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60 DSView Installer/User Guide
Appendix B: TCP Ports
When the DSView Client is launched, the Node Manager will become active.
Node Manager will attempt to establish a Security Support Provider Interface
(SSPI) Messenger Class session using TCP/IP over port 2068 to the DSAuth
Server (Authentication Service). First, Node Manager will use the current NT/
2000 cached credentials to establish the session. If the cached credentials have
the proper permissions, the browse list is returned from the DSAuth Server
over TCP/IP port 2068. Note that the DSView Client caches this list. Using the
refresh option will update the list from the DSAuth Server. If the session is
refused using the cached credentials, a pop-up dialog box will prompt for the
proper username and password.
Figure B.1: SSPI Messenger Class Session Establishment
Avocent
Service
TCP/IP
Port 8192
TCP/IP
Port 8191
DSAdmin
Client
Avocent
Service
TCP/IP
Port 8192
TCP/IP
Port 8191
DSAdmin
Client
TCP/IP
Port 2068
Avocent
Authentication
Service
Remote User
DSAuth Server
DSView
Client