Thank you Alan and Alan, it worked. :) # radtest -t mschap viola password localhost 0 key Sending Access-Request of id 67 to 127.0.0.1 port 1812 User-Name = "viola" NAS-IP-Address = x.x.x.x NAS-Port = 0 Message-Authenticator = 0x00000000000000000000000000000000 MS-CHAP-Challenge = 0xb8aa006ef4040d71 MS-CHAP-Response = 0x000100000000000000000000000000000000000000000000000037cfefe932713bd369dc9bbaa3e35b25d2316e83ae73db95 rad_recv: Access-Accept packet from host 127.0.0.1 port 1812, id=67, length=84 MS-CHAP-MPPE-Keys = 0x0000000000000000493adff9cf9839a289e3c19d21c8a4310000000000000000 MS-MPPE-Encryption-Policy = 0x00000002 MS-MPPE-Encryption-Types = 0x00000006