IETF Logo Mail Archive

Re: [dhcwg] What sorts of services does DHCP configure?

Sten Carlsen <stenc@s-carlsen.dk> Tue, 15 October 2013 22:59 UTC

Return-Path: <stenc@s-carlsen.dk>
X-Original-To: dhcwg@ietfa.amsl.com
Delivered-To: dhcwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AE10921F9EE5 for <dhcwg@ietfa.amsl.com>; Tue, 15 Oct 2013 15:59:54 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.532
X-Spam-Level:
X-Spam-Status: No, score=-2.532 tagged_above=-999 required=5 tests=[AWL=0.067, BAYES_00=-2.599, HTML_MESSAGE=0.001, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tI9m0Rb-PogD for <dhcwg@ietfa.amsl.com>; Tue, 15 Oct 2013 15:59:54 -0700 (PDT)
Received: from mail2.s-carlsen.dk (mail2.s-carlsen.dk [IPv6:2001:16d8:dd00:81ac::17]) by ietfa.amsl.com (Postfix) with ESMTP id 4CCF221F93BF for <dhcwg@ietf.org>; Tue, 15 Oct 2013 15:59:46 -0700 (PDT)
Received: from silver3airport.s-carlsen.dk (unknown [IPv6:2001:16d8:dd00:81ac:5ab0:35ff:fe78:122b]) by mail2.s-carlsen.dk (Postfix) with ESMTPA id BC34326C9; Wed, 16 Oct 2013 00:59:45 +0200 (CEST)
Message-ID: <525DC8E1.8050208@s-carlsen.dk>
Date: Wed, 16 Oct 2013 00:59:45 +0200
From: Sten Carlsen <stenc@s-carlsen.dk>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:24.0) Gecko/20100101 Thunderbird/24.0.1
MIME-Version: 1.0
To: Ted Lemon <ted.lemon@nominum.com>
References: <45A697A8FFD7CF48BCF2BE7E106F06040B734A24@xmb-rcd-x04.cisco.com> <771CAC3B-56AD-445E-AC97-75D6CB4521DB@nominum.com> <525DBC60.1080209@s-carlsen.dk> <1ABC4971-1E44-4146-BEF5-A6BB3146E137@nominum.com> <525DC09B.5080703@s-carlsen.dk> <71D33595-0CE9-42CD-A572-D6C80DA9BA74@nominum.com>
In-Reply-To: <71D33595-0CE9-42CD-A572-D6C80DA9BA74@nominum.com>
Content-Type: multipart/alternative; boundary="------------010905030803040008030108"
Cc: "dhcwg@ietf.org WG" <dhcwg@ietf.org>
Subject: Re: [dhcwg] What sorts of services does DHCP configure?
X-BeenThere: dhcwg@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: <dhcwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dhcwg>
List-Post: <mailto:dhcwg@ietf.org>
List-Help: <mailto:dhcwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Oct 2013 22:59:54 -0000

On 16/10/13 00.43, Ted Lemon wrote:
> On Oct 15, 2013, at 6:24 PM, Sten Carlsen <stenc@s-carlsen.dk> wrote:
>> No, I don't think DHCP was involved and it did not work as painless as it should have. I was thinking that DHCP might provide an address to a portal or such that might do the actual work. A bit like the "next server" for TFTP.
> Okay, so just to be clear here, I'm not looking for new applications for DHCP.
Right, that is fine.
>    I'm asking people to tell me if they disagree with my theory that services of this type (a) can't be generally configured by DHCP and (b) aren't typically configured by DHCP at the present time.   Yes, of course you can cobble together some hack using DHCP.
>
> The question is (a) is it _ever_ a good idea, (b) is it safe to enable this behavior by default on all nodes, and (c) if it's not safe, is the behavior in any sense useful?
I tend to look at this from the opposite side, what are the services
that need to be configured and infomation that needs to be delivered?
And as a consequence what are the tools?
What is in the toolbox now and what is missing? Some of the missing
tools are leading to ugly hacks now.
The answer might not be DHCP, but then what is it?

I am still trying to learn more.
>

-- 
Best regards

Sten Carlsen

No improvements come from shouting:

       "MALE BOVINE MANURE!!!"

v2.23.0 | Report a Bug | By Email