Index: com/sun/enterprise/security/auth/realm/ldap/LDAPRealm.java
===================================================================
--- com/sun/enterprise/security/auth/realm/ldap/LDAPRealm.java	(revision 33281)
+++ com/sun/enterprise/security/auth/realm/ldap/LDAPRealm.java	(working copy)
@@ -553,6 +553,7 @@
         
         p.put(Context.SECURITY_PRINCIPAL, bindDN);
         p.put(Context.SECURITY_CREDENTIALS, password);
+        p.put(Context.SECURITY_AUTHENTICATION, "simple");
         
         DirContext ctx = null;
         try {