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Today's Topics:
1. Re: Only allow pool range nothing else (Bruce Hudson)
2. Is it possible to assign 2 ip addresses from different subnet
to an dhcp request? (Marc Roos)
3. Re: Is it possible to assign 2 ip addresses from different
subnet to an dhcp request? (Simon Hobson)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Aug 2019 10:08:19 -0300
From: Bruce Hudson <bruce.hud...@dal.ca>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Only allow pool range nothing else
Message-ID: <20190821130819.ga17...@kil-bah-1.its.dal.ca>
Content-Type: text/plain; charset=iso-8859-1
On Tue, Aug 20, 2019 at 08:32:25PM -0400, Bill Shirley wrote:
> You've only shown us one pool.? The other pools should have a line:
> deny members of "testing";
This is basically true but any pool that already has an allow
statement already has an implicit deny for everything else. Beware
mixing explicit allows and denies in the same pool. It acts oddly.
Marc, you should remove the "deny unknown-clients" from your
testing pool.
--
Bruce A. Hudson | bruce.hud...@dal.ca
ITS, Networks and Systems |
Dalhousie University |
Halifax, Nova Scotia, Canada | (902) 494-3405
------------------------------
Message: 2
Date: Wed, 21 Aug 2019 23:06:57 +0200
From: "Marc Roos" <m.r...@f1-outsourcing.eu>
To: dhcp-users <dhcp-users@lists.isc.org>
Subject: Is it possible to assign 2 ip addresses from different subnet
to an dhcp request?
Message-ID: <"H00000710014cbf2.1566421617.sx.f1-outsourcing.eu*"@MHS>
Content-Type: text/plain; charset="US-ASCII"
Is it possible to assign 2 ip addresses from different subnets to a dhcp
request? So the receiving client should configure eth0 and eth0:1.
------------------------------
Message: 3
Date: Wed, 21 Aug 2019 22:17:39 +0100
From: Simon Hobson <dh...@thehobsons.co.uk>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Is it possible to assign 2 ip addresses from different
subnet to an dhcp request?
Message-ID: <7dbe14df-afef-4dcc-9c7f-4a06ac45f...@thehobsons.co.uk>
Content-Type: text/plain; charset=us-ascii
Marc Roos <m.r...@f1-outsourcing.eu> wrote:
> Is it possible to assign 2 ip addresses from different subnets to a dhcp
> request? So the receiving client should configure eth0 and eth0:1.
Yes, you just need to arrange for a client to make separate requests using
different Client-IDs
BTW, using eth0:1 for additional addresses is rather outdated - and IME of
little utility. All I've ever done for years is just add the addresses to the
base interface, as in :
ip addr add a.b.c.d/nn dev eth0
Also note that you cannot bind a DHCP client to such an interface either. Since
it has to handle broadcast messages, the system is unable to differentiate
between broadcast messages to be handled by eth0 and broadcast messages to be
handled by eth0:1.
------------------------------
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