Windows XP ICS Setup - Cable Modem

This section is how you get Windows XP to use Internet Connection sharing when you have a Cable Modem connection with the computer connected to the cable modem via NIC (1) and NIC (2) going to a hub (or a crossover cable to the other computer) and then having the secondary computer plugged into the hub also.

1. First off, left click on the "Start Button" on your taskbar. You will then right click "My Network Places" and select "Properties":

Now, in this window you should see an icon for "Local Area Connection" and "Local Area Connection 2" for both of your NIC's.

2. Next, you will want to right click on the Network Area Connection icon that connects to your cable modem, and once again select "Properties" from the drop down window. That will open up a window that looks like this:

3. Now, you should notice at the top of the window there are 3 tabs. The tab furthest to your right is the "Advanced" tab. That is where we will want to go next. Click on the Advanced Tab and it brings you to this part of the window:

4. As you can see, the box next to "Enable Internet Connection Sharing for this connection" is checked, however on your computer it will not be checked. Simply check the box and hit "OK" to share your connection through this NIC.

5. Now, double check the properties for your other NIC (connected to your LAN) to ensure that they are setup correctly to use ICS. At the "My Network Places" Window, Right click on your "Local Area Connection 2" Icon and select Properties from the drop down menu. This will bring up a window that looks like this:

Now, to check the TCP/IP settings, Simply double click on the "Internet Protocol (TCP/IP)" line, or highlight it and then click the "Properties" button beneath it. This will bring you to this window:

Your TCP/IP Properties should look exactly like this as well. If they do not, then there is a problem somewhere.