> does any one of you know where to find the free radius client software > ,also if source code is available then let me know
free radius client software? I guess you're looking for radclient or radtest, both are included in the source-package that you can download from www.freeradius.org. Compile the package and you will get your radtest or radclient. Max! - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html