DSL Cable on network

If you hook up the boxes as you described:

Cable---cablemodem----server---router----hub---allcomputers

then the router has no valid internet address (because the server has it). Even if the server routes traffic between the net and the router,the traffic to the net appears to be originating at the router, which has an invalid address. The server would have to have the capability to do NAT to make this work, and that takes the very expensive Proxy product.

Typically this configuration would be set up as:

Cable---cablemodem----router----hub---allcomputers

The cable modem typically provides one address to the inside. Your router takes this one address, and uses it to communiate with the net. It provides Network Address Translation (NAT) for all of the computers behind the router, including the server.

Note that if your server needs to be accessable from the outside, this may be a problem, since the server address is not visible from the outside. Some routers get aroundthis problem by allowing you to specify that traffic to the router on certain ports be automatically forwarded to a particular box behind the router (such as port 25 to a mail server). Your router manual should have this information.

Good luck.