From owner-freebsd-questions Mon Aug 2 16:42:38 1999 Delivered-To: freebsd-questions@freebsd.org Received: from awfulhak.org (dynamic-101.max1-du-ws.dialnetwork.pavilion.co.uk [212.74.8.101]) by hub.freebsd.org (Postfix) with ESMTP id 19DB914C22 for ; Mon, 2 Aug 1999 16:42:25 -0700 (PDT) (envelope-from brian@Awfulhak.org) Received: from keep.lan.Awfulhak.org (root@keep.lan.Awfulhak.org [172.16.0.8]) by awfulhak.org (8.9.3/8.9.3) with ESMTP id AAA01417; Tue, 3 Aug 1999 00:31:57 +0100 (BST) (envelope-from brian@lan.awfulhak.org) Received: from keep.lan.Awfulhak.org (brian@localhost.lan.Awfulhak.org [127.0.0.1]) by keep.lan.Awfulhak.org (8.9.3/8.9.3) with ESMTP id AAA02913; Tue, 3 Aug 1999 00:33:04 +0100 (BST) (envelope-from brian@keep.lan.Awfulhak.org) Message-Id: <199908022333.AAA02913@keep.lan.Awfulhak.org> X-Mailer: exmh version 2.0.2 2/24/98 To: Jim Pazarena Cc: freebsd-questions@FreeBSD.ORG Subject: Re: ifconfig alias setup In-reply-to: Your message of "Sat, 31 Jul 1999 10:56:23 PDT." <9907311056.aa08790@dick.ccstores.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 03 Aug 1999 00:33:03 +0100 From: Brian Somers Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Recently I posed a question about ifconfig and setting up alias IPs. Turns > out that the aliased IP need a netmask of 255.255.255.255 (then it works) > > Is this "standard"? The reason I ask is that I have both SCO OpenServer > _and_ SCO UnixWare, and both of those OSes use the _same_ netmask as > the original IP. > > Does the SysV implementation of ifconfig differ from that of the BSD one? > > This seems like a very fundamental difference, and I'd really like to know > how it occured. What I'd like to know is this: On SCO, if I configure two aliases ip 4.2.3.1 netmask 0xffffff00 ip 4.2.3.2 netmask 0xffffff00 and then connect() to 4.3.2.3, what source IP number does the packet get ? I don't see how conflicting netmasks can be implemented.... SCO sounds a bit broken to me. Am I missing something ? > -- > Jim Pazarena mailto:paz@ccstores.com > http://www.qcislands.net/paz -- Brian Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message