Earthlink, DHCP, MS2000, & Linux

Help Please.

Here's the obligatory background: Was running Intel DSL, Windows2000Pro
to the outside (the external interface was the Intel modem, an internal card). Home
LAN includes 3 other boxes: a couple Windows flavors and a Mandrake.

Here's the lament: Intel is apparently getting out of the DSL business, promoting MSN,
which I bit on. After 12 hours with MSN I had an attitude (way too in bed with M$), and
within 24 hours I'd cut bait and gone with Earthlink.

Here's the rub: Earthlink has an external modem (a ZyXTEL Prestige 600) that hooks into a NIC
(in my case a LinkSys. So Windows2000Pro has 2 NICs, one web-side, one LAN-side). The home LAN is fine,
but I've lost internet connection sharing. The only box getting out is the Windows2000Pro I'm using as a
(web) server. (BackOffice is loaded on another machine as the LAN server, inconsequential in this mix.)

Windows2000 has a static IP, all others are DHCP, but none are finding the server to get their
IPs and get out.

I want to keep MS as the web and LAN servers (I know, I know). I'm obviously not getting NIC - NIC - ZyXTEL
shaking hands. What in the configuring bejeebers am I missing? Without belaboring the machinations, I've
tried the obvious. I certainly want Linux to get out, but will also happily accept solutions for the Windows
DHCP problem, too :-)

Suggestions, please.

V.J. Eaton
__________________________________________________
My opinions and those of my employer are sometimes
different, for which my mother apologizes.