From: Patrick McHardy <kaber@trash.net>
To: Vasantha Kumar Puttappa <vasanthakumar@iitb.ac.in>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: Packet Lost
Date: Mon, 19 Jun 2006 21:32:11 +0200 [thread overview]
Message-ID: <4496FBBB.8090303@trash.net> (raw)
In-Reply-To: <4921.10.12.25.5.1150745018.squirrel@gpo.iitb.ac.in>
Vasantha Kumar Puttappa wrote:
>>IIRC some old versions accidentally fixed up broken checksums
>>they received from userspace and this is not done anymore.
>>Do your packets have correct checksums when sent from userspace
>>to the kernel?
>>
>
> ya my checksum calculation is correct. If my checksum is wrong, it would
> have been detected by tcpdump or ethereal(in 2.6.11-6).
No it wouldn't have been, thats what I'm saying. Old ipq versions
silently fixed broken checksums. Depending on the hook you're queueing
packets at they might get dropped locally if the checksum is corrupt.
next prev parent reply other threads:[~2006-06-19 19:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-08 17:37 Packet Lost Vasantha Kumar Puttappa
2006-06-19 14:55 ` Patrick McHardy
2006-06-19 19:23 ` Vasantha Kumar Puttappa
2006-06-19 19:32 ` Patrick McHardy [this message]
2006-06-20 5:26 ` Vasantha Kumar Puttappa
2006-06-20 13:51 ` Patrick McHardy
2006-06-20 6:50 ` TCP connection and interface down Vasantha Kumar Puttappa
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