Configuring the 

BlackBerry Connectivity Node

 to use the 

BlackBerry Router

 or a TCP proxy server

To use a proxy server with the 

BlackBerry Connectivity Node

, you can install the 

BlackBerry Router

 to act as a proxy server, or use a TCP proxy server that is already installed in your organization's environment.

You can install the 

BlackBerry Router

 or a proxy server outside your organization’s firewall in a DMZ. Installing the 

BlackBerry Router

 or a TCP proxy server in a DMZ provides an extra level of security. Only the 

BlackBerry Router

 or the proxy server connects to the 

BlackBerry Connectivity Node

 from outside the firewall. All connections to the 

BlackBerry Infrastructure

 between the 

BlackBerry Connectivity Node

 and devices go through the 

BlackBerry Router

 or the proxy server.

By default, the 

BlackBerry Connectivity Node

 connects directly to the 

BlackBerry Infrastructure

 using port 3101. However, if your organization's security policy requires that internal systems cannot connect directly to the Internet, you can install the 

BlackBerry Router

 or a TCP proxy server. The 

BlackBerry Router

 or TCP proxy server acts as an intermediary between the 

BlackBerry Connectivity Node

 and the 

BlackBerry Infrastructure

.

This image shows the following options for sending data through a proxy server to the 

BlackBerry Infrastructure

: no proxy server, a TCP proxy server deployed in a DMZ, and the 

BlackBerry Router

 deployed in a DMZ.