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From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Clamping tcp mss values to decrease latency
Date: Mon, 25 Feb 2002 12:26:55 +0000	[thread overview]
Message-ID: <marc-lartc-101464005801253@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101461408005658@msgid-missing>

On Mon, Feb 25, 2002 at 12:58:54PM +0100, Martin Devera wrote:
> > > other tcp connections to have the normal full packet size. Enter
> > > MSS-clamping. My pppoe client for linux can do mss clamping on every
> > > packet that goes out and come in. Not enough control. There is an option
> > > to do mss-clamping in iptables, however this only works in the forward
> > > table. I can't match and control outgoing web connections, just
> > 
> > Control and outgoing can be done with regular MTU settings. Just lower the
> > MTU size of your ppp interface and the kernel will set a lower MSS
> > automatically.
> 
> Be VERY careful when doing it. There is too many websites blocking
> MTU discovery protocol and you will be no longer able to reach them.
> These system maintainers should be shot. :-\
> Setting max MSS in route is better way ..

Not for locally generated packets - if you lower MTU, MSS will get set too.

Regards,

bert

-- 
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  parent reply	other threads:[~2002-02-25 12:26 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-02-25  5:13 [LARTC] Clamping tcp mss values to decrease latency Ross Skaliotis
2002-02-25  6:55 ` Martin Devera
2002-02-25  9:00 ` bert hubert
2002-02-25 11:58 ` Martin Devera
2002-02-25 12:26 ` bert hubert [this message]
2002-02-25 13:23 ` Martin Devera
2002-02-25 13:37 ` Ross Skaliotis
2002-02-25 13:44 ` Martin Devera
2002-02-25 13:48 ` bert hubert
2002-02-25 13:54 ` Martin Devera
2002-02-28  9:05 ` bert hubert

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