Avocent DSView - Manual (Page 67)

Appendices 61
After the browse list is returned to Node Manager, the user may double-click
on a specific port to initiate a KVM session with that port on the DS appliance.
The DSView Client contacts the DSAuth Server, which checks the permissions
on the port again. If the logged user has permissions to the port selected, the
DSAuth Server will establish a connection to the DS appliance using TCP/IP
port 8191. The DSAuth Server then tells the appliance to listen to port 8192 for
a DSView connection.
For debugging purposes, the details of this connection may be seen by using
the console port to place the DS appliance into debug mode.
Figure B.2: Establishing Connection to a DS Unit
The DSView Client establishes a TCP/IP session with the appliance over the
TCP/IP port 8192. The DSAuth Server will establish a connection to the DS
appliance using TCP/IP port 8191. The DSAuth Server then communicates
to the appliance to listen to port 8192 for a DSView connection. All commu-
nication between the DS appliance and the DSView Client takes place over
TCP/IP port 8192 until the DSView Client closes the session.
Avocent
Service
TCP/IP
Port 2068
TCP/IP
Port 8192
DSAdmin
Client
Avocent
Service
TCP/IP
Port 2068
TCP/IP
Port 8192
DSAdmin
Client
TCP/IP
Port 8191
Avocent
Authentication
Service
DS Appliance
Remote User
DSAuth Server
DSView
Client