Skylight performance element: LX Release Notes 7.9.4

These release notes cover the requirements, new features, and changes for the Skylight Element: LX firmware version 7.9.4. Please read all notes prior to installing this firmware version.

For more information, refer to Features and User Material Section: Skylight performance elements: Features and User Material
## Requirements
This firmware version applies to the following Skylight element: LX, resulting from changes in the TLS version, the following software versions are compatible with SkyLIGHT Director Version 1.3 (now Skylight orchestrator) and above:

• 7.1.1.1
• 7.3.0.3
• 7.4
• 7.5
• 7.6
• 7.7
• 7.8
• 7.8.1
• 7.8.2
• 7.8.2.1
• 7.8.3
• 7.9
• 7.9.1
• 7.9.2
• 7.9.3
• 7.9.4

Firmware Version 7.9.4_24917 (2022-07-29)

New Features and Enhancements

Update dropbear SSH to version 2022.82
Updated to latest dropbear version to avoid vulnerabilities.

ICMP redirect security issue
The ICMP Redirect configuration feature supports disabling/enabling ICMP Redirect feature via CLI/WEB interface.

Operational Considerations

Important Notes

• The Skylight element: LX firmware is delivered in a consolidated file prefixed by “ACC”, e.g. ACC_7.X_YYYY.afl. This file contains the firmware for the GT, GX , LX and LT Performance Element products. It cannot be used with any other product.
• IMPORTANT: Prior to upgrading the firmware on a unit where the History Buckets feature is enabled, certain precautions may need to be taken to prevent a loss of history data during the upgrade.
• After upgrading to 7.9.1 or 7.9.2, the SCP is no longer able to send files, reporting the following error: Code = 3: URL using bad/illegal format or missing URL. This is due to a syntax change and customer needs to edit the URL after upgrading to 7.9.2 or 7.9.3.
  The URI generic syntax (in RFC 3986) consists of a hierarchical sequence of five components: URI = SCHEME ':' ['//' AUTHORITY] PATH ["?" QUERY] ["#" FRAGMENT]. In this, AUTHORITY = [USER_INFO "@"] HOST [":" PORT]. The AUTHORITY part and the PATH part are isolated by the slash ('/') character if the AUTHORITY exists.