command to ignore certain macs?
John Wobus
jw354 at cornell.edu
Fri Oct 3 20:03:33 UTC 2008
Look up 'deny booting' and 'ignore booting' in the dhcpd.conf man page.
Typical configuration looks like this:
host roguecomputer245 {hardware ethernet 00:44:ac:ac:d3:04; deny
booting;}
(This is a global line within the config file :)
My recollection is that the difference between 'deny' and 'ignore' is
that one of the two methods
puts a line in the DHCP log, the other does not. I don't recall which
is which.
John
On Oct 2, 2008, at 7:42 PM, Jim Pazarena wrote:
> Is there a way to specify a list of MACs which should NOT
> be assigned an IP?
>
> I have a few rogue computers accessing my network, and acquiring
> an IP from my pool. Rather than create a whitelist, I would prefer
> to create some sort of blacklist 'DO NOT TALK TO THESE MACS'.
> Is this possible?
>
> Thanks.
>
> The only other way I can think of blocking them, is to create some
> other private network range, become authoritative for it, and assign
> these
> rogues an IP from the new range (which will go nowhere because it
> wouldn't
> actually exist).
>
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