Hi, I am trying to setup freeradius to generateng COA after receiving Access-Request packets. Is there any document on how to configure this setting? It seems I am sending Accounting packet to authorization port: After sending ... echo "User-Name=test,User-Password=abc123" | /usr/local/bin/radclient -x localhost:11812 coa testing1234 I got the following debug log: Listening on authentication address * port 11812 Listening on accounting address * port 11813 Listening on command file /usr/local/var/run/radiusd/radiusd.sock Listening on authentication address 127.0.0.1 port 18120 as server inner-tunnel Listening on proxy address * port 11814 Ready to process requests. Invalid packet code 43 sent to authentication port from client localhost port 34917 : IGNORED Ready to process requests. Invalid packet code 43 sent to authentication port from client localhost port 34917 : IGNORED Ready to process requests. Invalid packet code 43 sent to authentication port from client localhost port 34917 : IGNORED Ready to process requests. Thanks, ASM