Hello,
You can setup and configure DHCP server in the W2k3 server that is connected to the ADSL router and add 003 scope option in the DHCP to be the ip address of the ADSL router. Configure your client machines TCP/IP properties to obtain ip addresses automatically. Also, in the TCP/IP properties of the W2k3 server in the default gateway field write the ip address of the ADSL router and its recommended to use a static ip address for the server not from DHCP range to avoid ip conflicts.
But, about the DNS information in order to resolve internet names you have to write the ip addresses that the service provider gave you. Add an additional 006 scope option in DHCP and write the ISP DNS addresses. Configure your client machines to obtain DNS automatically.
About file sharing , simply install "File and printer sharing for Microsoft Networks" which is by default installed and just share the folders by right-clicking .
I have to ask you first , is this W2k3 server got two network cards? if so, then you will benefit from NATing for more security but the NAT is not the topic here i think and the topic is just to connect your clients to the internet and gain access to file sharing.
I wish this can help your issue.
This post has been edited by Ahmed-26: 23 September 2005 - 02:07 PM