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From: Bruce Ferrell <bferrell@baywinds.org>
To: Bernd Eckenfels <ecki@lina.inka.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: unnumbered interfaces? - OT
Date: Fri, 02 Nov 2001 13:57:34 -0800	[thread overview]
Message-ID: <3BE316CE.8ABA1454@baywinds.org> (raw)
In-Reply-To: <E15zV7P-0003pM-00@calista.inka.de>



Bernd Eckenfels wrote:
> 
> In article <200111011522.QAA22531@zhadum.sara.nl> you wrote:
> >> I'm trying to understand unnumbered interfaces.  From
> >> searching the web, they seem to be point-to-point links
> >> that do not have IP numbers (hence the name).

They are in fact, used for point-to-point links.  It allows someone to
build a kind of distributed router; Kind of like the old IBM remote
bridge arrangemets.  Those had either a token ring or ethernet card and
a WAN card of some kind (usually SDLC or X.25) connecting them
together.  Kind of cool in a weird, expensive sort of way.

> It is Cisco Speak. In Linux you simply give the Interface an IP Address of
> an exisiting Interface, and then you have an "unnumbered" interface. It
> simply means it does not add an additional address.
> 
> Routing in modern operating systems is so easy and natural with interface
> and host routes, dont worry about cisco legacy.
> 
> Greetings
> Bernd
> -
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      reply	other threads:[~2001-11-02 21:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-23 23:55 unnumbered interfaces? Mark Clayton
2001-11-01 15:22 ` Remco Post
2001-11-01 20:14   ` Dan Hollis
2001-11-02  3:35   ` Bernd Eckenfels
2001-11-02 21:57     ` Bruce Ferrell [this message]

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