Comment 3 for bug 2008062

This looks to be a side effect of dhcpcd(configure all interfaces by default) available in cirros-0.6.0+ and the issue started to appear after jobs switched to use the newer cirros versions[1][2]

"test_port_security_macspoofing_port" is specifically impacted as it does manage the ip address manually, there was a slight change after the newer cirros version to it[3]

We could stop dhcpcd or reconfigure(denyinterfaces eth1 to /etc/dhcpcd.conf) so it do not interfare with the test config. And for this i found an issue in cirros and reported[4]

To fix we can update test as above or move affected jobs to use cirros 0.5.2 temporary.

[1] https://review.opendev.org/c/openstack/neutron/+/871272
[2] https://review.opendev.org/c/openstack/devstack/+/881437
[3] https://review.opendev.org/c/openstack/tempest/+/871271
[4] https://github.com/cirros-dev/cirros/issues/107