Question : Dlink wireless router setup

Hi
I'm helping a co-worker installing a wireless dlink  router on his home,so that he can use his laptop anywhere in the house,the scenario is the isp issue one ip only, the isp cannot see the router to assign an ip on the wan,it's ok, we manage to connect the router to a desktop computer that is always on, we have a second network card on the desktop computer,the picture is: from the isp modem to the desktop nic1, from the dektop nic 2 to the Dlink router ,now the problem is I'm sharing nic1 to provide the wireless laptop a connection ,I tried anything and always get conflics, is there a trick or simple way to do this,
thanks
Ibby

Answer : Dlink wireless router setup

OK, ok, here's the ideal setup in my opinion.
                                                  -----PC
ISP--->Cable Modem---->Router<
                                                  -----Laptop

So basically you have the Cable modem plugged into the WAN side of the router and the PC connected to the LAN side and the Laptop will connect wirelessly to the LAN side.

You only need one NIC in the PC.

If you have a static IP address, go to the settings on the router and give it that address....for example 65.13.24..34 (or whatever)
If you have dynamic IP than set the router to Obtain Address Auto in the WAN settings.

Enable DHCP on the router, the router will assign IP addresses to the PC and Latop with addresses like 192.168.0.2 and 192.168.0.3 and the router's ip on the LAN side will be 192.168.0.1

If you dont want to use DHCP for the LAN side and want to assign IP addresses manually.  Then set them to the same subnet.  Most of the time you use 192.168.0.something - subnet mask 255.255.255.0 and the gateway will be 192.168.0.1

So here's what we've got
                                                WAN                        LAN           /-----pc 192.168.0.2  mask 255.255.255.0 gateway 192.168.0.1
ISP--->Cable Modem------->65.12.34.45-ROUTER-192.168.150.1<
                                                                                               \-----laptop 192.168.0.3 mask 255.255.255.0 gateway 192.168.0.1

If you use DHCP, all these settings should be set for you.

If he wants to add additional computers, it's pretty easy, just plug em into the LAN side of the router and either use DHCP or assign them the next available ip (in this example 192.168.0.4)