Windows 7: Configure IPv6 Access

I. Initial fault occurrence:

I am responsible for the network maintenance of primary and secondary schools in the region. Some schools will update their internal network addresses to IPv6, therefore, the author often needs to access related sites through IPv6 addresses. however, I recently discovered that some internal school websites that previously could normally log on had failed to be accessed, and statistics showed that these sites were equipped with IPv6 addresses.

Ii. troubleshooting:

My own machine is a t400 notebook, installed with the official Windows 7 Ultimate Operating System. in order to better locate the root cause of the fault, I visited the above site through other machines, especially the machines installed with the XP system, and found that there was no problem. it seems that the root cause of the failure lies in the settings of Windows 7.

(1) Configure IPv6 parameters from the menu:

Next, I will find a solution through the network search, first starting with the IPv6 settings, the specific steps are as follows.

Step 1: Right-click the "network" icon on the desktop and select Properties to enter the network sharing center. Click to enter the local connection.

Step 2: configure the Local Connection Properties, find the Internet Protocol version 6 (TCP/IPv6) option, and double-click the new window to open the settings. (1)

Step 3: Enter the IPv6 parameter information in the local network according to the rules. The sensitive information such as the network IP address segment is not described here. (2)

(2) Configure IPv6 parameters from the command:

After the configuration is complete, the fault persists, and the local computer still cannot smoothly access the IPv6 Site of the internal network. This problem does not exist in other Windows XP system computers. therefore, I use the command line to configure IPv6 address information again. the procedure is as follows.

Step 1: Enter cmd in the run box, right-click the command prompt, and select "Run as administrator )", open the command line window and enter netsh For nic parameter configuration.

Step 2: Enter the following commands in sequence to enable our IPv6 Configuration.

Below isCodeFragment: Netsh> int Netsh> interface> IPv6 Netsh> interface> IPv6> isatap Netsh> interface> IPv6> isatap> set router xxxxxxx (replace xxxxxx with the IPv6 route address of the local network) Netsh> interface> IPv6> isatap> set state Enabled Netsh> interface> IPv6> isatap> quit

(3) Configure IPv6 from the service:

After the configuration is complete, the author tries to solve the Internet fault again. It seems that the two methods do not help to modify the IPv6 attribute. the fault persists after the correct host file is copied on the Internet. it seems that the problem does not appear in the IPv6 settings. The author continues to look for answers to the problem from the system. at this moment, I thought of a previous failure in the use of the Windows XP system that caused the printer to be unable to share because the netshare service was disabled, so the ghost was trying to do it from the "service ".Article. Enter services. MSC in the Command Prompt window to enter the "service" option window.

Here, I compare the differences between Windows 7 and Windows XP, and finally find a service called IP helper. Through the description, I learned that this service plays a role in "IPv6 conversion technology, if the service is stopped, the computer will not have the enhanced connection advantages provided by these technologies ", but the IP Helper Service in Windows 7 is not started, after the service is started, the author once again accesses those IPv6 education websites and there is no problem. Next, set the Service Startup Mode to automatic, and restart the Windows 7 operating system to completely resolve the fault. (3)

Iii. Summary:

In Windows 7, IP helper is the key for IPv6 address resolution and access. It corresponds to the IPv6 Helper Service in Windows XP, if we do not use IPv6 to access applications, we can disable the above services. If you want to use IPv6, you must enable it, in this troubleshooting example, the IPv6 Site access failure is caused by the illegal and unexpected shutdown of the IP Helper Service in Windows 7.