Date: Fri, 6 Nov 98 09:29:48 +0100 From: Thierry.Herbelot@alcatel.fr To: brian@Awfulhak.org Cc: questions@FreeBSD.ORG Subject: Re: unnumbered links in PPP ? Message-ID: <H000057c019c9a89@MHS> In-Reply-To: <199811060200.CAA27625@woof.lan.awfulhak.org>
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Hi, My first question was not clear enough - apologies. .. ;-) I found "unnumbered" links in the OSPF RFC (rfc2328 is the last version) <quote rfc> RFC 2328 OSPF Version 2 April 1998 IP interface address The IP protocol address for this interface. This uniquely identifies the router over the entire internet. An IP address is not required on point-to-point networks. Such a point-to-point network is called "unnumbered". </quote> In unnumbered links, each endpoint of a point-to-point link is anonymous and takes its IP address from the router id itself (if a router has 3 ppp links, each will have the same "IP address" - they will be singled out by the IP address of the other endpoint). This allows to save IP addresses and to not use private IP addresses on a backbone network. So back to the initial question : can the IP stack of FreeBSD support such links ? (I don't know what could be the result of an ifconfig request on such links, for example) Hoping my question is a bit clearer this time TfH > > Hello, > > > > I've just looked at the man page for 2.2.7-R PPP and I don't find any > > mention of unnumbered links (which allows not to assign an IP address to > > each extremity of a PPP link). > > > > Q : will there be any support for PPP unnumbered links in FreeBSD ? (I > > understand it's perhaps not technically possible, due to the way routing > > is implemented in a BSD kernel) > > What do you mean by unnumbered ? If you mean that you want on demand > dialing, take a look at the -auto switch. > > > TIA > > TfH > > -- > Brian <brian@Awfulhak.org>, <brian@FreeBSD.org>, <brian@OpenBSD.org> > <http://www.Awfulhak.org>; > Don't _EVER_ lose your sense of humour.... > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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