Updated OVN to main and it unfortunately made no difference.
The combination of stateless on the NAT rule and the allow-related ACLs
does indeed look strange, but this is how OpenStack sets it up. Have not
looked into whether that makes sense or not yet.
To ensure we're looking at the same thing I made this modification to
the `DNAT LR hairpin IPv4` system test [2]
And executed it like this:
sudo make check-kernel TESTSUITEFLAGS="337"
It fails consistently here. If I either revert [1] or remove the check
for the second ping from the test it succeeds.
2:
https://bugs.launchpad.net/ubuntu/+source/ovn/+bug/1967856/+attachment/5579267/+files/test-synthesis.patch
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https://bugs.launchpad.net/bugs/1967856
Title:
Hairpin traffic does not work with centralized NAT gw
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