From: Hinko Kocevar <hinko.kocevar@cetrtapot.si>
To: Christoph Paasch <christoph.paasch@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: icmp forward
Date: Fri, 30 Jan 2009 10:12:52 +0100 [thread overview]
Message-ID: <4982C494.50505@cetrtapot.si> (raw)
In-Reply-To: <200901300949.39955.christoph.paasch@gmail.com>
Christoph Paasch wrote:
> Hi,
>
> On Fri January 30 2009, Hinko Kocevar wrote:
>> Hi all,
>>
>> Is it possible to 'port forward' ICMP requests?
> You can match the protocol on ICMP packets with -p icmp and let the port-
> specific stuff out of it, as ICMP doesn't uses portnumbers. But the problem will
> be, that your external machine won't be reachable for icmp packets. (as every
> icmp packets will get forwarded) It may be ennoying if MTU or ping packets
> doesn't reach anymore your machine. That depends on the usage of your gateway.
>
Yes, that is what I was afraid of. I think that gateway should still remain
available for ICMP echo-reply from external network.
Thank you!
--
Hinko Kočevar, OSS developer
ČETRTA POT, d.o.o.
Planina 3, 4000 Kranj, SI EU
tel ++386 (0) 4 280 66 03
e-mail hinko.kocevar@cetrtapot.si
http www.cetrtapot.si
next prev parent reply other threads:[~2009-01-30 9:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-30 8:18 icmp forward Hinko Kocevar
2009-01-30 8:33 ` Michele Petrazzo - Unipex srl
2009-01-30 8:53 ` Payam Chychi
2009-01-30 9:19 ` Hinko Kocevar
2009-01-30 8:49 ` Christoph Paasch
2009-01-30 9:12 ` Hinko Kocevar [this message]
2009-01-30 10:53 ` Pascal Hambourg
2009-01-30 11:24 ` Hinko Kocevar
2009-01-30 11:35 ` Hinko Kocevar
2009-01-30 11:42 ` Pascal Hambourg
2009-01-30 11:36 ` Mart Frauenlob
2009-01-30 9:20 ` Mart Frauenlob
2009-01-30 11:36 ` Hinko Kocevar
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