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Subject: Re: CIPE-1.4.3 and UDP checksums
From: Olaf Titz <olaf,AT,bigred,DOT,inka,DOT,de>
Date: Sun, 19 Nov 2000 14:55:14 +0100
In-reply-to: <001e01c050e0$1e3e0010$822b670a@uusiville>

> That is what I hope. But as I explained earlier, the problem is that my ISP
> does not handle correctly UDP packets with no checksum (i.e. checksum is
> zero). This may be a firmware problem in some router, or something. Quite
> difficult to track down, as my ISP has not told me what kind of hardware
> they use.
>
> This is the reason why I would like to have CIPE in Linux to send the
> checksum, because the ISP bug does not affect packets with the correct
> checksum. The ISP problem occurs only when a UDP packet with checksum = 0 is
> sent (indicating that the packet is not checksummed, as is the case with

OK, I'll look into making this a config option. Shouldn't be too hard.

Olaf





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