Re: bizarre TCP behavior

From: Stefan Traby (stefan@hello-penguin.com)
Date: Fri Apr 20 2001 - 04:36:06 EST


On Sat, Apr 14, 2001 at 03:27:53PM +0100, Alan Cox wrote:
> > For example the Zyxel 681 SDSL-Router breaks ECN by
> > stripping 0x80 (ECN Cwnd Reduced) but not 0x40 (ECN Echo)
> > (TOS bits) on all SYN packets (!).
> >
> > I complained because of this two times more than a month ago
> > but they do not even respond.
>
> If the router claims to be RFC compliant then you may want to investigate
> trading standards bodies. In the UK at least things like the advertising
> standards agency get upset by people who claim standards compliance, are shown
> not to be compliant and are not fixing things..

FYI: I just tested a beta firmare that does not break ECN.
(ZyXEL firmware v2.50(T.05)b6 | 03/28/2001)

I hope that Zyxel will make a release soon, the last official firmare
does not support it. (Ahm, people that are willing to upgrade should
do it on _both_ sides)

-- 

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