Ldap Group Membership Requirements

I'm trying to require a user to be a member of the wireless group in ldap to be able to join the wireless. All users can currently join the wireless. I can't find very much documentation on the groupmembers* lines in the ldap section of radius.conf. Basically trying to figure out what I need to add to these lines: groupname_attribute, groupmembership_filter, and groupmembership_attribute. Also not sure if I need to add something to users file like: DEFAULT LDAP-Group == "wireless". Can anyone provide input on what I need to configure, Thanks. wireless group in ldap, you can see cjarrett is a member: dn: cn=wireless,ou=Groups,dc=itfreedom,dc=com objectClass: posixGroup cn: wireless gidNumber: 1011 memberUid: cjarrett