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I'm new at this and I was wondering if anyone can help me out configuring free radius for mac address authentication I need to install a server for mac address authentication, without certificates. I have switch clients and I need authenticate users on these switches for mac (only). It's about 10 000 users on 200 switches in network. The problem is that same switches returns for user: User-Name = "002179a516be" and another switches the same user in reverse!!! format: User-Name = "eb-61-5a-79-12-00" Should I configure different Users for that? Thanks