Cisco Cisco TelePresence Video Communication Server Expressway
Introduction
A Cisco TelePresence Video Communication Server (VCS) with the Starter Pack option key creates a VCS
Starter Pack Express which acts as a standalone provisioning server, registrar and proxy server for endpoint
devices, such as Jabber Video and Cisco Jabber for iPad.
Starter Pack Express which acts as a standalone provisioning server, registrar and proxy server for endpoint
devices, such as Jabber Video and Cisco Jabber for iPad.
The VCS Starter Pack Express may have endpoints register to it locally or register to it from behind a home,
small business or hotel firewall.
small business or hotel firewall.
If the VCS Starter Pack Express services endpoints that are behind a firewall, the VCS could be configured
with a public IP address and the local (DMZ) firewall would have to be configured to pass the specific public
IP address traffic to the VCS.
with a public IP address and the local (DMZ) firewall would have to be configured to pass the specific public
IP address traffic to the VCS.
However, it is usually preferable to deploy the VCS in a NATed DMZ, rather than having the VCS configured
with a publicly routable IP address. This can be achieved by enabling static NAT mode on selected network
interfaces on the VCS. To use the static NAT mode feature you must install the Dual Network Interfaces
option key. You can then enable static NAT mode on the externally-facing LAN port and configure it with a
private address and a static NAT address (the public IP address of the DMZ NAT firewall). This means that
when the VCS communicates with other devices it appears as an Internet routable device despite being
behind the local NAT firewall.
with a publicly routable IP address. This can be achieved by enabling static NAT mode on selected network
interfaces on the VCS. To use the static NAT mode feature you must install the Dual Network Interfaces
option key. You can then enable static NAT mode on the externally-facing LAN port and configure it with a
private address and a static NAT address (the public IP address of the DMZ NAT firewall). This means that
when the VCS communicates with other devices it appears as an Internet routable device despite being
behind the local NAT firewall.
Note that the Dual Network Interfaces option key allows the use of two network interfaces (LAN1 and
LAN2), and allows static NAT mode to be enabled on one or both of these interfaces. It is not compulsory to
use both interfaces, even though they have been enabled; you may use only a single interface and enable
Static NAT mode on that single interface.
LAN2), and allows static NAT mode to be enabled on one or both of these interfaces. It is not compulsory to
use both interfaces, even though they have been enabled; you may use only a single interface and enable
Static NAT mode on that single interface.
You must ensure that sufficient bandwidth is available when making calls through firewalls and other
infrastructure. For example, five simultaneous calls using 512kbps in each direction will require 2.5Mbps
bandwidth for this video traffic on top of its normal operation.
infrastructure. For example, five simultaneous calls using 512kbps in each direction will require 2.5Mbps
bandwidth for this video traffic on top of its normal operation.
Cisco VCS Starter Pack Express Deployment Guide (X8.1)
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Introduction