Replication Server uses OpenLDAP client APIs to communicate with the LDAP server for user authentication.
The OpenLDAP API, which is precompiled with OpenSSL, is dynamically loaded from a shared library, libsybaseldap*, found in the $SYBASE/$OCS/lib3p or $SYBASE/$OCS/lib3p64 directory.
The LDAP user authentication uses an LDAP URL to search the user information. The LDAP URL is defined in the sysadmin ldap command.
ldap://john.doe.com:8888/dc=doe,dc=com??SUB?(cn=*)
See sysadmin ldap in the Replication Server Reference Manual.