2009/06/15

Random identifier in Vista

Unlike XP which uses EUI-64 format for idenitifier in IPv6 assignment of link-local address, Vista by default randomizes the last 64 bits for privacy protection. It can be disabled by the following command:

c:\netsh interface ipv6 set global randomizeidentifiers=disabled

To turn it on again, the command is to change from disabled to enabled.

c:\netsh interface ipv6 set global randomizeidentifiers=enabled

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