virtual lists

[Laurent Schweizer]

Hello,

I have a ldap client requesting virtual lists  and I get an error with openldap 
(critical extension is not recognized) , ldap exchange are bellow.

Any idea how to enable virtual list ?

BR

Laurent

REQUEST
Lightweight Directory Access Protocol
    LDAPMessage searchRequest(2) "dc=peoplefone, dc=com" wholeSubtree
        messageID: 2
        protocolOp: searchRequest (3)
            searchRequest
        [Response In: 1785]
        controls: 2 items
            Control
                controlType: 1.2.840.113556.1.4.473 (sortKeyList)
                criticality: True
                SortKeyList: 1 item
                    SortKeyList item
                        attributeType: cn
            Control
                controlType: 2.16.840.1.113730.3.4.9 (LDAP_CONTROL_VLVREQUEST 
VLV)
                criticality: True
                controlValue: 300e020100020100a006020101020100


REPONSE

Lightweight Directory Access Protocol
    LDAPMessage searchResDone(2) unavailableCriticalExtension (critical 
extension is not recognized) [0 results]
        messageID: 2
        protocolOp: searchResDone (5)
            searchResDone