Using Video-Conferencing Systems with Firewalls

 

Firewalls
A firewall protects an organization's network by controlling data traffic from outside the network.

Unless the firewall is designed to work with H.323 videoconferencing equipment, it will prevent successful videoconferencing because it does not allow unsolicited data to enter the network.

Configuring for Use with Firewalls

The following ports must be opened in the firewall and assigned to the videoconferencing endpoint(s):

·         Port 389 (TCP): For ILS registration

·         Port 1503 (TCP): Microsoft NetMeeting T.120 data sharing

·         Port 1718 (UDP): Gatekeeper discovery

·         Port 1719 (UDP): Gatekeeper RAS (Must be bi-directional)

·         Port 1720 (TCP) H.323 Call setup (Must be bi-directional)

·         Port 1731 (TCP): Audio call control (Must be bi-directional)

·         Ports 3230-3235 (TCP/UDP): Signaling and control for audio, call, video and data/FECC

·         Port 3603 (TCP): ViaVideo Web interface (ViaVideo users only)

 

If the firewall does not support H.323 then Fixed ports need to be set on the codec.

 

For HDX Systems:

  • TCP 1720
  • TCP3230-3243
  • UDP 3230-3285

 

 Return to Rentals Page