[FS#322] LAN doesn't get the ipv6 address when WAN6 uses DHCPv6

[LEDE Bugs]

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FS#322 - LAN doesn't get the ipv6 address when WAN6 uses DHCPv6
User who did this: Mathias Kresin (mkresin)
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=322