From owner-freebsd-hackers Wed Dec 17 07:47:28 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA19792 for hackers-outgoing; Wed, 17 Dec 1997 07:47:28 -0800 (PST) (envelope-from owner-freebsd-hackers) Received: from Kitten.mcs.com (Kitten.mcs.com [192.160.127.90]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id HAA19238 for ; Wed, 17 Dec 1997 07:42:21 -0800 (PST) (envelope-from karl@Mars.mcs.net) Received: from Mars.mcs.net (karl@Mars.mcs.net [192.160.127.85]) by Kitten.mcs.com (8.8.7/8.8.2) with ESMTP id JAA08123; Wed, 17 Dec 1997 09:41:57 -0600 (CST) Received: (from karl@localhost) by Mars.mcs.net (8.8.7/8.8.2) id JAA04382; Wed, 17 Dec 1997 09:41:57 -0600 (CST) Message-ID: <19971217094157.37862@mcs.net> Date: Wed, 17 Dec 1997 09:41:57 -0600 From: Karl Denninger To: dennis Cc: Greg Lehey , hackers@freebsd.org Subject: Re: ifconfig reports bogus netmask References: <3.0.32.19971217100825.00d45930@etinc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.84 In-Reply-To: <3.0.32.19971217100825.00d45930@etinc.com>; from dennis on Wed, Dec 17, 1997 at 10:08:26AM -0500 Sender: owner-freebsd-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Wed, Dec 17, 1997 at 10:08:26AM -0500, dennis wrote: > At 11:34 AM 12/17/97 +1030, Greg Lehey wrote: > Your ISP, unfortunately, most likely uses Ciscos, which CANNOT route to > hosts. Ciscos can only route to nets, so you must set the PTP interface > to a subnet mask. This is a waste of a net and arguably wrong (since there > is, in fact, no network), but we live in a world of ciscoheads. With unix > you only need use 2 addresses per PTP interface..with ciscos you need to > use an entire subnet. > > Dennis Balderdash. CISCOs can run un-numbered interfaces (the proper way to do a PTP link where the terminal end is not a network) and further, can in fact handle and advertise host routes. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly to FULL DS-3 Service | NEW! K56Flex support on ALL modems Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost