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By Steve Winograd

WinMe ICS can share an Internet connection with two different LANs.  That's just what you need if, say, you have both a wired LAN and a wireless LAN.  The ICS host needs a network adapter for each LAN and one for the shared Internet connection.

Since I didn't have any wireless LAN equipment handy, I added a USB Ethernet adapter to my computer as the secondary network adapter.  It now has three network cards: one for the cable modem, one for the primary LAN (Ethernet NIC), and one for the secondary LAN (USB-Ethernet adapter).  Let's see how to enable the secondary network adapter.


After installing network adapters for both LANs, right click the ICS taskbar icon and select Options to open the ICS Control Panel.  The box for selecting a secondary adapter will be available. Me Two ICS Server - Step 1

Click the down arrow to bring up a list of available secondary adapters.  Select the desired adapter and click OK.Me Two ICS Server - Step 2

Click Yes to restart WinMe.Me Two ICS Server - Step 3

After WinMe restarts, the ICS Control Panel shows both shared adapters.Me Two ICS Server - Step 4

The Network Control Panel now shows two LAN (Home) adapters and a copy of the Internet Connection Sharing protocol bound to each of them.

Me Two ICS Server - Step 5

Me Two ICS Server - Step 6

Check the Properties for the copy of TCP/IP that is bound to each LAN NIC.  The primary adapter should be assigned an IP of 192.168.0.1, with subnet mask 255.255.255.0.   The secondary adapter should be assigned an IP of 192.168.1.1, with subnet mask 255.255.255.0. Both of them act as DHCP servers for the computers connected to them.

The installation is complete.  Computers on both networks can now use the Internet connection simultaneously and independently!


Although ICS' multi-network capability takes care of sharing your Internet connection among multiple LAN types, you won't be able to File and Printer share between machines on the different LAN types.  The computer that runs the ICS server will be able to File and Printer share with machines on both networks, but computers on each LAN will only be able to see each other, and the ICS server.

There is a way around this, but it involves the use of LMHOSTS files on each machine.  See this part of the Mixed-Media-Router HowTo to learn how to set this up.  As you read the article, just think of your multi-networked ICS server as the MMR.



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