Case 3) Starting from scratch
If you don't have an existing network, and wireless clients are a part of your plan, then build your network around a wireless router. Wireless routers will share your Internet connection, provide basic firewall protection, and allow you to build your network with both Ethernet (wired) and wireless clients. Figure 3 shows you how to get hooked up using this method.
Figure 3 - Network using a Wireless Router