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Specifying P2P settings

The P2P Settings screen provides the following options for configuring P2P settings:

  • Manual configuration of TCP/UDP ports: Where the administrator at the customer's organization can manually provide a range of TCP/UDP ports to be used by the Cisco WebEx Connect client when it attempts to negotiate a direct P2P connection. Allowing the customer's administrator to manually specify a port range helps minimize security risk because the Cisco WebEx Connect client will only ping the ports within this range when attempting to establish a direct P2P connection. Port range is specified as port numbers allowable within a minimum and maximum port number.
  • Enabling or Disabling P2P connections within the same Organization: Where the administrator at the customer's Organization can enable or disable Internet transmission from negotiating P2P connections within the same Cisco WebEx Connect Organization or domain. Typically, this involves disabling Audio/Video Server communications within the same Cisco WebEx Connect Organization or domain. Allowing the customer's administrator to disable A/V Server communications is useful when both the Cisco WebEx Connect clients are within the same Organization or domain because it helps conserve bandwidth when applications like P2P video are used.

     

    Notes:

    Disabling P2P connections within the same Organization or domain may result in the following:

    • The firewall penetration feature of P2P communications may be disabled.
    • Using Cisco WebEx Connect servers as a proxy to the connection is disabled. This reduces bandwidth consumption outside the corporate network.
    • A possible increase in the failure rate of call attempts.

The P2P Settings screen is applicable only for customers with Cisco WebEx Connect version 7.2.2 or later.

To specify P2P port settings:

  1. Select the Configuration tab to open the Organization Information screen as the default view.
  2. Under Connect Client, Select P2P Settings to open the P2P Settings screen.

     

     

  3. Select Configure Ports Manually to specify the UDP/TCP port range manually. If you do not select this option, the system establishes direct connectivity by randomly choosing a port.
  4. Under UDP/TCP Port Range, enter:
    • The minimum port number in the Min box. You can enter any port number between 1024 and 65525.
    • The maximum port number in the Max box. You can enter any port number between 1034 and 65535.

     

     

    Notes:

     

     

    • For example, if your UDP/TCP range is 7050—7550, the Cisco WebEx Connect client scans all ports only in this range to negotiate a direct P2P connection.
    • Ensure that the Max port number is always greater than the Min port number. For example, Min=1034 and Max=1024 is an invalid port range.
    • The lower and upper values for the Min and Max port ranges are system-defined. You can only enter a port number that falls within these predefined ranges; between 1024—65525 and 1034—65535.

     

  5. Select Disable internet transmission to negotiate P2P connections within the same Organization if you want to restrict A/V Server communication for users within the same Cisco WebEx Connect Organization. The impact of enabling this option is described earlier in this topic. If you do not select this option, the connection is established through the A/V server.
  6. Select Save.
  7. To revert to a previous configuration of P2P settings, select Reset.
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