This is because we don't ourselves provide a hardware dongle that we can be
sure would work on the different operating systems and machines, and the
variations of user-supplied dongle hardware and platforms to put them on are
too numerous to support.
That said, it is possible to use some removable USB and Thunderbolt ethernet
adapters which carry their MAC addresses internally and which the host machine
can read and use with a license.
However, even configurations like the above can return good and bad
results with different OSs. Also, some of the dongle MACs are not returned as
system IDs by our FLU (license utility) but do work with a license, so it's
hard to predict until you try one with a license on the target OS and
So technically, we do not support using dongles of any sort for licensing.
But we don't know how many are out there, because we just get system IDs and
never know the hardware they're coming from.
We would advise anyone wanting to use a dongle, to get a trial license based on
the MAC and do a little testing with our RLM licenses on the target OS and