Hi Allan, I understand from the mail archive and the source code that i need to use the paircreate and pairadd functions to add the value pairs to the radius packet and use the Rad_send library call to send the accounting packets. Can i use the above approach to send the accounting response packet with attributes? Pls let me know if the understanding is correct or do i need to adopt some other mechnasism to add the support of sending the accounting response packets with attributes? Thanks for your time. Rgds Shankar ganesh