ignoring specific hosts by MAC address

Keith Neufeld Keith.Neufeld at wichita.edu
Mon Jun 29 23:32:53 UTC 2009

> I need dhcpd to ignore requests from certain MAC addresses but answer
> everything else and give it an address. Is there even a way to do
> this, and if so, how?

Certainly.  Use

group this-group-of-hosts-is-denied-and-logged {
	deny booting;

	host denied-27-f2 { hardware ethernet 00:11:22:33:44:27:f2; }
	host denied-c3-0f { hardware ethernet 00:11:22:33:44:c3:0f; }

group this-group-of-hosts-is-ignored-silently-without-logging {
	ignore booting;

	host denied-59-9b { hardware ethernet 00:11:22:33:44:59:9b; }
	host denied-a9-0b { hardware ethernet 00:11:22:33:44:a9:0b; }

We use this as one piece of our DMCA takedown strategy.

Note that the former can get quite chatty in the log files.
Keith Neufeld
Manager of Data Operations and Network Services
Wichita State University

More information about the dhcp-users mailing list