I'm not familiar with how dhcpd will be set up on 6.2, but on 7.2 you can edit /etc/sysconfig/dhcpd and add eth1 to your DHCPDARGS so that the server only listens on eth1. (My whole file reads: #Command line options here DHCPDARGS=eth1 ) Same thing as what Mr. Feist told you to do, but if you add it here, then you don't have to worry about it anymore.