Microsoft KB Archive/176501

= Explanation of Windows 95 Netlogon Packets =

Article ID: 176501

Article Last Modified on 11/15/2006

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APPLIES TO


 * Microsoft Windows 95

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This article was previously published under Q176501



SUMMARY
Your Microsoft Windows 95 clients may send one or more of the following types of Netlogon request packets:


 * SAM LOGON Request from client -or-


 * LM1.0/2.0 LOGON Request from client

A single client may send one or both of the above packets during an attempt to log on to the domain. This article discusses the difference between these Netlogon request packets and the cause of the SAM LOGON request from client packet.



SAM LOGON Request from Client
When a Windows 95 computer is configured for User-Level access control in Network Properties, it will send the SAM LOGON request from client packets to the domain controllers or the Windows NT Server computer for which it is configured. Mssp.vxd is sending these packets through the Windows 95 redirector to \MAILSLOT\MSSP on the security provider.

This is pass-through authentication being done from the Windows 95 computer. Windows 95 does not implement its own unique user-level security mechanism, so it must use the services of an existing user-level security provider, in this case a Windows NT domain controller or Windows NT Server computer, on the network. The Windows 95 computer sends these packets during its boot sequence to dynamically locate its security provider in preparation for future pass-through authentication needs.

LM1.0/2.0 LOGON Request from Client
The LM1.0/2.0 LOGON request from client packets are the standard Windows NT logon validation packets sent to \MAILSLOT\TEMP\NETLOGON on the domain controller where the Windows 95 computer is configured to perform its network logon request. This is controlled through the Client for Microsoft Networks properties page on the Windows 95 computer.

Keywords: kbinterop kbnetwork KB176501

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