[ale] DHCP server and linux and exclusion of MAC addresses

[cfowler at aimgroup.com]

I have a machine that is DHCP'ing off my RH 6.0 machine.  I do not want it to do
that because it does not belong to our company but is on our switch.  These are
Intel 550/510 switches.  Level 3.  Maybe I can prevent it by assigning a VLAN to
his port.  Or I could exclude his MAC in the dhcpd.conf file.  Any help would be
greatly appreciated.

Chris