Hi all, I am new to RADIUS. I understand "Accounting-off" can be sent before the NAS shutting down to inform the server that all the currently opened session to be closed. "Accounting -on" is to mark the start of the accounting upon booting. There are also per "session-id" based "Accounting-start" and "Accounting-stop". It seems to me if we can apply all the session IDs to "Accounting-start" and "Accounting-stop" then we do not need to use "Accounting-off" and "Accounting-on". Please somebody to explain to me when we have to use "Accounting-off" and "Accounting-on"? Regards, 4RF Limited The information in this email communication (inclusive of attachments) is confidential to 4RF Limited and the intended recipient(s). If you are not the intended recipient(s), please note that any use, disclosure, distribution or copying of this information or any part thereof is strictly prohibited and that the author accepts no liability for the consequences of any action taken on the basis of the information provided. If you have received this email in error, please notify the sender immediately by return email and then delete all instances of this email from your system. 4RF Limited will not accept responsibility for any consequences associated with the use of this email (including, but not limited to, damages sustained as a result of any viruses and/or any action or lack of action taken in reliance on it).