Polycom ViaVideo Technical Reference
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Polycom ViaVideo Technical Reference

Polycom ViaVideo Technical Reference

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Technical Reference
June 2001 Edition

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Summary of Contents for Polycom ViaVideo

  • Page 1 Technical Reference June 2001 Edition...

  • Page 2: Table Of Contents

    Open and Assign Ports in the Firewall ........12 Router With Firewall, Using a DMZ............. 14 Configure Your ViaVideo for NAT .......... 14 Assign your ViaVideo to the DMZ .......... 14 Through a Virtual Private Network ............15 What’s a Firewall? ................... 17 Opening Ports ..................
  • Page 3 ViaVideo Technical Reference www.polycom.com...

  • Page 4: Welcome

    Introduction Welcome Although ViaVideo is a simple tool to use, some aspects of its setup and configuration deserve a more in-depth discussion than can be provided in the context of the online help. For this reason, this ViaVideo Technical Reference is provided.
  • Page 5 The DSL Reports website has a wealth on information on broadband access providers, as well as diagnostic tools for testing bandwidth throughput, packet loss testing and IP address directories (see the Tests link). The DSL Reports website address is: http://www.dslreports.com ViaVideo Technical Reference www.polycom.com...

  • Page 6: Audio Connection

    Audio Connection Because of the multiple possibilities for audio connection with the ViaVideo camera unit, the following information is provided to help you correctly install your audio connection. PC with Speakers This diagram shows the correct connection from the ViaVideo audio line out to the PC line in when using speakers.

  • Page 7: Pc With Headphones

    Chapter 2 Audio Connection PC with Headphones This diagram shows the correct connection from the ViaVideo audio line out to the PC line in when using headphones. Select Headphones or Speakers in the Audio screen (System Information>Setup>Audio) when using this type of audio connection.

  • Page 8: Headphones Only

    ViaVideo camera unit processor: • In-call audio • Keypad tones • Audio test tone. You will not be able to hear sounds generated by the ViaVideo application on your PC: • Far and near site ring tones • Splash screen sound effects •...

  • Page 9: Headset With Attached Microphone

    ViaVideo camera unit processor: • In-call audio • Keypad tones • Audio test tone. You will not be able to hear sounds generated by the ViaVideo application on your PC: • Far and near site ring tones • Splash screen sound effects •...

  • Page 10: Network Connection

    Network Connection Although connecting any networked device can be a confusing task, we at Polycom are all for simplifying this process for you as much as possible. When you start the ViaVideo application for the first time, ViaVideo’s setup wizard leads you through a series of configuration steps that set up ViaVideo’s network connection configuration...

  • Page 11: Simple Connection - Just A Modem, Thanks

    “What’s a NAT?” on page 19. Router With Firewall If your network connection is through a router with a firewall, use the configuration instructions on page 11. For more information about firewalls, refer to “What’s a Firewall?” on page 17. ViaVideo Technical Reference www.polycom.com...

  • Page 12: Router With Firewall, Using A Dmz

    Router With Firewall, Using a DMZ If your network connection is through a router with a firewall, and you want to set up your PC with ViaVideo in a “Demilitarized Zone” (DMZ) use the configuration instructions on page 14. For more information about DMZs, refer to “What’s a DMZ?”...

  • Page 13: Router With Nat, No Firewall

    2. Enter your PC’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 option. When you select Auto Discover IP Address, ViaVideo automatically discovers your external IP address and enters it in the External IP Address field.

  • Page 14: Router With Firewall

    Chapter 3 Network Connection 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.

  • Page 15: Open And Assign Ports In The Firewall

    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 so that ViaVideo can listen for incoming calls and make outgoing calls. The exact steps and terms involved may be different in your firewall interface, but the concepts are the same.
  • Page 16 Chapter 3 Network Connection Note When you assign port 1720 to the PC running ViaVideo, this routes all incoming H.323 calls to that PC. This has the effect that no other devices in your local area network can receive incoming video or voice over IP calls (this includes IP phones).

  • Page 17: Router With Firewall, Using A Dmz

    Assign your ViaVideo to the DMZ If your router’s firewall software provides a “Demilitarized Zone” or DMZ, simply follow your firewall’s instructions to assign the internal IP address of the PC running VIaVideo to the DMZ. This allows full ViaVideo Technical Reference www.polycom.com...

  • Page 18: Through A Virtual Private Network

    Whenever you select, or de-select the Using a VPN option, you must re-start ViaVideo for your configuration change to take effect. When you start ViaVideo, it detects the presence of multiple IP addresses assigned to your machine, and asks you which one you want to choose.
  • Page 19 System Information screen, in the bottom of the application window, and in your address book user information. If you want to change IP addresses once ViaVideo is already running, go to the H.323 screen (System Info>Setup>H.323 Setup>H.323) and click Choose Other IP Address.

  • Page 20: What's A Firewall

    If you are using a VPN for other purposes (such as logging in to a server at work), and do not want to use the VPN for your ViaVideo connection, make sure Using a VPN is not selected, and configure ViaVideo for the type of connection you want to use.

  • Page 21: Port Number Assignation

    UDP packet transfer. If you wish to assign a different range of ports, you can specify any registered, non-assigned ports in a 6-port range to ViaVideo. For a list of registered, non-assigned ports, go to: http://www.isi.edu/in-notes/iana/assignments/port-numbers. When you assign the ports to the ViaVideo application, the router reserves the assigned ports for use by ViaVideo.

  • Page 22: What's A Dmz

    Setting up your ViaVideo’s computer in a DMZ is the quickest way to configure your ViaVideo to run while using a firewall. For more information about configuring your video communications server in a DMZ, see “Router With Firewall, Using a DMZ”...
  • Page 23 IP address for the device’s internal IP address. When the answering packet comes back, the NAT notes the indentifier, re-assigns the packet to the device’s internal IP address, and sends it on its merry way. ViaVideo Technical Reference www.polycom.com...

  • Page 24: Multiple Ip Addresses

    Chapter 3 Network Connection Multiple IP Addresses If you are set up to use multiple IP addresses, ViaVideo detects the presence of these addresses. The first time you start up the ViaVideo application, ViaVideo presents the Multiple IP Addresses screen.
  • Page 25 Chapter 3 Network Connection ViaVideo is running, you must restart the application so that ViaVideo can detect the new IP address. ViaVideo presents the Multiple IP Addresses screen, and you can choose which IP address you want to use. Once you restart the ViaVideo application, ViaVideo uses the IP address you specified.

  • Page 26: Network Configuration Screens

    Chapter 3 Network Connection Network Configuration Screens Firewall/LAN Connection In this screen, you can configure ViaVideo’s Network Address Translator (NAT), Virtual Private Network (VPN), and firewall options. Using a NAT Alerts ViaVideo to use the IP address that appears in the External IP Address field as its external IP address.
  • Page 27 ViaVideo. When operating behind a firewall, you must open and assign a range of 6 ports to ViaVideo, as well as port 1720. If you are using NetMeeting, you must also assign port 1503 to NetMeeting. TCP Addresses Specify the TCP ports you will assign to ViaVideo in your firewall.

  • Page 28: Qos

    Chapter 3 Network Connection In this screen, you can configure ViaVideo’s IP precedence and dynamic bandwidth options. IP Precedence Specifies the priority given IP packages sent by ViaVideo. The default value for IP precedence is 5. Dynamic Bandwidth Specifies use of dynamic bandwidth allocation.
  • Page 29 Chapter 3 Network Connection ViaVideo Technical Reference www.polycom.com...

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