[Bug 2119151] Re: [hwol] Traffic from SNATed networks to LB VIPs is broken

[Nick Rosbrook]

Hello Martin, or anyone else affected,

Accepted ovn into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/ovn/22.03.8-0ubuntu0.22.04.1 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: ovn (Ubuntu Jammy)
       Status: New => Fix Committed

** Tags added: verification-needed-jammy

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https://bugs.launchpad.net/bugs/2119151

Title:
  [hwol] Traffic from SNATed networks to LB VIPs is broken

Status in ovn package in Ubuntu:
  Fix Released
Status in ovn source package in Jammy:
  Fix Committed
Status in ovn source package in Noble:
  Fix Committed
Status in ovn source package in Plucky:
  Fix Committed
Status in ovn source package in Questing:
  Fix Released

Bug description:
  [Impact]
  With Hardware Offload enabled, traffic from network with SNAT enabled can't reach service behind a Load Balancer's VIP.

  Fix was proposed and merged upstream [0] and additional discussion can
  be found on mailing list [1].

  [0] https://github.com/ovn-org/ovn/commit/342eb7fec33392642bb7b79526851bb1f4eda880
  [1] https://mail.openvswitch.org/pipermail/ovs-dev/2025-May/423389.html

  [Test Case]
  The change includes both unit and system test cases that will be executed as part of package build and autopkgtest.

  In addition full end to end validation will be performed as documented
  in the test case for point release updates submitted simultaneously
  (bug 2119301, bug 2119289 and bug 2119283).

  [Regression Potential]
  The patch, which in reality is a revert of a previous commit, has been merged and backported to upstream stable branches [2] since June 25th.

  The change has received scrutiny from maintainers of the project as
  well as stake holders among hardware vendors.

  [2] https://mail.openvswitch.org/pipermail/ovs-
  dev/2025-June/424285.html

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