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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# RTSP

RTSP is an application-level communication protocol for media streaming systems. It allows monitoring a media server remotely, offering typical audio/video player features such as “play” and “pause” and allows time-based access.

## RTSP commands

### Allowed RTSP commands

Add | Inserts a command in the list of additional commands that require authorization.
Delete | Select the command to remove from the list and click on Delete.

### Prohibited RTSP commands

Add | Inserts a command to the list of additional prohibited commands.
Delete | Select the command to remove from the list and click on Delete.

## Maximum size of elements (bytes)

RTSP requests | Maximum size of the request and the response. Allows managing memory overflow.
RTSP header | Maximum size of the header. Allows managing memory overflow.
SDP protocol | Maximum size of an SDP line. Allows managing memory overflow.
Content-Type | Maximum size of the « Content-Type » header.

## RTSP session settings

Max. number of pending requests | Maximum number of requests without responses in a single RTSP session.
Session timeout (seconds) | Duration of a RTSP session in seconds.
Request timeout (seconds) | Duration of a RTSP request in seconds.

## RTSP features

Allow interleaving | If this option is selected, RTSP will be allowed to encapsulate within its own TCP connection RTP/RTCP protocols used for transporting media and usually based on UDP. This may be necessary when UDP traffic is denied.
Allow error messages with content | This option allows accepting error messages containing additional content, in general in HTML.
Allow renegotiation of media transport settings | If this option is selected , the firewall will allow the update of RTP/RTCP transport parameters during a session.

## Support

Disable intrusion prevention | When this option is selected, the scan of the RTSP protocol will be disabled and traffic will be authorized if the filter policy allows it
Log every RTSP request | Enables or disables the logging of SIP requests.