As an example, let say you have 10 computers and 2 network switches, and need to create 2 networks that can access Internet, so how to do it? Some more information, one of the computers is equipped with 2 network cards and one of the network cards is connected to cable / DSL modem to access Internet, so this computer will act as a router!
Configure the network cards on the router with following information.
Router (Must Windows XP Professional)
Network Card A (connect to Internet via cable / dsl connection)
This information will be based on the Internet connection service which you have subscribed.
IP: 192.168.1.1
Netmask: 255.255.255.0
Gateway (GW): 192.168.1.1
Network Card B (connect to network A):
IP: 192.168.0.1
Netmask: 255.255.255.0
Gateway (GW): [leave it blank]
Configure all the computers in network B with following information.
Network B
IP: 192.168.0.2-254
Netmask: 255.255.255.0
Gateway (GW): 192.168.0.1
1. Go to Start and click Run…, then type in regedit to run registry editor.
Note: Please note that only System Administrator can run registry editor.
2. Registry editor window will appear. Browse for the following registry key at the left hand side window:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters
Right click IPEnableRouter registry object, and click Modify.
Note: Be extra careful when you deal with registry editor, wrong editing will crash you Windows OS.
3. The IPEnableRouter window will appear. Type 1 as Value data and click OK.
4. Close the regisrty editor and reboot the computer. After rebooting, all the computers should be able to access Internet and also share the file/printer between network A and B.
Note: When I did the test, IP forwarding will only work after rebooting the computer. So don't forget to do it. Read More...
