From owner-freebsd-bugs Thu Jan 1 16:27:10 1998 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id QAA22247 for bugs-outgoing; Thu, 1 Jan 1998 16:27:10 -0800 (PST) (envelope-from owner-freebsd-bugs) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id QAA22194; Thu, 1 Jan 1998 16:25:54 -0800 (PST) (envelope-from grog@lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.8.7/8.8.5) with ESMTP id KAA16092; Fri, 2 Jan 1998 10:55:06 +1030 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.8.8/8.8.7) id KAA27236; Fri, 2 Jan 1998 10:55:05 +1030 (CST) (envelope-from grog) Message-ID: <19980102105504.61189@lemis.com> Date: Fri, 2 Jan 1998 10:55:04 +1030 From: Greg Lehey To: Brian Somers Cc: John-Mark Gurney , freebsd-bugs@hub.freebsd.org, freebsd-hackers@FreeBSD.ORG, joerg@FreeBSD.ORG Subject: Re: kern/5404: slXX slip (tun & ppp) interfaces always point to point References: <199801010130.RAA10049@hub.freebsd.org> <199801011325.NAA17803@awfulhak.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Mailer: Mutt 0.84e In-Reply-To: <199801011325.NAA17803@awfulhak.demon.co.uk>; from Brian Somers on Thu, Jan 01, 1998 at 01:25:32PM +0000 Organisation: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 WWW-Home-Page: http://www.lemis.com/~grog Sender: owner-freebsd-bugs@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, Jan 01, 1998 at 01:25:32PM +0000, Brian Somers wrote: > [cc'd to joerg and freebsd-hackers] > >> From: John-Mark Gurney (according to the >> message, but the signature looks more like Jörg Wunsch. > >> Brian Somers wrote: >> >>> I agree, and I'll implement the change unless someone has a good >>> reason not to..... any takers ? >> >> I think it's really best to just not display the netmask in the output >> of ifconfig iff IFF_POINTOPOINT is set. While I agree that the net mask makes no sense on a point-to-point link, many people don't. My ISP (Telstra) asks me to set a net mask of 0xffffffc0 on my link. I wonder why. If the ifconfig command doesn't show the net mask, it can cause a lot of confusion (even more than exists currently). >> Routes to the remote end apart from the implied host route seem to be >> dangerous to me, and they break the current behaviour (i.e. could >> cause surprises for people who are used to how it's done now). I don't know what you mean here (I didn't see the original message). In almost every case, you have a route to the remote end, usually a default route. I'm guessing that you mean something else. >> It's not always that the IP address of the remote end is indeed >> identical with the remote network address. Ah. You're thinking about implied routes to the rest of the address space in which the remote end is located? Indeed. Telstra insists that I use one of their addresses at this end of the link. There's no other Telstra address here. Presumably *they* don't use an 0xffffffc0 net mask on this link :-) Greg