Even if you only have a single PC (no local network to speak
of), the firewall feature of a router provides excellent security, and far better
protection than Windows??™ built-in firewall.
Now, if you don??™t have a router, the alternative is to use the Internet Connection
Sharing (ICS) feature built into Windows, along with a bunch of
cables. To get ICS to work, you??™ll need the following:
??? At least two computers, each with an Ethernet adapter properly
installed and functioning. ICS can be used with both conventional and
wireless networks.
??? One of the computers must have an Internet connection properly set up,
as described in ???Internet Me,??? earlier in this chapter.
??? If you??™re sharing a broadband (DSL or cable) connection, the PC with
the Internet connection must have two Ethernet cards installed. See
Figure 7-19, earlier, for a diagram of this setup.
If your Internet connection is accessed through a router or
you??™ve allocated multiple IP addresses, you don??™t need ICS.
The first step in setting up ICS is to configure the host, the computer with
the Internet connection that will be shared:
1. In the Network and Sharing Center, click the Manage network connections
link. If you haven??™t already done so, open the Views drop-down
and select Details.
2. Here, you should have at least two connections listed: one providing
your Internet, and the other providing access to your LAN. If they??™re not
there, your network is not ready.
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