From owner-freebsd-questions Mon Sep 30 11:53:39 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id LAA11006 for questions-outgoing; Mon, 30 Sep 1996 11:53:39 -0700 (PDT) Received: from who.cdrom.com (who.cdrom.com [204.216.27.3]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id LAA10977 for ; Mon, 30 Sep 1996 11:53:36 -0700 (PDT) Received: from alpha.xerox.com (alpha.Xerox.COM [13.1.64.93]) by who.cdrom.com (8.7.5/8.6.11) with SMTP id LAA21806 for ; Mon, 30 Sep 1996 11:53:36 -0700 (PDT) Received: from crevenia.parc.xerox.com ([13.2.116.11]) by alpha.xerox.com with SMTP id <15185(7)>; Mon, 30 Sep 1996 11:51:45 PDT Received: from localhost ([127.0.0.1]) by crevenia.parc.xerox.com with SMTP id <177476>; Mon, 30 Sep 1996 11:51:32 -0700 X-Mailer: exmh version 1.6.7 5/3/96 To: "Marc G. Fournier" cc: questions@freebsd.org Subject: Re: ifconfig alias question... In-reply-to: Your message of "Sun, 29 Sep 1996 00:22:01 PDT." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 30 Sep 1996 11:51:25 PDT From: Bill Fenner Message-Id: <96Sep30.115132pdt.177476@crevenia.parc.xerox.com> Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk In message you write: ># Initial configuration >ifconfig ed0 inet 205.150.102.51 netmask 255.255.255.0 > ># Aliases >ifconfig ed0 alias 204.101.125.200 netmask 255.255.255.255 When the alias is a different network, as opposed to another IP address on the same network, then you want to use a real netmask, not 255.255.255.255 . There's a bug in the ARP routines that always sends ARP requests with the last-added-alias's IP address; this is fixed in -current. Bill