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Today's Topics:
1. DHCPOFFER rejected by rule (Matthew Butch)
2. Re: DHCPOFFER rejected by rule (Bj?rn Mork)
----------------------------------------------------------------------
Message: 1
Date: Thu, 9 Jul 2020 19:24:23 -0400
From: Matthew Butch <apple4e...@me.com>
To: dhcp-users@lists.isc.org
Subject: DHCPOFFER rejected by rule
Message-ID: <c5ca3e80-329c-d09b-ce76-e05ffd5f1...@me.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Here is an issue I can't figure out. I've search to no avail.
I have ISC DHCP running on one server (10.1.1.5) and a Cisco switch
acting as a DHCP relay across VLANs.
dhclient on Ubuntu 16.04 is reporting DHCPOFFER from 10.10.1.1 rejected
by rule 10.10.1.1 mask 255.255.255.255.
Yet there is no reject command in the list. Where is this coming from
and how do I fix?
--
Matthew Butch
"fiat justicia ruat colelum"
(let justice be done though?the heavens may fall)
Sent with Postbox on Mac OS X
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Message: 2
Date: Fri, 10 Jul 2020 09:42:52 +0200
From: Bj?rn Mork <bj...@mork.no>
To: Matthew Butch <apple4e...@me.com>
Cc: dhcp-users@lists.isc.org
Subject: Re: DHCPOFFER rejected by rule
Message-ID: <87r1tjak8z....@miraculix.mork.no>
Content-Type: text/plain; charset=utf-8
Matthew Butch <apple4e...@me.com> writes:
> Here is an issue I can't figure out. I've search to no avail.
>
> I have ISC DHCP running on one server (10.1.1.5) and a Cisco switch
> acting as a DHCP relay across VLANs.
>
> dhclient on Ubuntu 16.04 is reporting DHCPOFFER from 10.10.1.1
> rejected by rule 10.10.1.1 mask 255.255.255.255.
>
> Yet there is no reject command in the list. Where is this coming from
> and how do I fix?
This can be caused by issues with the dhcp client option request
config. See for example
https://bugzilla.gnome.org/show_bug.cgi?id=778430#c10
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854186
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854343
These are related to NetworkManager generated dhclient configs, but the
underlying issue is applicable to any dhclient config with buggy
"request" lines.
Bj?rn
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