Looking at the files related to dhclient managed by Network Manager
under /var/lib/NetworkManager/ I noticed that although the new lease
file seems to contain the correct (in the future) timestamps the
"timestamps" file entry for that same lease UUID is still set to the
time the original lease expired.
$ ll dhclient6-0775a2a6-a4a1-40bf-bd85-9c3068582dbc-wlp3s0.lease
-rw-r--r-- 1 root root 1056 Mar 22 16:06
dhclient6-0775a2a6-a4a1-40bf-bd85-9c3068582dbc-wlp3s0.lease
$ cat dhclient6-0775a2a6-a4a1-40bf-bd85-9c3068582dbc-wlp3s0.lease
default-duid "\000\004\301\253\223\321\035\340@\022e\036\025M97\347\361";
lease6 {
interface "wlp3s0";
ia-na 3b:bd:74:85 {
starts 1456324435;
renew 43200;
rebind 69120;
iaaddr 2a02:8011:2007::2 {
starts 1456324435;
preferred-life 86400;
max-life 86400;
}
}
option dhcp6.client-id 0:4:c1:ab:93:d1:1d:e0:40:12:65:1e:15:4d:39:37:e7:f1;
option dhcp6.server-id 0:3:0:1:ec:43:f6:46:c0:80;
option dhcp6.name-servers 2a02:8010:1:0:212:23:3:100;
option dhcp6.unknown-16 0:0:d:e9:0:c:64:73:6c:66:6f:72:75:6d:2e:6f:72:67;
}
$ date +%F-%T --date='@1456324435'
2016-02-24-14:33:55
$ date +%F-%T
2016-03-22-17:28:20
So the lease "starts" time is a month ago even though the lease file
update time is the time the address was depreferred.
The "timestamps" file entry for that UUID is:
$ grep 0775a2a6-a4a1-40bf-bd85-9c3068582dbc timestamps
0775a2a6-a4a1-40bf-bd85-9c3068582dbc=1458662760
$ date +%F-%T --date='@1458662760'
2016-03-22-16:06:00
This is the time of the deprefer; presumably set when the lease was
originally issued.
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Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1533631
Title:
Failed to renew DHCPv6 lease after suspend
Status in network-manager package in Ubuntu:
Confirmed
Bug description:
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).
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1533631/+subscriptions
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