Deny DHCP IP to a certain MAC?

[Lai Zit Seng]

Hi,

You can use 'deny known clients', and then list all the MAC addresses you 
want to ban with a host declaration.

Regards,

.lzs
--
Lai Zit Seng
http://thinkingfarm.com/~lzs/

On Thu, 19 May 2005, Phil wrote:

> I did but it does not provide a way to disable certain MAC addresses...
>
> On 5/19/05, Rick Stevens <rstevens at vitalstream.com> wrote:
>> Phil wrote:
>>> Hi,
>>>
>>> I am running DHCP (also with DDNS) on Fedora Core 2.
>>>
>>> I am getting some instances of blank hostnames getting an IP
>>> address... I want to prevent those people from renewing their IP.
>>>
>>> So I actually have a 2 questions;
>>>
>>> 1- Can I prevent blank host names from getting a DHCP address? (I know
>>> I can deny unknown hosts, but that would require me to enter in all my
>>> known hosts manually, somethign I do not want to do, since there is
>>> over 250 of them)
>>> 2- Since I know their MAC addresses is there a way to deny them a IP from DHCP?
>>
>> Sure.  See the man page for dhcpd.conf, specifically the class and
>> subclass sections and the "hardware ethernet" options.
>> ----------------------------------------------------------------------
>> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
>> - VitalStream, Inc.                       http://www.vitalstream.com -
>> -                                                                    -
>> -    They say when you play a Microsoft CD backwards, you'll hear    -
>> -   Satanic messages, but if you play it forwards, it will install   -
>> -           Windows...which means Satan is in your system.           -
>> ----------------------------------------------------------------------