View the auto-assigned address. Windows automatically assigns an IPv6 address, simi- Ping the local loopback address. This can be done by typing ping::1. The results

90 | Lesson 4 Figure 4-13 Testing the IPv6 loopback address with ping

5. Ping another computer on the network that is also running IPv6. Do so by pinging its

IPv6 link-local address. For example:

a. Ping by IPv6 address:

Example: Ping fe80::5549:3176:540a:3e0910 The exact IP address will be different depending on what computer you ping. Your results should look similar to Figure 4-14.

b. Ping by host name:

Example: ping computer1 Figure 4-14 Testing another computer’s IPv6 link-local address with ping

6. Attempt to ping an IPv6 host on the Internet. Results will vary depending on your

network configuration and other factors:

a. Ping by domain name:

ping –6 ipv6.google.com. Your results should look similar to Figure 4-15. Figure 4-15 Pinging ipv6.google.com

b. Ping by IPv6 address:

ping 2001:4860:800f::68. As of the writing of this book, this is the correspond- ing IP address for ipv6.google.com. If it doesn’t work, simply look at your results from step 6a. The correct IPv6 address should be listed on the fi rst line. Notice the extent to which this address is truncated. Your results should look similar to Figure 4-16. Understanding Internet Protocol | 91 Figure 4-16 Pinging ipv6.google.com using an IPv6 address

7. Configure a global unicast address in the GUI:

a. This can be done in the Internet Protocol Version 6 Properties dialog box. Just

click Internet Protocol Version 6 and select Properties in the Local Area Con- nection Properties dialog box which should now be the lan Properties dialog box.

b. Click the Use the following IPv6 address: radio button. This will enable the

IPv6 confi guration fi elds.

c. Enter an address such as:

2001:ab1:442e:1323::1 The address can be on any network of your choosing. If the number is not valid, Windows will inform you when you attempt to go to the next fi eld.

d. Enter an address that is one higher for the second computer, for example:

2001:ab1:442e:1323::2 e. Ascend from there for each additional computer.

f. For the subnet prefi x length, either tab through or enter 64. That is the

default length; if you tab through, it will be entered automatically.

g. For the default gateway on all computers, enter:

2001:ab1:442e:1323::9 This is just an example. If you are using a different network, just make sure your gateway address is on the same network but uses a different host number in this case, the last octet. If you have specifi c network documentation with a real IPv6 gateway address, utilize it

h. For the preferred DNS server on all computers, enter:

2001:ab1:442e:1323::8 This is just an example. If you have specifi c network documentation with a real IPv6 gateway address, utilize it The DNS server could even be on a different network—it all depends on the network confi guration. Your confi guration should look similar to Figure 4-17.

8. Click OK for the IPv6 Properties dialog box.

9. Click Close for the lan Properties dialog box. That should bind the information to the

network adapter.

10. Verify the configuration in the command prompt with ipconfigall. Your results

should be similar to Figure 4-18. The address you just added should show up in the IPv6 Address field. This is usually just above the Link-local IPv6 Address field. Also check for the IPv6 gateway and DNS server addresses.