mendelson" <gsm(at-nospam)bfr.co.il>
- Date: Thu, 22 Nov 2001 12:34:36 +0200 (IST)
- Cc: linux-il(at-nospam)linux.org.il
- Delivered-To: linux.org.il-linux-il@linux.org.il
- In-Reply-To: <3BFCCCF1.2000500@netvision.net.il> from "Henry Ficher" at Nov 22, 2001 12:01:21 PM
- Reply-To: gmendelson(at-nospam)bloomberg.com
- Sender: linux-il-bounce(at-nospam)cs.huji.ac.il
Henry Ficher wrote:
>
> Hi all!
>
> I'm kinda baffled by this one:
>
> I use NetSaint to check hosts and routers in one of our networks. This
> network is somewhat complex, with several remote sites connected with
> the main office.
..
> I'm running kernel 2.4.14 on RedHat 7.2 and the routing table looks like
> this:
> The problem is that when one of the routers goes down, say 11.11.13.1,
> its route gets dropped by the kernel after some time and it doesn't come
> back up when the router does. Netstat -ra shows the correct entry in the
> routing table, but traceroute ignores it until I restart the network
> service.
>
> FWIW, using routes to hosts rather than to networks doesn't solve the
> problem.
>
> Is this behaviour by design or I screwed up somewhere?
Well the question is very simple. How does your system get the routes?
There are 3 ways:
1. Static routes at boot time. Once gone, they never come back.
2. Dynamic routes installed by a running "routed". Right idea, wrong program.
routed is "depricated".
3. Dynamic routes installed a running "gated", you got it, but gated is not
configured properly.
Geoff.
--
Geoffrey S. Mendelson
Bloomberg L.P., BFM (Israel) 2 hours ahead of London, 7 hours ahead of New York.
Tel: 972-(0)3-6944-211 Fax: 972-(0)3-6944-225 Email: gmendelson@bloomberg.com
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