Polycom ViaVideo manual Open and Assign Ports in the Firewall, System Information screen

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Appendix

Network Connection

automatically discovers your external IP address and enters it in the NAT Outside (WAN) Address field.

If you are using a proxy server, the Auto discover NAT IP

Address option may not work correctly. You should enter your

NAT’s external IP address manually in this case.

Open and Assign Ports in the Firewall

To configure your ViaVideo to operate with a firewall, perform the following tasks.

Before you Begin

Before you start, determine the internal IP address of the PC running

ViaVideo. To do so, start the ViaVideo application and look in the

System Information screen.

In Your Firewall

You will need to open and assign ports to the PC running ViaVideo in your router’s firewall interface software. The exact steps and terms involved are probably different in your firewall interface.

For example, opening and assigning ports to the PC running ViaVideo is referred to in the Linksys firewall interface software as “Forwarding,” while the Cisco firewall software refers to assigning ports as “Port to Application Mapping.” However your firewall interface describes it, the concepts and tasks remain the same.

1.Open a range of ports in your firewall. We recommend that you open the default ports: 3230-3235 for TCP and UDP.

2.Open port 1720 in your firewall. You must open this port for your ViaVideo to receive incoming calls.

3.Assign the port range to the PC running ViaVideo.

In some firewall interfaces, opening and assigning port numbers is performed in one step.

In some firewall interfaces, you assign the ports to an IP address, while in others you assign the ports to an application, in this case ViaVideo. Either way works fine.

In ViaVideo

Now you need to point ViaVideo at the right port numbers.

© Polycom, Inc.

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ViaVideo User’s Guide

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Contents ViaVideo User’s Guide Page Patent Information WarrantyOther Restrictions Trademark InformationRADVision Statement Important SafeguardsRegulatory Notices FCC Notice Underwriters’ Laboratories’ StatementContents System Information and Diagnostics Audio ConnectionNetwork Connection Troubleshooting Contents ViaVideo User’s Guide Viii Hardware Requirements System Requirements and InstallationInstalling Software Installing HardwareSoftware Requirements Turn on the Camera Starting ViaVideoViaVideo built-in microphone Initial SetupHeadset with microphone Using Manual Dialing Placing a CallCamera Calibration Info icon Call status light IP address Chapter Using the Address Book or Speed Dialing New entry Edit entry Delete entry On-Screen Remote Control Answering Calls Ending a CallClosing ViaVideo Chapter Calling Features Using ViaVideoHang Up Using the Remote ControlVolume SnapshotAudio Mute Minimize Window Information Screen AccessWindow Controls Picture in Picture PIPSending Snapshots Re-Size the ViaVideo DisplayLeaving a Callback Message Address Book and Speed Dial Using the Address BookDo This Local Entries Local and Global Address Book EntriesGlobal ILS Server Entries Go to the Directory Services screen Register This System When Powered OnDisplay Global Address Using Speed Dial Delete AllLock Dial Controlling Audio and VideoControlling Audio Via the On-Screen RemoteVia the Audio Screen Mute Auto Answer Calls in the Audio screen System Muting VideoChapter Multiple IP Addresses Collaboration and Application SharingChapter Using the System Information Screens System Information and DiagnosticsSystem Information and Diagnostics Diagnostics Network Statistics Advanced Statistics Audio JitterVideo Jitter Call Status Reset System Camera Calibration Generate Tone Setup Auto Answer Auto Start ViaVideo When Auto Start ViaVideo is selectedGeneral 323Mail Show Half-Size Display When Show Half-Size Display isShow Animations User NameDirectory Services Register this system when starting ViaVideo LAN and InternetDisplay Global Addresses IP Address Wins ResolutionDefault Gateway Host NameAudio Line Volume ControlMaster Volume Wave VolumeSoftware PC SoftwareViaVideo Software Setup GatekeeperDialing Speeds Display IP Dialing Extension 323Multiple IP Addresses Gatekeeper Dialing Speeds Use Fixed Ports Quality of Service and FirewallsDynamic Bandwidth Auto discover NAT IP addressNAT outside WAN address IP PrecedenceChapter PC with Speakers Audio ConnectionPC with Headphones Headphones Only Headset with Attached Microphone Simple Connection Just a Modem, Thanks Pick Your Connection TypeRouter With Firewall, Using a DMZ Router With NAT, No FirewallRouter With Firewall Through a Virtual Private Network Configure Your ConnectionConfigure your ViaVideo for NAT When you select Auto discover NAT IP Address, ViaVideoSelect the System is Behind a NAT option System Information screen Open and Assign Ports in the FirewallRouter With Firewall, Using a DMZ Assign your ViaVideo to the DMZ Through a Virtual Private Network Appendix What’s a Firewall? Opening Ports Port Number AssignationIs it Safe? What’s a DMZ? What’s a Network Address Translator? Appendix Problem Explanation Solution General TroubleshootingInfoDiagnosticsGenerate Audio TroubleshootingWave, and Master Volume ControlsWindows Control Panel Video TroubleshootingBandwidth option InfoSetupH.323QOSError Message Explanation Solution Error MessagesInstallation Errors ErrorsSetupH.323 Gatekeeper settingAppendix C