Bug ID 721570: TMM core when trying to log an unknown subscriber

Last Modified: May 07, 2019

Bug Tracker

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1

Fixed In:
14.1.0, 14.0.0, 13.1.1.2

Opened: May 23, 2018
Severity: 1-Blocking
Related AskF5 Article:
K20285019

Symptoms

Using CGNAT or FW-NAT with subscriber-id logging enabled can cause a TMM core when the subscriber ID is unknown.

Impact

Traffic disrupted while tmm restarts.

Conditions

-- A LSN pool or FW-NAT source translation that has a logging profile with subscriber-id enabled. -- A PEM profile that allows unknown subscribers.

Workaround

Config PEM to deny connections from unknown subscribers.

Fix Information

The system no longer crashes. It logs 'unknown' for unknown subscribers.

Behavior Change