[K12OSN] deny IP based on MAC address....how?
Jim Hays
haysja at sages.us
Mon Oct 4 00:48:20 UTC 2004
try looking at
man dhcpd
and serch for deny
That may have the info you want.
Quoting David Trask <dtrask at vcs.u52.k12.me.us>:
> Hi all,
>
> I have a situation....I have an IP address that I believe is infected with
> a worm that putting significant traffic on my network. The IP address is
> internal and I don't for the life of me know where it is. I've tried
> everything to find it. I know the MAC address from the logs on my DHCP
> server....what I'd like to do is prevent that MAC address from even
> getting an IP address. Is this possible? I'm using an FC 1 server as my
> DHCP server (that's all that particular server does...just DHCP). I have
> no desire to populate my entire dhcpd.conf file with all the MAC addresses
> in my building....there's too many. What I simply want to do is deny
> giving an IP address to a particular machine (whose MAC address I
> know)....and/or deny access to my network (from inside) to that IP
> address. (I've statically assigned that IP to that MAC in my dhcpd.conf
> so I can at least track it, but now I need to shut it down) Any ideas?
>
> David N. Trask
> Technology Teacher/Coordinator
> Vassalboro Community School
> dtrask at vcs.u52.k12.me.us
> (207)923-3100
>
> _______________________________________________
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> K12OSN at redhat.com
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> For more info see <http://www.k12os.org>
>
-----------------------------------------
Jim Hays
Technology Director
Monticello CUSD#25
Monticello, IL 61856
-----------------------------------------
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