From owner-freebsd-net@FreeBSD.ORG Wed Jul 2 02:53:05 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 2669969A for ; Wed, 2 Jul 2014 02:53:05 +0000 (UTC) Received: from h2.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "funkthat.com", Issuer "funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 02DE62B9B for ; Wed, 2 Jul 2014 02:53:04 +0000 (UTC) Received: from h2.funkthat.com (localhost [127.0.0.1]) by h2.funkthat.com (8.14.3/8.14.3) with ESMTP id s622r35T061277 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 1 Jul 2014 19:53:04 -0700 (PDT) (envelope-from jmg@h2.funkthat.com) Received: (from jmg@localhost) by h2.funkthat.com (8.14.3/8.14.3/Submit) id s622r2Eb061276; Tue, 1 Jul 2014 19:53:02 -0700 (PDT) (envelope-from jmg) Date: Tue, 1 Jul 2014 19:53:02 -0700 From: John-Mark Gurney To: Andrea Venturoli Subject: Re: MTU not regrowing? Message-ID: <20140702025302.GI45513@funkthat.com> Mail-Followup-To: Andrea Venturoli , John Hay , freebsd-net@freebsd.org References: <53A9C6D0.3090900@netfence.it> <20140624190333.GA13748@zibbi.meraka.csir.co.za> <53B2FFE9.3030906@netfence.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53B2FFE9.3030906@netfence.it> User-Agent: Mutt/1.4.2.3i X-Operating-System: FreeBSD 7.2-RELEASE i386 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2 (h2.funkthat.com [127.0.0.1]); Tue, 01 Jul 2014 19:53:04 -0700 (PDT) Cc: freebsd-net@freebsd.org X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jul 2014 02:53:05 -0000 Andrea Venturoli wrote this message on Tue, Jul 01, 2014 at 20:37 +0200: > On 06/24/14 21:03, John Hay wrote: > > >Do a "route get somehost" and see what mtu is returned. > > You are right, I see a route with the old, lesser MTU. > > > > > >You might be able to delete or tweak that route. > > How do I do this? > I tried "route delete", but it doesn't help. route change -mtu XXX If you delete all the routes associated w/ the interface, the network route should be recreated iirc.. Or just run the above change command on all the necessary routes that have the incorrect mtu.. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."