From owner-freebsd-net Sat May 18 15:48:35 2002 Delivered-To: freebsd-net@freebsd.org Received: from swan.prod.itd.earthlink.net (swan.mail.pas.earthlink.net [207.217.120.123]) by hub.freebsd.org (Postfix) with ESMTP id 0A97B37B40C; Sat, 18 May 2002 15:48:28 -0700 (PDT) Received: from pool0271.cvx22-bradley.dialup.earthlink.net ([209.179.199.16] helo=mindspring.com) by swan.prod.itd.earthlink.net with esmtp (Exim 3.33 #2) id 179Czl-0004W1-00; Sat, 18 May 2002 15:48:13 -0700 Message-ID: <3CE6DA0F.C4D8C289@mindspring.com> Date: Sat, 18 May 2002 15:47:43 -0700 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Attila Nagy Cc: John Hay , freebsd-arch@FreeBSD.ORG, freebsd-net@FreeBSD.ORG Subject: Re: HEADS UP: ALTQ integration developer preview References: <200205181012.g4IACfe52918@zibbi.icomtek.csir.co.za> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Attila Nagy wrote: > > If the card on the receiving could not receive so many back to back > > packets and looses one or more, nfs will get stuck retrying the same big > > packet and the same thing happening over and over. > > Yep, but that's not my case. If this would be the problem, I guess > changing from gx to em wouldn't help me... The really cool thing is that this means I can shout on the wire at the right time, cause a collision, and effectively stace an undetectable denial of service attack against your servers, by making it drop large UDP datagrams IP frags. Way to open yourself up to attack! -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message