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Re: 2.4.18 userspace seeing UDP packets with bad checksum?

To: ahu@xxxxxxx (bert hubert)
Subject: Re: 2.4.18 userspace seeing UDP packets with bad checksum?
From: kuznet@xxxxxxxxxxxxx
Date: Tue, 30 Jul 2002 16:40:38 +0400 (MSD)
Cc: netdev@xxxxxxxxxxx
In-reply-to: <20020730104815.GA22307@outpost.ds9a.nl> from "bert hubert" at Jul 30, 2 03:15:01 pm
Sender: owner-netdev@xxxxxxxxxxx
Hello!

> I'm under the strong impression that 2.4.18 lets userspace see packets with
> incorrect UDP checksums.

How did you get this impression?

> Is this policy?

This is impossible unless requested explicitly with SO_NO_CHECK
or a buggy hardware incorrectly reports checksum is valid.

Alexey


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