From owner-freebsd-net@FreeBSD.ORG Fri May 13 15:05:40 2005 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0A8B416A4CE for ; Fri, 13 May 2005 15:05:40 +0000 (GMT) Received: from mp2.macomnet.net (mp2.macomnet.net [195.128.64.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id ECDC243D64 for ; Fri, 13 May 2005 15:05:38 +0000 (GMT) (envelope-from maxim@macomnet.ru) Received-SPF: pass (mp2.macomnet.net: domain of maxim@macomnet.ru designates 127.0.0.1 as permitted sender) receiver=mp2.macomnet.net; client_ip=127.0.0.1; envelope-from=maxim@macomnet.ru; Received: from localhost (localhost [127.0.0.1]) by mp2.macomnet.net (8.12.11/8.12.11) with ESMTP id j4DF5bb6015369; Fri, 13 May 2005 19:05:37 +0400 (MSD) (envelope-from maxim@macomnet.ru) Date: Fri, 13 May 2005 19:05:37 +0400 (MSD) From: Maxim Konovalov To: Matt Ruzicka In-Reply-To: Message-ID: <20050513190318.J15338@mp2.macomnet.net> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-net@freebsd.org Subject: Re: **net** Re: Outbound TCP issue, potentially related to'FreeBSD-SA-05:08.kmem [REVISED]' X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 May 2005 15:05:40 -0000 [...] > net.inet.ip.portrange.randomized: 1 > net.inet.ip.portrange.randomcps: 10 > net.inet.ip.portrange.randomtime: 45 > > Although I'm not familiar with what this /should/ be, my guts says 10 > seems sort of low. > > Also, was this only implemented in 4.11? (Since we started seeing this > while running 4.9 still.) > > http://www.freebsd.org/releases/4.11R/relnotes-i386.html > > We'll give this a shot though to see if it helps either way. These sysctls are in 4.11 only and 4.9 has a broken random port allocation algorithm. Please turn it off as Mike suggests and report results back. -- Maxim Konovalov