From owner-freebsd-stable@FreeBSD.ORG Mon Sep 19 13:59:25 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 00211106567E for ; Mon, 19 Sep 2011 13:59:24 +0000 (UTC) (envelope-from dmagda@ee.ryerson.ca) Received: from eccles.ee.ryerson.ca (ee.ryerson.ca [141.117.1.2]) by mx1.freebsd.org (Postfix) with ESMTP id BAEDA8FC15 for ; Mon, 19 Sep 2011 13:59:24 +0000 (UTC) Received: from webmail.ee.ryerson.ca (eccles [172.16.1.2]) by eccles.ee.ryerson.ca (8.14.4/8.14.4) with ESMTP id p8JDx9vK075607; Mon, 19 Sep 2011 09:59:09 -0400 (EDT) (envelope-from dmagda@ee.ryerson.ca) Received: from 206.108.127.2 (SquirrelMail authenticated user dmagda) by webmail.ee.ryerson.ca with HTTP; Mon, 19 Sep 2011 09:59:09 -0400 Message-ID: In-Reply-To: References: Date: Mon, 19 Sep 2011 09:59:09 -0400 From: "David Magda" To: "Pete French" User-Agent: SquirrelMail/1.4.20 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: freebsd-stable@freebsd.org Subject: Re: Usling vlan(4) without an actual lan behind it X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Sep 2011 13:59:25 -0000 On Mon, September 19, 2011 08:45, Pete French wrote: >> Does it specifically have to be a vlan(4), or can you perhaps add >> another >> address to lo(4), or perhaps create a "lo1" in addition to the "lo0"? > > It can be anything really - I was looking for a "generic" interface > I can configure with IP addresses. But adding real addresses to > loopback interfaces can cause problems can it not ? No, you can create an lo0:1 that's a /32 and it shouldn't be a problem. There are a bunch HOWTOs around on configuring anycast that instruct one to put the "service" IP on an alias on lo0 and then run an OSPF process that advertises that this IP is available on this host (which acts as a router). http://www.openfusion.net/linux/anycast_dns