Bug ID 1064785: BIG-IP must respond return code 0x01 (unacceptable protocol level) if the MQTT protocol level is not supported

Last Modified: Mar 26, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1

Fixed In:
17.1.0

Opened: Nov 30, 2021
Severity: 3-Major

Symptoms

BIG-IP aborts the connection abruptly.

Impact

BIG-IP aborts the connection.

Conditions

Basic virtual server with MQTT profile.

Workaround

None

Fix Information

BIG-IP responds with a CONNACK with a specific return of 0x02, an unacceptable protocol level.

Behavior Change