I will be getting ADSL soon.  I want to put two network cards in my Linux
server and have it as a firewall.  I will have two dynamic IP addresses
available to use.  Is there anyway that I can do this using dynamic IP
addresses and without something being configured on the ISPs end?

I have one Tower for primary us, one tower that is the Linux Server with the
two NICs, and a laptop that will have an IP address of 192.168.0.x

I need to know how to get my one NIC that will be connected to the ADSL
modem to get it's IP address automatically without dhcpd client!  I also
would like my primary Tower to be able to get one of the IP addresses
through the Linux server!  I was thinking that maybe the Linux server could
get two IP addresses, and release one to the primary Tower?  I also want to
know how this will affect my local network access!  ie, can I do routing
from my primary tower which will have one internet IP address to my
192.168.0.x network without using IPMasquerading?  If not, maybe two way IP
masquerading would work?  If I do do two way IP masquerading, how would I
prevent outsiders from accessing my internal network?

whew that was a long one.  So, anyone have any ideas on any of these
questions?

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