How to make Internet Connection Sharing (ICS) on Windows XP

Since the setup of Internet Connection Sharing on Windows XP differs a bit from other windows versions, you can use this special tutorial for setting it up.
To setup ICS on Windows XP, follow this steps:

• Navigate to the windows control panel -> Network Connections
• You should see your network adapter (the one which is connecting you to the internet)
• We need to ensure that your computer has a static IP, so the Playstation later knows where to get the internet connection from.
• So we first need to check what IP your computer currently has.
• To do so, doubleclick your network adapter and go to the "Support" tab.
• This will show your current IP address, e.g. 192.168.0.5 or 10.0.2.15
• Write down the IP somewhere, or copy it to the clipboard.
• Close the window so you're back where your network adapter was displayed
•  Rightclick your network adapter and select "Properties".
• Select "Internet Protocol (TCP/IP)" and then "Properties".
• Select "Use the following IP address".
• Enter:
• IP address: Here enter the IP you wrote down earlier.
• Subnet Mask: 255.255.255.0
• Default gateway: Leave blank
• DNS servers: 8.8.8.8 + 8.8.4.4 (or any other DNS, e.g. OpenDNS)

Now create a L2TP connection according to this special instructions for Windows XP: http://wiki.hidemyass.com/Tutorials:WindowsXP_L2TP_connection_setup
When that is finished and you successfully tested the VPN connection, rightclick that new connection and select "Properties".
Go to the "Advanced" tab. There, check "Allow otzher network users to connect through this computer's internet connection"
and check "Allow other network users to control or disable the shared internet conection"
You can also disable the Windows firewall here under "Settings", which is a good idea if experiencing any kind of connection issues.


That's all - the rest of the configuration has to be done on your external device that should use the VPN (e.g. Playstation, XBOX, NAS, Computer, etc.)
On that device, you need to use this settings:

• IP address:  Should be in the same subnet as your computer. E.g. if your computer is 192.168.0.5, you could use 192.168.0.6
• Subnet Mask: 255.255.255.0
• Default router/Gateway: Here enter the IP of your computer, you set earlier (e.g. 192.168.0.5)
• Primary DNS: Same here.
• Secondary DNS: Same here.