From owner-freebsd-net@FreeBSD.ORG Thu Feb 12 11:35:13 2004 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 928E616A4CE for ; Thu, 12 Feb 2004 11:35:13 -0800 (PST) Received: from sccrmhc12.comcast.net (sccrmhc12.comcast.net [204.127.202.56]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C12B43D1F for ; Thu, 12 Feb 2004 11:35:13 -0800 (PST) (envelope-from julian@elischer.org) Received: from interjet.elischer.org ([24.7.73.28]) by comcast.net (sccrmhc12) with ESMTP id <2004021219351101200sq127e>; Thu, 12 Feb 2004 19:35:12 +0000 Received: from localhost (localhost.elischer.org [127.0.0.1]) by InterJet.elischer.org (8.9.1a/8.9.1) with ESMTP id LAA11147; Thu, 12 Feb 2004 11:35:09 -0800 (PST) Date: Thu, 12 Feb 2004 11:35:06 -0800 (PST) From: Julian Elischer To: Brian Reichert In-Reply-To: <20040212193059.GX2429@numachi.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-net@freebsd.org Subject: Re: question: source address on interface w/ aliases? 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: Thu, 12 Feb 2004 19:35:13 -0000 On Thu, 12 Feb 2004, Brian Reichert wrote: > I've had an expectation violated recently, and wanted to research > whether my expectation was grounded in reality: > > Given an interface with a primary IP, and one or more aliased IP > addresses: > > When a process opens a connection to another host, which IP address > will be chosen as the source address? > > Steven's just says 'the kernel chooses the IP address and port'. > > My expectation was that the primary IP address would be used. The primary IP address on the interface referred to in the routing table entry that is chosen for the first packet.. (last time I looked) > > Is my expectation valid? Is there a spec that describes this, or > is it up to an individual OS to do whatever it wants? > > (I'm sorry to pester this list, as this question isn't actually > specific to FreeBSD...) > > I'm more than willing to do my own research, but a suggestion of > useful buzzwords would be appreciated as well. :) > > Thanks for your time... > > -- > Brian Reichert > 37 Crystal Ave. #303 Daytime number: (603) 434-6842 > Derry NH 03038-1713 USA BSD admin/developer at large > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >