Siebel gateway and LDAP

Siebel Gateway and Ldap integration not working as documented. I am able to get it working for EBC but when I change gateway.cfg and make changes for LDAP integration then authentication is keep failing.

Here is gateway.cfg values.

[InfraNameServer]

EnableAuditTrail = FALSE

NSAdminRole = "Siebel Administrator"

[InfraSecMgr]

SecAdptName = LDAPSecAdpt

SecAdptMode = LDAP

[DBSecAdpt]

DBSecAdpt_SecAdptDllName = sscfsadb

DataSourceName = ServerDataSrc

DBSecAdpt_PropagateChange = TRUE

[DataSources]

ServerDataSrc            = Server

LDAPSecAdpt              = LDAP

[ServerDataSrc]

Docked                   = TRUE

ConnectString            = sebl81eip_DSN

TableOwner               = SIEBEL

DLL                      = sscdo90

SqlStyle                 = OracleCBO

MaxCachedCursors         = 16

MaxCachedDataSets        = 16

ReverseFillThreshold     = 100

FileSystem               = /siebel/siebfile

GatewayAddress           = lnxapp262:2320

EnterpriseServer         = sebl81eip

CurrentSQLID             = %SQLID%

MaxCursorSize            = -1

PrefetchSize             = -1

ChartServer              = localhost:8001

ChartImageFormat         = png

[LDAPSecAdpt]