Hi Dev, *radtest* [*-d* *raddb_directory*] [*-P* *tcp/udp*] [*-t* *pap/chap/mschap/eap-md5*] [*-x* *]* [*-4* *]* [*-6* *]* *user password radius-server nas-port-number secret*[*ppphint*] [*nasname*] DESCRIPTION *radtest* is a frontend to *radclient <http://freeradius.org/radiusd/man/radclient.html>*(1). It generates a list of attribute/value pairs based on the command line arguments, and feeds these into*radclient*. It's a fast and convenient way to test a radius server. OPTIONS -d *raddb_directory*The directory that contains the RADIUS dictionary files. Defaults to */etc/raddb*. -P *proto*Use *proto* transport protocol ("tcp" or "udp"). Only available if FreeRADIUS is compiled with TCP transport support. -t *pap/chap/mschap/eap-md5*Choose the authentiction method to use. e.g. "-t pap", "-t chap", "-t mschap", or "-t eap-md5",. Defaults to "pap". Using EAP-MD5 requires that the "radeapclient" program is installed. -xEnables debugging output for the RADIUS client. -4Use NAS-IP-Address for the NAS address (default) -6Use NAS-IPv6-Address for the NAS address (default) userUsername to send. passwordPassword of the user. radius-serverHostname or IP address of the radius server. Optionally, you may specify a port by appending :port nas-port-numberThe value of the NAS-Port attribute. Is an integer between 0 and 2^31, and it really doesn't matter what you put here. *10* will do fine. secretThe shared secret for this client. ppphintIf you put an integer > 0 here, radtest (or actually radclient) will add the attribute *Framed-Protocol = PPP* to the request packet. nasnameIf present, this will be resolved to an IP address and added to the request packet as the *NAS-IP-Address* attribute. If you don't specify it, the local hostname of the system will be used. ACCODRIGNG TO THIS CONFIGUARATION,can we defined nas name without using hostname.It is not worked for me.any one can help me.I want to test connection of different nas-clients connection.by setting nas client ip address and secret, Any one can give solution for that? Thank you