[FS#1002] Dns ipv6 problem when interface restart

[LEDE Bugs]

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FS#1002 - Dns ipv6 problem when interface restart
User who did this: Hans Dedecker (dedeckeh)
Status: Unconfirmed -> Waiting on reporter

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1002