Date: Fri, 2 Jan 1998 10:55:04 +1030 From: Greg Lehey <grog@lemis.com> To: Brian Somers <brian@awfulhak.org> Cc: John-Mark Gurney <gurney_j@efn.org>, 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 Message-ID: <19980102105504.61189@lemis.com> In-Reply-To: <199801011325.NAA17803@awfulhak.demon.co.uk>; from Brian Somers on Thu, Jan 01, 1998 at 01:25:32PM %2B0000 References: <199801010130.RAA10049@hub.freebsd.org> <199801011325.NAA17803@awfulhak.demon.co.uk>
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On Thu, Jan 01, 1998 at 01:25:32PM +0000, Brian Somers wrote: > [cc'd to joerg and freebsd-hackers] > >> From: John-Mark Gurney <gurney_j@efn.org> (according to the >> message, but the signature looks more like Jörg Wunsch. > >> Brian Somers <brian@awfulhak.org> 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
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