[ipv6hackers] Windows 10 has random issues with temporary IPv6 addresses staying at Pref Life 0s

fireballiso fireballiso at yahoo.com
Fri Nov 2 04:10:29 CET 2018

Hi! I've been using a /64 tunnel from Hurricane for a few years to test
IPv6 connectivity until my ISP offers native service.

Linux works well with IPv6. However, recently I've isolated a problem in
Windows 10 (version 1803, build 17134.345) where the Preferred Lifetime
of *temporary* IPv6 addresses don't seem to be renewed properly
sometimes. When the Valid Life reaches 0, it will start counting down
again from 24 hours, but the Pref Life will stay at 0s; in this
condition, the temporary addresses don't work on that interface until I
disable and then re-enable it.

output of "netsh int ipv6 show addr":

Addr Type      DAD State       Valid Life         Pref. Life     Address
---------          -----------             ---------- -        ---------
Public             Preferred        23h58m22s   3h58m22s
Temporary      Deprecated   23h58m22s         0s        
Public             Preferred        23h58m22s   3h58m22s
Temporary      Deprecated   23h58m22s         0s        
Other             Preferred          infinite           infinite     

Sometimes this problem doesn't happen, and as expected, after Pref Life
reaches 0 it is reset to start counting down from 4 hours again.

Has anyone else seen this bug? Any idea whether there's a fix or
workaround, other than an interface disable/re-enable?


fireballiso at yahoo.com

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