Hi list, This is hopefully a simple question. I've been using a simple users file to authenticate a handful of users that don't exist in AD with entries like this, which works: test-account1 Cleartext-Password := "password", MS-CHAP-Use-NTLM-Auth := no I also want to have a couple of test accounts that are restricted to MAC addresses. test-account2 Cleartext-Password := 'password', Calling-Station-Id == "00:11:22:33:44:55", MS-CHAP-Use-NTLM-Auth := no However radius -XC bombs out with "Unexpected trailing comma in check item list for entry test-account2" According to the manpage for the users file, I've formatted it correctly with commas between each check-item. I wondered if MS-CHAP-Use-NTLM-Auth was a reply-item so I tried to move it onto its own line with a tab, but this throws "Parse error (reply) for entry test-account2 (unknown error)" Can anyone advise on how to format users entries like this, and even if it is possible to require specific mac addresses in this way? Thanks, Jonathan