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From: Baruch Even <baruch@ev-en.org>
To: Netdev <netdev@vger.kernel.org>
Subject: Multicast and hardware checksum
Date: Fri, 08 Jun 2007 01:33:14 +0300	[thread overview]
Message-ID: <466887AA.800@ev-en.org> (raw)

Hello,

I have a machine on which I have an applications that sends multicast 
through eth interface with hardware tx checksum enabled. On the same 
machine I have mrouted running that routes the multicast traffic to a 
set of ppp interfaces. The packets that are received by the client have 
their checksum fixed on some number which is incorrect. If I disable tx 
checksum on the eth device the packets arrive with the proper checksum.

I still haven't followed the code paths to see how to fix this, maybe 
someone knows the relevant code and can find it faster.

Baruch

             reply	other threads:[~2007-06-07 22:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-07 22:33 Baruch Even [this message]
2007-06-08  6:20 ` Multicast and hardware checksum Herbert Xu
2007-06-08 11:02   ` Baruch Even
2007-06-08 11:06     ` Herbert Xu
2007-06-08 11:15       ` Baruch Even
2007-06-08 11:33         ` Baruch Even

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