Any random number in the range can of course already be in use.

They try to do the same thing, but the former uses uglier parsing
(imho) and fails if the test suite is run as a non-root user since
ifconfig is in /sbin, which generally isn't in such users' PATH:s.

... and pave the way for adding more options than the user to execute
the command as.

Will-fix: #9257

"Persistent" in the sense that it survives across scenarios. This is a
first step towards using a single Libvirt::Domain instance across the
full test suite run, which in turn is a step towards being able to use
Libvirt snapshots more easily (or at all, I think).

This was achieved with the following command:

    sed -i 's/@vm\>/$vm/g' -- features/step_definitions/*.rb \
                              features/support/*.rb \
                              features/support/helpers/*.rb

anonym++

At the same time, remove the LAN steps.

(And actually, I suspect that assert would not work anyway.)