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.
Click the down arrow to bring up a list of available secondary
adapters. Select the desired adapter and click OK.
Click Yes to restart WinMe.
After WinMe restarts, the ICS Control Panel shows both
The Network Control Panel now shows two LAN (Home) adapters and
a copy of the Internet Connection Sharing protocol bound to each
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!
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
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.