Public bug reported:
After fixing IPv6 address assignment (#1469346), IPv6 works fine until
sleep. On wake up ubuntu fails to renew its IPv6 lease:
Jan 13 10:47:47 ubuntu dhclient: PRC: Renewing lease on wlp3s0.
Jan 13 10:47:47 ubuntu dhclient: PRC: Rebinding lease on wlp3s0.
Jan 13 10:47:47 ubuntu dhclient: XMT: Rebind on wlp3s0, interval 9890ms.
Jan 13 10:47:47 ubuntu NetworkManager[796]: <info> (wlp3s0): DHCPv6 state
changed bound -> unknown
Jan 13 10:47:47 ubuntu dhclient: PRC: Address 2a02:xxxx:xxxx:xxxx::b44
depreferred.
Jan 13 10:47:47 ubuntu NetworkManager[796]: <info> (wlp3s0): DHCPv6 state
changed unknown -> expire
Jan 13 10:47:47 ubuntu NetworkManager[796]: <info> (wlp3s0): canceled DHCP
transaction, DHCP client pid 1170
Jan 13 10:47:47 ubuntu NetworkManager[796]: <info> (wlp3s0): DHCPv6 state
changed expire -> done
I'm not sure that it's solely NetworkManager issue (dhclient could also
be affected).
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1533631
Title:
Failed to renew DHCPv6 lease after suspend
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