Problem to Authenticate Users with openLDAP on Solaris 9

hi to everyone,
I try to permit solaris 9 box to authenticate users with openLDAP Server. But I can not get access to "/etc/passwd" of LDAP Server. I have configured the solaris system as LDAP client with "ldapclient" command and I confirmed with the "ldapclient list" that give us the following:

root@foivos:/> ldapclient list
NS_LDAP_FILE_VERSION= 2.0
NS_LDAP_BINDDN= cn=Manager,dc=tesyd,dc=teimes,dc=gr
NS_LDAP_BINDPASSWD= {NS1}5e10c25544515e26
NS_LDAP_SERVERS= 10.0.0.221
NS_LDAP_SEARCH_BASEDN= dc=tesyd,dc=teimes,dc=gr
NS_LDAP_AUTH= simple
NS_LDAP_SEARCH_SCOPE= sub
NS_LDAP_SERVICE_AUTH_METHOD= pam_ldap:simple

I also updated the /etc/nsswitch.conf but I still not get access to /etc/passwd file of LdapServer. It is checked by "getent passwd"

Please, .any help would be appreciated

Thanks in advance