Polycom ViewStation Manuel d'utilisateur télécharger pdf (Page 205)

Network Address Translation

Network Address Translation (NAT) lets home office or small

network environments use internal IP addresses for the devices

within the network, while using one external IP address to

communicate with the outside world (Wide Area Network). However,

many Small Office Home Office (SOHO) routers provide NAT

services that are not fully H.323 compliant.

Therefore, this solution is provided to enable the user make calls

outside the internal network.

Note At this time, it is not possible to make video conferences

calls within the internal network when using the NAT setting.

To make video conferencing calls within the network when using this

solution, simply de-select the System is behind a NAT option and

make the call. Re-select the System is behind a NAT option to

re-activate this feature and make external calls.

Before You Start Configuring NAT

1. Determine your NAT’s external (WAN) IP address. This is the

address assigned to your NAT’s external interface (connected to

the Internet).

2. Determine the IP address of your ViewStation. This can be

found on the System Information screen.

Setting up NAT

1. Go to the Quality of Service and Firewalls screen (System

Info > Admin Setup > LAN/H.323 > H.323 > QoS).

2. Select Use Fixed Ports.

3. Select System is behind a NAT.

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Polycom ViewStation Manuel d'utilisateur Page 205