I'm connected to the internet using AT&T Broadband internet on ETH1 and my internal network (10.10.5.*/24) on ETH0. I want to setup DHCP for my intenral network, but when I setup /etc/dhcp.conf and start the dhcpd daemon I get a message stating I need to enter a subnet declaration for the AT&T network also. How can I get DHCP setup for my internal network and disregard AT&T, I don't want to inadvertantly server DHCP to AT&T, that would be BAD. Thanks for any help

Let's see.. Fist of all you run dhcpcd on eth1 which is the daemon client correct? And you are looking to run dhcpd which is the server daemon. They are two different programs with two different configuration files.

..:
dhcpd.conf
dhcpd.leases

The second one can be empty, but it has to be created using touch or emacs. I think they reside in /etc/ and /etc/dhcpd/ or something like that.

Try the man pages for the configuration file:
http://www.tac.eu.org/cgi-bin/man-cgi?dhcpd.conf+5

I currently use DHCPD from ISC. If you download it there are very well written documents inside of it. I was able to install fairly easily.
I would suggest getting version 2 from this site: ISC

dhcpd tries to start broadcasting on all eth devices by default unless you give it the argument of an eth device. Also, I'm pretty certain you have to ifconfig your card up to be on whatever subnet you're going to be broadcasting to before you start the daemon. For instance, a .conf file like:

subnet 192.168.0.0 netmask 255.255.255.0 {
option routers 192.168.0.1;
option subnet-mask 255.255.255.0;
option domain-name-servers 64.30.160.2;
option time-offset -5; # Eastern Standard Time
range dynamic-bootp 192.168.0.10 192.168.0.240;
default-lease-time 86400;
}

in /home/bob/

would be invoked on eth0 with:

dhcpd eth0 -cf /home/bob/dhcpd.conf

The default is to look in /etc so you probably don't need the -cf flag, I've just got a number of .conf files depending on the week and the house derangement, but having a couple is an easy way to test and debug.

Cheers,

Finegan