From owner-freebsd-hackers@FreeBSD.ORG Wed Jul 31 17:23:58 2013 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 2D4B6A3E for ; Wed, 31 Jul 2013 17:23:58 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 00A032E6F for ; Wed, 31 Jul 2013 17:23:57 +0000 (UTC) Received: from Julian-MBP3.local (etroy.elischer.org [121.45.226.51]) (authenticated bits=0) by vps1.elischer.org (8.14.7/8.14.6) with ESMTP id r6VHNpW9034901 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Wed, 31 Jul 2013 10:23:55 -0700 (PDT) (envelope-from julian@freebsd.org) Message-ID: <51F94822.4020005@freebsd.org> Date: Thu, 01 Aug 2013 01:23:46 +0800 From: Julian Elischer User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: Karl Pielorz Subject: Re: Stacking lots of IP's on a single box - any 'gotchas'? References: <34C668004A0D654205D0516B@Mail-PC.tdx.co.uk> In-Reply-To: <34C668004A0D654205D0516B@Mail-PC.tdx.co.uk> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Jul 2013 17:23:58 -0000 On 7/31/13 5:37 PM, Karl Pielorz wrote: > > Hi, > > We've got a number of boxes we'd like to consolidate - this could > mean upward of 1,500 IP's on a single box (9.1 amd64). > > Last time we did anything like this we hit at issue at around 900 > (ntpd 'binds' by default to all available IP's - I think we had a > workaround for that). > > But is there any hard limit we're likely to encounter putting so > many IP's on a single machine? - Are there any limits that would > likely need tuning to support that many IP's? all on one interface? do you really need so many addresses? what are you trying to achieve? you can make a machine accept work for many addresses without actually assigning those addresses to any interface on the machine (see ipfw fwd) > > Thanks, > > -Karl > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to > "freebsd-hackers-unsubscribe@freebsd.org" >