Github user rhtyd commented on the issue: https://github.com/apache/cloudstack/pull/1692 @serg38 thanks for sharing the test results. I can see why all the out-of-band management tests may fail, these tests require that the mgmt server is able to send/receive UDP traffic from/to the management server to the server where you're running the marvin tests. In case of any iptables rules dropping UDP packets, most/all the oobm tests will fail as they launch a `ipmisim` (ipmi-simulator) server that listens on random UDP port.
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