| LDAPEXOP(1) | General Commands Manual | LDAPEXOP(1) | 
Additional data for the extended operation can be passed to the server using data or base-64 encoded as b64data in the case of oid, or using the additional parameters in the case of the specially named extended operations above.
Please note that ldapexop behaves differently for the same extended operation when it was given as an OID or as a specialliy named operation:
Calling ldapexop with the OID of the whoami (RFC 4532) extended operation
  ldapexop [<options>] 1.3.6.1.4.1.4203.1.11.3
yields
  # extended operation response
  data:: <base64 encoded response data>
while calling it with the keyword whoami
  ldapexop [<options>] whoami
results in
  dn:<client's identity>