User guide

24 DSView Installer/User Guide
Using the DSView Software with a Firewall
In a typical network configuration, the DSView Client is located outside of the firewall and the
DSView Server and managed appliances reside inside the firewall. In this case, the firewall must be
configured to allow two TCP/IP ports inside the firewall.
The first TCP port (Default=443) is used for the HTTPS web browser connection between the
DSView Client and the DSView Server. The second TCP port (Default=1078) is used for the
Avocent Proxy Protocol (Tunnels Video and Telnet traffic). Both ports are configurable.
If you are using the DSView software through a firewall, we recommend the following:
• Place the DSView Server and all managed appliances within the same firewall demilitarized
zone (DMZ). If the managed appliances are not in the same DMZ with the DSView Server,
you must configure the firewall so all data may pass between the zones using TCP/IP ports 22
(SSH), 3211, 2068, 8192 and 3871. You must also configure the user datagram protocol (UDP)
port 3211 so it may pass through the firewall for initial network discovery of appliances that do
not have an IP address.
Figure 1.9: Typical DSView System Firewall Configuration
HTTPS
DSView Client
Proxy
DSView Server
Firewall
DSR Switch or
CPS Appliance
Target Devices
Proxy