[178] in linux-net channel archive
Re: Possible bug with ICMP redirects (in kernel 1.2.3)
daemon@ATHENA.MIT.EDU (Lutz Pressler)
Thu Apr 6 03:34:18 1995
Date: Thu, 6 Apr 1995 08:12:18 +0200 (MEZ)
From: Lutz Pressler <Lutz.Pressler@unix.med-stat.gwdg.de>
To: Peter Belding <pbelding@qualcomm.com>
cc: linux-net@vger.rutgers.edu, Alan.Cox@linux.org,
linux-kernel@vger.rutgers.edu
In-Reply-To: <Pine.SUN.3.90.950405155114.28219C-100000@hendrix>
On Wed, 5 Apr 1995, Peter Belding wrote:
> ppp1 can't send the redirect to gateway because gateway's IP address is
> not in the packet that triggered the redirect.
argh.. sure, should have thought about this one a bit more :)
> However, I don't think
> ppp1 should be sending an ICMP redirect at all. According to RFC 792, a
> redirect is sent if the gateway and the source address are on the same
> network, which is not true in this case. It looks like the Linux
> networking code sends a redirect when a packet is forwarded out the same
> interface it came in. Perhaps some additional checking should be done
> before sending the redirect?
>
Ok, so that's a bug.. a question concerning our setup then: Is there any way
to tell the Wellfleet router from the outside to update it's ARP cache?
Or is ProxyARP just not intended to be used in such a situation?
Regards,
Lutz
--
Abteilung Medizinische Statistik Lutz Pre"sler
Universit"at G"ottingen (Systemverwaltung) privat:
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Tel.: (+49[0]551) 39-4956 FAX: -4995 Tel.: (+49[0]551) 7700178
----> E-mail: Lutz.Pressler@Med-Stat.GWDG.DE / lpressl1@GWDG.DE <----
