[Bug 1696415] Re: NetworkManager does not update IPv4 address lifetime even though DHCP lease was successfully renewed

[Ray Link]

Correction/Addendum to the SRU justification above:

Fixed in current Ubuntu.  Bionic uses NM 1.8.x.  This bug was fixed in
1.4.

[Impact]

* This LP bug's original submitter backported the upstream 1.4 fix to
1.2, not Upstream.

[Regression Potential]

* The patch changes both nm-dhcp-helper and NetworkManager itself.  As
soon as the new packages are unpacked, the new nm-dhcp-helper will be
used on DHCP lease renewals, with the new Notify mechanism.  Since the
running, old NetworkManager is still expecting Event notifications, the
patched nm-dhcp-helper has fallback capability to Event.

* Once NetworkManager is restarted and is running the patched version,
it will have the new Notify support.

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https://bugs.launchpad.net/bugs/1696415

Title:
  NetworkManager does not update IPv4 address lifetime even though DHCP
  lease was successfully renewed

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