Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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It should show a single loopback interface and no other interfaces. If this command doesn't work as expected, then Mininet will not work. If you have installed Mininet using apt-get, or from source on Ubuntu, Mininet should work correctly. However, you should make sure you don't have multiple or older versions of Mininet installed which might not work correctly with onos.py.