Avocent Network Device SPC420 - Manual (Page 378)

358 DSView 3 Software Installer/User Guide
Figure B.2: Ports Used with a KVM Switch Proxy Server Connection (KVM)
If the user wishes to establish a session with another port on the KVM switch, the same process is
used.
For debugging purposes, connection details may be seen by using the console port to place the
KVM switch into Debug mode.
Serial console appliance ports
Like a KVM switch, a serial console appliance may use a non-proxied or a proxied connection.
Serial console appliances use a Secure Shell Protocol (SSH).
The client contacts the server, which checks the permissions of the target device. If the logged in
user has permissions to establish sessions to the selected target device, the server will establish a
connection to the appliance using TCP/IP port 3871 to authorize the session.
In a non-proxied SSH connection, the client communicates directly with the appliance using port
22.
TCP/IP
KVM Switch
DSView 3 Server
DSView 3 Software Client TCP/IP
HTTPS
Firewall
Port 1078
KVM
with
Tunnel
TCP/IP
Port 3871
TCP/IP
Port 8192
Router
TCP/IP
HTTPS
TCP/IP
Port 1078
TCP/IP
Port 2068
UDP
Port 3211
TCP/IP
Port 3211