How to install and uninstall IPv6 on Windows XP

1. To install IPv6 on your Windows XP computer, follow these steps:
• Click Start, click All Programs, click Accessories, and then click Command Prompt.
• At the command prompt, type netsh int ipv6 install and press the Enter key on your keyboard.
• Close the Command Prompt window.

2. To uninstall IPv6 on your Windows XP computer, follow these steps:
• Click Start, click All Programs, click Accessories, and then click Command Prompt.
• At the command prompt, type: netsh int ipv6 uninstall and press the Enter key on your keyboard.
• Close the Command Prompt window and restart the computer.

IPv6 Address Types

IPv6 currently define three types of addresses:

•   Global Addresses:  IPv6 Global Addresses are the equivalent of public IP Addresses in IPv4.  An example of a global address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. Global Addresses are routable on the IPv6 Internet.

•   Link-Local Addresses: Link-local addresses are similar to APIPA address (169.254.0.0/16) in IPv4. An example of a global address is fe80::8ca1:3a64:a9b3:bc67%13. Link-Local Addresses  are not routable.

•   Unique Local Address:  Unique Local Address is the equivalent of the private addresses in IPv4 (10.0.0.0/8 – 172.16.0.0/12 – 192.168.0.0/16) An example of a Unique Local Address is fd00:dfba:9375:ffff::/12. Unique-Local Addresses are routable within a private network but not on the IPv6 Internet.