Example: Setting H.323 ALG Media Source Port Ranges

This example shows how to disable the media source port feature.

• Requirements
• Overview
• Configuration
• Verification

Requirements

Before you begin, understand and configure any Avaya H.323-specific features. See the Administrator Guide for Avaya Communication Manager, Avaya IP Telephony Implementation Guide, and Avaya Application Solutions IP Telephony Deployment Guide at http://support.avaya.com.

Overview

The media source port feature enables you to configure the device to allow media traffic on a narrow or wide range of ports. By default, the device listens for H.323 traffic on a narrow range of ports. This example shows how to configure the device to open a wide gate for media traffic by enabling the media source port feature.

Configuration

J-Web Quick Configuration

Step-by-Step Procedure

To disable the media source port feature:

1. Select Configure>Security>ALG.
2. Select the H323 tab.
3. Select the Enable Permit media from any source port check box.
4. Click OK to check your configuration and save it as a candidate configuration.
5. If you are done configuring the device, click Commit Options>Commit.

Step-by-Step Procedure

To disable the media source port feature:

1. Set a narrow gate for media traffic by disabling the media source port for the H.323 ALG.
   [edit]user@host# delete security alg h323 media-source-port-any
2. If you are done configuring the device, commit the configuration.
   [edit]user@host# commit

Verification

To verify the configuration is working properly, enter the show security alg h323 command and the show security alg h323 counters command.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• Understanding H.323 ALG Media Source Port Ranges
• H.323 ALG Configuration Overview