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Windows 2000 Professional TCP/IP Routing
You can install multiple network adapters in a
Windows 2000 Professional system.
To enable Windows 2000 in such a case (System#2 in the graphic
below) to enable
System #1 and System#3 to communicate with each other, System #2
has to handle
the Routing of the network traffic, it has to act as a "Router"
:
What are the possibilities for System #2 using Windows9x, NT4 and
Windows 2000 ?
Windows95/98/ME
is able to work as a router using a registry entry ( NOT supported by
Microsoft ) :
 |
Windows NT4 Workstation
and Server fully support IP routing: it is activated in the Network configuration, tab: "Protocols" ,then display the properties of the TCP/IP-protocol, tab "Routing" : place a checkmark on "Enable IP Forwarding" |
All
documentation on Windows 2000 shows that routing on multiple
network adapters is
activated in "RRAS" : Routing
and Remote Access Service.
But RRAS is not part of Windows 2000 Professional.
Searching the Microsoft Website , I found:
 |
TCP/IP Troubleshooting
|
Enabling IP Routing
By default, IP routing is disabled. To enable IP
routing, you must allow the computer to
forward IP packets it receives. This requires a change to the
Windows 2000 system registry.
When you enable the Routing and Remote Access service for IP
routing,
this registry entry is made automatically.
To enable IP routing
1 .From the Start menu, click Run.
2.Type regedt32.exe or regedit.exe, and then click OK.
3.In a registry editor, navigate to
HKEY_LOCAL_MACHINE \SYSTEM\CurrentControlSet\Services\Tcpip
\Parameters
4. Select the "IPEnableRouter" entry.
5. To enable IP routing for all network connections installed and
used by this computer, assign a value of 1.
To do this in regedit.exe, right-click the entry, and then click
Modify.
In regedt32.exe, click on the wanted entry, click on Edit, and
then click on the appropriate menu choice.
6.Close the registry editor.
It is required to reboot Windows 2000 for this change to take
effect.
I have used this in a configuration, where
the Windows 2000 Professional system works
as a router between an Ethernet network and a USB-network.
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