Also (though this really isn't quite as useful except in smaller home-lab sort of cases, I think), you can configure ISC dhcpd to listen on only one interface.   

Another option is to get the main DHCP admins to set "next-server" and "filename" for your subnet to point at Cobbler so you don't have to run your own DHCP, but this is not always possible.

-- Michael

On Friday, January 6, 2012 at 1:33 AM, Ger Apeldoorn wrote:


you should be able to run dhcpd on your own subnet w/o causing
problems to any other dhcpd servers on other subnets that service you.
to be safe, you can also disable any dhcp helpers on your switch ports
that service you subnet.

This is only true if your network is on a seperate vlan or physical
network. Multiple subnets can coexist on a single vlan, in which case
you would surely cause issues on the LAN.

You could also configure a dhcp server to respond only to known macadresses.

Ger
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