DHCP Wildcard issue
niall.oreilly at ucd.ie
Tue Dec 10 18:20:28 UTC 2013
On 10 Dec 2013, at 17:19, Hauck, Jeffrey <hauck at usgs.gov> wrote:
> I have been struggling to get the DHCP MAC address wildcard working. I have been through a bunch of documentation and forum searches but nothing seems to be the right fix.
> Below is the entire dhcpd.conf file. Any ideas where the issue is?
[dhcpd.conf not copied from original message]
The distinction between ‘known’ and ‘unknown’ clients is made by
the ‘host’ declaration. Your configuration appears not to have
any such; consequently, ALL of your clients are ‘unknown’. In
addition, some of them no doubt belong the the “vdi” class, and
so are eligible for either declared pool.
Which pool a given client ends up in will depend on the client’s
history (recorded in the leases file) and the (effectively
accidental) order in which the server visits the pools to
determine whether the client is eligible.
I’ve found it necessary to use the ‘deny’ directive to steer
through circumstances not entirely unlike yours, but
sufficiently different that I’m not sure how best to fit this
trick to your needs. Since the ‘known’/‘unknown’ distinction
isn’t available in your configuration, it may be sufficient to
replace 'allow unknown-clients;’ with ‘deny members of "vdi”;’.
I’m afraid some more struggling is inevitable, but hope this
will be of some help to you.
University College Dublin IT Services
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