I have a stupid newbie DHCP question.

I am configuring a firewall for my cable modem.  I have two NICs in the
box.  eth0 is configured to obtain an IP address through DHCP (from the
cable modem).  eth1 is a static IP (10.0.0.3) that services the interior
network.  I would like to setup DHCP for a laptop on my internal
network.  My question is, what would prevent my firewall box from
grabbing an IP address from my internal DHCP server versus the cable
modem?  I was thinking about this because some people were saying how
rogue DHCP servers running on boxes plugged into the network at the last
Installfest were causing problems.

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Perry Hoekstra
E-Commerce Architect
Talent Software Services
perry.hoekstra at talentemail.com