Placement Behind A Firewall; Network Bandwidth; Domain Name Service Server - LifeSize Room 200 Installation Manual

Placement Behind a Firewall

LifeSize recommends that you place your system behind a firewall and block, at minimum,
the following ports:
• 22 (SSH)
• 23 (Telnet)
• 80 (HTTP)
• 443 (HTTPS)
If you require these ports to remain open, ensure that you change the default administrator
and command line interface passwords to be very secure. For information about changing
the default administrator password, refer to "Changing the Administrator Password" in the
LifeSize Video Communications Systems Administrator Guide.
For information about changing the command line interface password, refer to the LifeSize
Automation Command Line Interface document available on the Support page of
www.lifesize.com.
You can also disable SSH and web access on the system by configuring preferences in the
user interface. By default, Telnet access is disabled. For more information, refer to the
LifeSize Video Communications Systems Administrator Guide.

Network Bandwidth

Poor audio and video quality may result from insufficient bandwidth on your network.
LifeSize recommends that your network be capable of at least 1 Mb/s (incoming and
outgoing) for a high definition video call. During video calls with lower bandwidths, LifeSize
systems automatically select the best resolution that can be achieved with the available
bandwidth.

Domain Name Service Server

If you intend to use domain addresses for placing calls you must configure a Domain Name
Service (DNS) server, or use a Dynamic Host Configuration Protocol (DHCP) server that
automatically sets a DNS server.
LifeSize Room 200 Installation Guide 5