(I have two computers, both with network cards. One is 10Mbps and one is 100Mbps. The one at 100 is the integrated network card of the ECS690GM-M2. There are two Modems. One of them is 1 LAN interface, and the other is 4 LAN interfaces. Both computers have Windows XP installed. Now I want to form a home LAN, how to do it? (Specific steps!) If you don't know what I said, please put it up, and I will reply in the supplementary question.)