Re: [Autoconf] what's a router

Alexandru Petrescu <alexandru.petrescu@gmail.com> Thu, 05 August 2010 11:44 UTC

Return-Path: <alexandru.petrescu@gmail.com>
X-Original-To: autoconf@core3.amsl.com
Delivered-To: autoconf@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0BE613A6912 for <autoconf@core3.amsl.com>; Thu, 5 Aug 2010 04:44:01 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.157
X-Spam-Level:
X-Spam-Status: No, score=-2.157 tagged_above=-999 required=5 tests=[AWL=0.092, BAYES_00=-2.599, HELO_EQ_FR=0.35]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6CQxNpKP3cp3 for <autoconf@core3.amsl.com>; Thu, 5 Aug 2010 04:44:00 -0700 (PDT)
Received: from sainfoin-out.extra.cea.fr (sainfoin-out.extra.cea.fr [132.166.172.107]) by core3.amsl.com (Postfix) with ESMTP id D4CFE3A686B for <autoconf@ietf.org>; Thu, 5 Aug 2010 04:43:59 -0700 (PDT)
Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21]) by sainfoin.extra.cea.fr (8.14.2/8.14.2/CEAnet-Internet-out-2.0) with ESMTP id o75BiT0f017026 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 5 Aug 2010 13:44:29 +0200
Received: from muguet1.intra.cea.fr (muguet1.intra.cea.fr [132.166.192.6]) by pisaure.intra.cea.fr (8.14.4/8.14.4) with ESMTP id o75BiTKi015792; Thu, 5 Aug 2010 13:44:29 +0200 (envelope-from alexandru.petrescu@gmail.com)
Received: from [127.0.0.1] ([132.166.133.173]) by muguet1.intra.cea.fr (8.13.8/8.13.8/CEAnet-Intranet-out-1.1) with ESMTP id o75BiTbe013930; Thu, 5 Aug 2010 13:44:29 +0200
Message-ID: <4C5AA41D.8070801@gmail.com>
Date: Thu, 05 Aug 2010 13:44:29 +0200
From: Alexandru Petrescu <alexandru.petrescu@gmail.com>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.9.2.7) Gecko/20100713 Thunderbird/3.1.1
MIME-Version: 1.0
To: Teco Boot <teco@inf-net.nl>
References: <4C528979.7010006@oracle.com> <201008051133.32630.henning.rogge@fkie.fraunhofer.de> <4C5A86DD.1050907@gmail.com> <201008051142.48619.henning.rogge@fkie.fraunhofer.de> <4C5A8B9A.90904@gmail.com> <8983D881-73CA-4C3B-AEAF-2AFBB5E58751@inf-net.nl>
In-Reply-To: <8983D881-73CA-4C3B-AEAF-2AFBB5E58751@inf-net.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit
Cc: "autoconf@ietf.org autoconf@ietf.org" <autoconf@ietf.org>
Subject: Re: [Autoconf] what's a router
X-BeenThere: autoconf@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Ad-Hoc Network Autoconfiguration WG discussion list <autoconf.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/autoconf>, <mailto:autoconf-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/autoconf>
List-Post: <mailto:autoconf@ietf.org>
List-Help: <mailto:autoconf-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/autoconf>, <mailto:autoconf-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 05 Aug 2010 11:44:01 -0000

Le 05/08/2010 12:21, Teco Boot a écrit :
>
> Op 5 aug 2010, om 11:59 heeft Alexandru Petrescu het volgende
> geschreven:
>
>> Well, are MANET routers 'routers' at all?
>
> Yes.
>
>
>> Does a MANET router execute the longest-prefix match algorithm?
>
> Yes. Every router MUST. This is Router Requirement (RFC 1812, page
> 75) And many other RFCs. Dig yourself.
 >
> Also applies to hosts.

Hmmm the rfc1812 title says "Reqs for IPv4 Routers" (not hosts)...

>> Does a MANET router select an output interface depending on the
>> result of that agorithm?  Or is it just doing it with always the
>> same result?
>
> Also RFC 1812.

Are MANET Routers referring to RFC1812?  BEcause RFC1812 says:
> (1) If a host has only a single constituent-network interface, it
> should not act as a router.

To me that reads that if a device has a single interface then it can't
act as a router.

Also rfc1812 says:
> An Internet router performs the following functions:
[...]
> (2) Interfaces to two or more packet networks.

Since MANET is so vaguely defined, because of the undetermined link
connectivity properties, one wouldn't say that a MANET Router is an
Internet Router.

>>> And you don't need any header files like route.h on a router,
>>> just on your development system. I don't think you will find
>>> many embedded routers (DSL, MANET, ...) with header files on
>>> them.
>>
>> WEll... the /usr/include stuff is there everywhere in the deployed
>> routers running binaries.  E.g. linux phones.  I think a device
>> that boots a kernel has a file system and that should have a
>> /usr/include.
>
> Pure non-info.

WEll.  There are file systems and dynamically compressed file systems.
There are off-the-shelf kernels and home-brewed re-compiled kernels.

Few things are pure :-)

Alex

>
>
> Teco.
>
>
>> Alex
>>
>>>
>>> Henning Rogge
>>
>>
>> _______________________________________________ Autoconf mailing
>> list Autoconf@ietf.org
>> https://www.ietf.org/mailman/listinfo/autoconf
>
>