Hello,
MAC to Role mapping mapping support is based on platform. Please check the following firmware support documentation to identify if your platform supports MAC to Role Mapping.
https://documentation.extremenetworks.com/release_notes/netsight/9035428_FirmwareSupport.pdf
You can configure a Mapping with mask for an OUI match. There is no tool tip in Extreme Management Center, but the format is 11:22:33:00:00:00/24. If any digits are outside of the masked range they will be turned into 0s.
This is also something that Extreme Control is very good at, and can apply policy based on MAC or MAC oui in a manageable group, with MAC to Role mappings if you have large amounts of MACs, or OUIs each one will take up a rule slot.
I'm not sure what you mean by "Is it necessary to insert a password for every phone". Could you elaborate?
Thanks
-Ryan