CSN Number: 02070901 Date: 07.09.2002
Submitted by: :Andrew McCarthy Updated: 11.13.2003
 
Configuring a LinkSys Cable/DSL Gateway for Videoconferencing
 
Emblaze-VCON Product: none
Non-Emblaze-VCON Product: BEFSR41 ver.2, BEFSRU31, BEFSR11 running firmware version 1.40.2
 
Problem Description:
Getting "Grayed out" remote video during a videoconference through a Linksys Cable/DSL gateway.
 

Resolution:
You must configure the router to allow the video traffic on both the ingress and egress. Configure the router as follows:

  • Log into the router as the Administrator, by default no user name and the password is admin.
  • Click on the Advanced tab on the upper right of the window.
  • Click on the Forwarding tab, under the Service Port Range enter 5004 ~ 6004, under Protocol select both, and enter the IP address of the machine to receive video, click apply.
  • Click the Port Triggering radio button, enter an Application name, under the Trigger Port Range and Incoming Port Range enter 1024 ~ 65535, click apply.

In some instances you may need to enable the NAT feature in the Meeting Point software.

  • Within Meeting Point go to Video, Properties, Communication, click Advanced, select the check box for NAT and type the external or route(able) IP address.
  • This IP address can be found in the router setup under Status, WAN IP address
 

Related Notes or Documents:

Firewall ports to open for video conferencing
Support Note: #02042401
File Date: Mar 31, 2003

Traversing Firewalls and Proxies with Video over IP (H.323): Issues and Solutions
Adobe PDF Document - 92K
File Date: Nov 11, 2003

 
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