Polycom 6000 manual Configuring the System for Use with a Firewall or NAT, Firewall Settings

Administrator’s Guide for Polycom QDX 6000 Systems

2Configure these settings on the Quality of Service screen:

Setting	Description
Type of	Specifies your service type and lets you choose how to set the
Service	priority of IP packets sent to the system for video, audio, and
	far-end camera control. The priority of audio and video packets
	you set here must be the same as the corresponding settings on
	the router.
	 IP Precedence - Represents the priority of IP packets sent to
	the system. The value can be between 0 and 5. If this setting is
	selected, enter the value in the Type of Service Value field.
	 DiffServ - Represents a priority level between 0 and 63. If this
	setting is selected, enter the value in the Type of Service
	Value field.
Type of	Specifies the IP Precedence or Diffserv value for Video, Audio,
Service Value	and Far End Camera Control.
Enable LPR	Lets you specify whether to use Polycom Lost Packet
	Recovery™ (LPR™) for calls.
	This option is enabled by default. The LPR feature will be
	enabled to ensure the picture effect at the endpoint when a
	packet is lost in network transmission.

3Select and configure these settings on the Bandwidth screen:

Setting	Description
Maximum	Specifies the maximum transmit line speed between 64 kbps
Transmit	and 4096 kbps.
Bandwidth
Maximum Receive	Specifies the maximum receive line speed between 64 kbps
Bandwidth	and 4096 kbps.

Configuring the System for Use with a Firewall or NAT

A firewall protects an organization’s IP network by controlling data traffic from outside the network. Unless the firewall is designed to work with H.323 video conferencing equipment, you must configure the system and the firewall to allow video conferencing traffic to pass in and out of the network.

Firewall Settings

Network Address Translation (NAT) network environments use private internal IP addresses for devices within the network, while using one external IP address to allow devices on the LAN to communicate with other devices outside the LAN. If your system is connected to a LAN that uses a NAT, you will need to enter the NAT Public (WAN) Address so that your system can communicate outside the LAN.

To set up the system to work with a firewall or NAT:

1Go to System > Admin Settings > Network > IP > Firewall.

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