What were you trying to do that didn't work?

Libreswan fails to connect with leftsubnet set. Connection seems active to NetworkManager-libreswan plugin, however `ipsec xfrm` is not showing bidirectional tunnel.

What is the impact of this issue to you?

fail in nightly NetworkManager-ci

Please provide the package NVR for which the bug is seen:

libreswan-5.1-2.el10

How reproducible is this bug?:

80%

Steps to reproduce

1. clone NetworkManager-ci repo
2. ./test_run.sh libreswan_ikev2_ipv4_leftsubnet

Expected results

pass in 100% in runs

Actual results

fail in 80% of runs, `ipsec xfrm` shows single direction only, tunnel not properly formed.

https://desktopqe-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/beaker-NetworkManager-main-veth-rhel10.x-upstream/713/artifact/artifacts/FAIL_report_NetworkManager-ci_Test0978_libreswan_ikev2_ipv4_leftsubnet.html#toggle=29da