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Date:      Thu, 22 Apr 2004 16:30:45 +0200
From:      Andre Oppermann <andre@freebsd.org>
To:        Heinz Knocke <knockefreebsd@o2.pl>
Cc:        net@freebsd.org
Subject:   Re: simulating an LFN over 1Gb LAN Ethernet?
Message-ID:  <4087D715.AD1C0F51@freebsd.org>
References:  <003301c42875$ccd62f10$df5561d9@ALFA>

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Heinz Knocke wrote:
> 
> Hi!
> 
> I'd like to simulate an LFN over LAN - my idea is to install testing software
> on 2 hosts, traffic between them would be routed by the 3rd one - a FreeBSD
> based router. To simulate long RTT the router would have to delay packet
> forwarding in at least one direction - does anyone know how to do it? Is
> it at all possible withou some changes in kernel source code?

yes, do man dummynet(4), ipfw(8).

-- 
Andre



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