Enterprise Gatekeepers; Dialing Public Ip Addresses - TANDBERG Gatekeeper User Manual

TANDBERG Gatekeeper User Manual
Set example.com as the domain name you are using on both the Gatekeeper and Border
Controller.
Update the DNS entry for example.com with an A record representing the Border Controller
and an SRV record which returns the Border Controller's A record as described in section
7.3

9.2 Enterprise Gatekeepers

When an enterprise has already deployed a Gatekeeper to manage calls within the private
network, it may be desirable to deploy a traversal solution without having to alter the existing
deployment.
In order to achieve this, the TANDBERG Gatekeeper is neighbored with the existing enterprise
Gatekeeper as shown in Figure 21. The Enterprise Gatekeeper is also neighbored with the
TANDBERG Gatekeeper.
Figure 21: Neighboring with an enterprise gatekeeper
The TANDBERG Gatekeeper and Border Controller are configured as described in section 9.1,
in order to provide firewall traversal.

9.3 Dialing Public IP addresses

Figure 22 shows a private endpoint (1001) calling an endpoint on a public IP address. In this
case the public endpoint is not registered to a Gatekeeper and can only be reached using its IP
address. In order to successfully traverse the firewall it is necessary for the call to be relayed
through the Border Controller: the TANDBERG Gatekeeper should not attempt to place the call
directly to the public endpoint.
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