Ban Mac-address from DHCP

[Anonymous]

I have a panther server, running as DHCP server. Every day, I see a computer named “PC-Pieter”. This computer is not a computer of our school and is probably connecting via the airport network.

Is it possible to add the mac-address from this computer into the dhcp server so it won’t get an ip-address?

Securing the Airport is not an option at this moment.

[Anonymous]

Ok, thanks. I found that I had to add an “deny” entry into the netinfo config/dhcp directory.

I will try to find more information on how to add the MAC-addresses.
eg. 00:02:a5:2f:da:bb OR 0:2:a5:2f:da:bb, …

[Anonymous]

Great!
I will give it a try. Thanks a lot!

[rwalker]

Note that this should not be considered a “security” setting, but just one to prevent an inadvertent DHCP address from being handed out. It’s rather easy to spoof MAC addresses, so “PC-Pieter” could just change his MAC address. If you are concerned about security, then you will have to adopt other measures (encrypted traffic on your network, etc.).

[Anonymous]

Indeed. At this moment, we are planning to secure the wireless network via WPA. But, we have a large school, so it will take a while before it will work.

Thanks anyway.

[steve]

well don’t do anything too secure over your wireless as WPA can be hacked fairly easily.
personally I will not use wireless, and the sites i look after are all hard wired.

[agerson]

works nice too

[Author]

Posts