Question: Working with IPv6 Time Required: 15 minutes Objective: Use ipconfig and ping with IPv6 and change an IPv6 interface address. Required Tools and Equipment: Net-XX, the address of another computer with an IPv6 address Description: Your company has plans to move to IPv6. Because you haven't used IPv6, you want to become comfortable with using common tools, such as ipconfig and ping.
1. Log on to Net-XX as NetAdmin, and open an elevated (admin) command prompt window, if necessary.
2. Type ipconfig and press Enter. Find the output line starting with "Link-local IPv6 Address." Notice that the assigned address starts with fe80::. The fe80 indicates a link-local IPv6 address, and the :: indicates a string of 0 values-in this case, three consecutive 0 values. The rest of the address (64 bits) has been assigned randomly by Windows.
3. Type ping ::1 and press Enter. Windows replies because you just pinged your own computer. Type ping -a ::1 and press Enter. The -a option tells Windows to display the hostname for the ::1 address, which is the name of your computer.
4. Type ping 2001:db8::XX (replacing XX with the address of another computer on the network) and press Enter. You should get a reply from the other computer. Type ping -6 Net-XX (replacing XX with the name of another computer on the network) and press Enter. The -6 option tells ping to use IPv6 addresses. You should get a reply from the other computer, but it will probably come from the other computer's linklocal (fe80) address.
5. Type getmac and press Enter to display your computer's MAC address. Make a note of this address:
6. Type netsh interface ipv6 set global randomize identifiers=disabled and press Enter. The interface is now using the EUI-64 format to assign the link-local IPv6 address.
7. Type ipconfig and press Enter. Notice that the last 64 bits of the IPv6 address now look like your MAC address, with the addition of fffe after the first 24 bits and 02 instead of the first 00 of your MAC address.
8. Close the command prompt window, and log off.