Hi, I want to authenticate via radiusclient supplicants /etc/radiusclient/radiusclient.conf: https://pastebin.com/gAdNbWxD /etc/radiusclient/servers https://pastebin.com/4AXf75i RADIUS server is running Listening on acct address * port 1813 bound to server default Listening on auth address :: port 1812 bound to server default Listening on acct address :: port 1813 bound to server default Listening on proxy address * port 58396 Listening on proxy address :: port 60516 Ready to process requests Execution of radiusclient results in # /usr/sbin/radiusclient -f radiusclient.conf -p 1812 -s Segmentation fault Where can I found more documentation of radiusclient (usage)? What is the meaning of '-s' and '[-a] a1=v1 [a2=v2[...[aN=vN]...]]]'? Is the radiusclient able to authenticate supplicants? Thanks, Erwin