Router With Firewall; Configure Your Viavideo For Nat - Polycom ViaVideo Technical Reference

Chapter 3

Router With Firewall

© Polycom, Inc. 2001
You can enter the address manually, or let ViaVideo enter it
automatically by selecting the Auto Discover IP Address
option. When you select Auto Discover IP Address, ViaVideo
automatically discovers your external IP address and enters it in
the External IP Address field.
If your network uses a proxy server, the Auto Discover IP
Address option may not work correctly. Enter your NAT's
external IP address manually in this case.
If you are using a firewall, you need to perform the following tasks:
• Configure ViaVideo to work with your firewall's Network Address
Translator (NAT)
• Open and assign ports in the firewall to the PC running
ViaVideo.

Configure your ViaVideo for NAT

To configure ViaVideo to use your router's Network Address
Translator (NAT):
1. Go to the Firewall/Lan Connection screen (System
Info>Setup>Lan&Internet>Firewall/LAN Connection).
2. Select the Using a NAT option.
Note When you select the Using a NAT option, you will not be
able to make video calls from the PC running ViaVideo to
other PCs in your local area network. To make calls to other
PCs in your local area network, de-select the Using a NAT
option. You can re-select this option at any time to re-enable
exterior video calling.
3. Enter your NAT's external IP address in the External IP
Address field.
You can enter the address manually, or let ViaVideo enter it
automatically by selecting the Auto Discover IP Address
11
Network Connection
ViaVideo Technical Reference