Deny DHCP IP to a certain MAC?

[Rick Stevens]

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.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
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-    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.           -
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