From: Baruch Even <baruch@ev-en.org>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: netdev@vger.kernel.org
Subject: Re: Multicast and hardware checksum
Date: Fri, 08 Jun 2007 14:15:07 +0300 [thread overview]
Message-ID: <46693A3B.70202@ev-en.org> (raw)
In-Reply-To: <20070608110621.GA23842@gondor.apana.org.au>
Herbert Xu wrote:
> On Fri, Jun 08, 2007 at 02:02:27PM +0300, Baruch Even wrote:
>> As far as IGMP and multicast handling everything works, the packets are
>> even forwarded over the ppp links but they arrive to the client with a
>> bad checksum. I don't have the trace in front of me but I believe it was
>> the UDP checksum that failed.
>
> What kind of a ppp device is this?
>
> If you run a tcpdump either side of the ppp link do you see the same
> UDP checksum value?
This is a pptp link. I've checked the checksum on the receive side, I
don't know on the sender side and I'll only be able to try it on Sunday.
Baruch
next prev parent reply other threads:[~2007-06-08 11:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 22:33 Multicast and hardware checksum Baruch Even
2007-06-08 6:20 ` Herbert Xu
2007-06-08 11:02 ` Baruch Even
2007-06-08 11:06 ` Herbert Xu
2007-06-08 11:15 ` Baruch Even [this message]
2007-06-08 11:33 ` Baruch Even
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