Hi,
 
my slapd.conf file is like this :
 
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
include         /usr/local/etc/openldap/schema/core.schema
include         /usr/local/etc/openldap/schema/cosine.schema
include         /usr/local/etc/openldap/schema/nis.schema
include         /usr/local/etc/openldap/schema/inetorgperson.schema
include         /usr/local/etc/openldap/schema/new_core.schema
# Define global ACLs to disable default read access.
# Do not enable referrals until AFTER you have a working directory
# service AND an understanding of referrals.
#referral       ldap://root.openldap.org
pidfile         /usr/local/var/run/slapd.pid
argsfile        /usr/local/var/run/slapd.args

#######################################################################
# BDB database definitions
#######################################################################
database        bdb
suffix          "dc=cdac,dc=in"
rootdn          "cn=Manager,dc=cdac,dc=in"
# Cleartext passwords, especially for the rootdn, should
# be avoid.  See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
rootpw          secret
# The database directory MUST exist prior to running slapd AND
# should only be accessible by the slapd and slap tools.
# Mode 700 recommended.
directory       /usr/local/var/openldap-data
# Indices to maintain
index   objectClass     eq
dn: FileName=home,dc=cdac,dc=in
FileName: home
ref: ldap://neo00/FileName=home,dc=cdac,dc=in
objectClass: referral
objectClass: extensibleObject
and i have added these additional members in the default core.schema : 
 
objectclass ( 1.3.6.1.4.1.1466.101.120.111 NAME 'extensibleObject'
        DESC 'RFC2252: extensible object'
        SUP top AUXILIARY )
 
attributetype ( 2.16.840.1.113730.3.1.34
          NAME 'ref'
          DESC 'named reference - a labeledURI'
          EQUALITY caseExactMatch
          SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
          USAGE distributedOperation )
 
objectclass ( 2.16.840.1.113730.3.2.6
          NAME 'referral'
          DESC 'named subordinate reference object'
          STRUCTURAL
          MUST ref )
 
 
and when i am going to start slapd it will give me error :
 
 root@neo05:/root/anjali/openldap/openldap-2.3.38/servers/slapd
@(#) $OpenLDAP: slapd 2.3.38 (Dec 10 2007 16:07:48) $
        root@neo05:/root/anjali/openldap/openldap-2.3.38/servers/slapd
daemon_init: listen on ldap:///
daemon_init: 1 listeners to open...
ldap_url_parse_ext(ldap:///)
daemon: listener initialized ldap:///
daemon_init: 1 listeners opened
neo05 init: initiated server.
slap_sasl_init: initialized!
bdb_back_initialize: initialize BDB backend
bdb_back_initialize: Sleepycat Software: Berkeley DB 4.2.52: (September 21, 2004)
hdb_back_initialize: initialize HDB backend
hdb_back_initialize: Sleepycat Software: Berkeley DB 4.2.52: (September 21, 2004)
/usr/local/etc/openldap/schema/core.schema: line 597: attribute type "2.16.840.1.113730.3.1.34" is operational
neo05 destroy: freeing system resources.
slapd stopped.
connections_destroy: nothing to destroy.
[1]+  Exit 1                  /usr/local/libexec/slapd -V -n neo05 -4 -d 1
Please give me solution for this problem as soon as possible.
 
Actually i want to do the communication between two ldap servers in chaining fasion
 
Thanks and Regards,
Anjali