ATTRIBUTE	User-Name		1	string
ATTRIBUTE	User-Password		2	string
ATTRIBUTE	NAS-IP-Address		4	ipaddr
ATTRIBUTE	Calling-Station-Id	31	string
ATTRIBUTE	NAS-Identifier		32	string
ATTRIBUTE	Acct-Session-Id		44	string
ATTRIBUTE	Event-Timestamp		55	date
ATTRIBUTE	Message-Authenticator	80	octets
ATTRIBUTE	Chargeable-User-Identity 89	string
ATTRIBUTE	Error-Cause		101	integer