NetBT Name Service Messages

WINS clients and WINS servers communicate by exchanging NetBT name service messages. NetBT messages and protocol operation are defined in RFCs 1001 and 1002. There are many types of NetBT name service messages defined in RFC 1002, which are typically sent as UDP messages. Both the WINS client and the WINS server listen on UDP port 137. The types of NetBT name service messages thatare the following:

• Name Query Request. Sent by a WINS client to a WINS server to perform NetBIOS name resolution.

• Name Query Response. Sent by a WINS server to a WINS client to respond to a name query request. There is a positive name query response and a negative name query response.

• Name Registration Request Sent by a WINS client to a WINS server to perform name registration.

• Name Registration Response. Sent by a WINS server to a WINS client to respond to a name registration request. There is a positive name registration response and a negative name registration response.

• Wait Acknowledgment. Sent by a WINS server to a WINS client during name registration when confirming the ownership of an existing name previously registered by another client.

• Name Refresh Request. Sent by a WINS client to a WINS server to refresh a name that was previously registered. The response to a name refresh request is a name registration response.

• Name Release Request. Sent by a WINS client to a WINS server to release the registration of a name that was previously registered.

• Name Release Response. Sent by a WINS server to a WINS client to respond to a name release request. There is a positive name release response and a negative name release response.

Source of Information : Microsoft Press Windows Server 2008 TCP IP Protocols and Services