Deny DHCP Address by MAC?

[Tim Evans]

On 07/16/10 16:38, Jeff Wieland wrote:
> What we usually do is to create a class called something like "black-hole",
> and then use subclasses to match on it. Something like:
>
> class "black-hole" {
> match substring (hardware, 1, 6);
> # deny booting;
> ignore booting;
> }
> subclass "black-hole" 00:12:ba:1d:c1:b7;
> subclass "black-hole" 00:12:df:b6:7b:e7;
>
> You can have as many of the "subclass" statements as you need. This uses an
> ignore booting command, which causes dhcpd to do nothing when it see that
> MAC address. If you comment out the "ignore booting" and uncomment the
> "deny booting", it will send an DHCPNAK (IIRC) to the client instead.

Thanks.  Does simply restarting dhcpd after this sort of edit to the 
conf file take away the outstanding lease? If not, how to do so?
-- 
Tim Evans, TKEvans.com, Inc.	|   5 Chestnut Court
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