When RHEL image is used as guest image in the tempest, SG related tests are failing. Failed test(s): neutron_tempest_plugin.scenario.test_security_groups.StatefulNetworkSecGroupTest.test_connectivity_between_vms_using_different_sec_groups neutron_tempest_plugin.scenario.test_security_groups.StatelessNetworkSecGroupIPv4Test.test_connectivity_between_vms_using_different_sec_groups It can be seen in: https://rhos-ci-jenkins.lab.eng.tlv2.redhat.com/job/DFG-network-neutron-17.1_director-rhel-virthost-3cont_2comp-ipv6-geneve-dvr-rally/19//artifact/tempest-results/tempest-results-neutron.1.html For some reason on guest image like RHEL is spawning "nc" with "-z" option which means "Zero I/O mode". In this mode ncat is not sending nor receiving any data, it just checks if something is listening on the given port. Without that option test is passing so we should remove that from the test.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 17.1.1 (Wallaby)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2023:5138