From owner-freebsd-net@FreeBSD.ORG Tue Apr 26 16:35:10 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C3966106564A for ; Tue, 26 Apr 2011 16:35:10 +0000 (UTC) (envelope-from mksmith@adhost.com) Received: from mail-in04.adhost.com (mail-in04.adhost.com [216.211.128.134]) by mx1.freebsd.org (Postfix) with ESMTP id 9D3A08FC1C for ; Tue, 26 Apr 2011 16:35:10 +0000 (UTC) Received: from AD-EXH02.adhost.lan (unknown [10.142.0.21]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail-in04.adhost.com (Postfix) with ESMTPS id 38435614F7B; Tue, 26 Apr 2011 09:35:04 -0700 (PDT) (envelope-from mksmith@adhost.com) Received: from AD-EXH02.adhost.lan ([fe80::1c5b:7ead:8ba3:6108]) by AD-EXH02.adhost.lan ([fe80::1c5b:7ead:8ba3:6108%11]) with mapi id 14.01.0255.000; Tue, 26 Apr 2011 09:35:04 -0700 From: "Michael K. Smith - Adhost" To: "fbsdmail@dnswatch.com" , "freebsd-net@freebsd.org" Thread-Topic: two /24's and only one gateway - is routing still possible? Thread-Index: AQHMA3meV9Z7xNI95Uu1bMyEJLF0EZRvZ62AgAA1lgCAALtbsA== Date: Tue, 26 Apr 2011 16:35:02 +0000 Message-ID: References: <2b2485288a6e492b3c5c94cc21c79949.dnswclient@www.dnswatch.com> <4DB5C77B.5000605@freebsd.org> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.142.1.52] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: Subject: RE: two /24's and only one gateway - is routing still possible? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Apr 2011 16:35:10 -0000 > -----Original Message----- > From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd- > net@freebsd.org] On Behalf Of fbsdmail@dnswatch.com > Sent: Monday, April 25, 2011 3:24 PM > To: freebsd-net@freebsd.org > Subject: Re: two /24's and only one gateway - is routing still possible? >=20 >=20 > On Mon, April 25, 2011 12:11 pm, Julian Elischer wrote: > > On 4/25/11 11:47 AM, fbsdmail@dnswatch.com wrote: > > > >> Greetings, > >> I've been trying to figure an ideal solution to this for some time, > >> and thought I'd post the question here to see if anyone else is workin= g > >> with this situation. Here's my scenario; > >> I have a /24 with a prefix of 168.103.150.xxx with a gateway on this > >> prefix (DSLmodem). > >> I also have a /24 with a prefix of 75.160.109.xxx > >> My question(s) is/are: > >> 1) is it possible to route both of these across the same GW? > >> 2) if answer to 1) =3D=3D NO, what might I do? > >> > > > > you probably need to make a routing request to your ISP to ask them to > > advertise that 75.160.109.xxx is available via 168.103.150.x > > they may charge you $$ to do so or may not even want to do it. They may > > also require proof that you own them. this may be a problem as they are > > owed by cox communications and Quest. you'd thus have to get permission > > from each ISP to route teh other.. >=20 > Hello, and thank you for your reply. > They're actually owned by US West Communications (now Qwest), and > CenturyTEL (now CenturyLink), which recently bought all QWest DSL > related business. > I lease both blocks, and have ASN's for both. > My intention/goal is to route both blocks over the same GW (the 168) > The only solution I could come up with was to create a FreeBSD box to > serve as a Gateway, having it connected directly to the DSLmodem > (external), > and simply have it assigned both an IP out of the 168 block, as well > as one from the 75 block. Problem is, I'll burn 2 additional addresses, > and create an extra hop to & from the network(s). :( >=20 Why don't you get them to assign you a /30 on your DSL link and route the t= wo /24's to you?=20 Mike