From: Paolo Rossi <paolo_76@inwind.it>
To: Harald Welte <laforge@netfilter.org>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: SNAT multicast traffic
Date: Tue, 08 Feb 2005 14:52:05 +0100 [thread overview]
Message-ID: <4208C405.9020907@inwind.it> (raw)
In-Reply-To: <20050208144638.GQ6878@sunbeam.de.gnumonks.org>
Harald Welte wrote:
>On Tue, Feb 08, 2005 at 10:13:29AM +0100, Paolo Rossi wrote:
>
>
>>Hi all,
>>
>>
>>I have a trouble with netfilter. I need to perform a SNAT to outgoing
>>multicast packet. Multicast packet come from private network and i can't
>>annunce this private network in my routing domain. Becauseour routers
>>manage multicast traffic with PIM-SM protocol and PIM perform RPF (reverse
>>path forwarding), the clients can't see the multicast traffic. I've read
>>that netfilter don't support multicast SNAT, why?
>>
>>
>
>netfilter/iptables doesn't implement multicast NAT at all. this is due
>to it's strictly stateful fully-symmetric implementation, which
>obviously doesn't fit the multicast paradigm (where 'reply' packets of a
>multicast 'connection' don't have the inverted
>sourceip<->destinationip).
>
>
>
Thank you very much Harald.
Is it possible to perform stateless nat in Linux ?
next prev parent reply other threads:[~2005-02-08 13:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-08 9:13 SNAT multicast traffic Paolo Rossi
2005-02-08 14:46 ` Harald Welte
2005-02-08 13:52 ` Paolo Rossi [this message]
2005-02-09 13:55 ` Samuel Jean
2005-02-09 14:18 ` Bill Rugolsky Jr.
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