Bug ID 960749: TMM may crash when handling 'DNS Cache' or 'Network DNS Resolver' traffic

Last Modified: May 31, 2022

Bug Tracker

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

Known Affected Versions:
16.0.1,, 16.0.0,, 15.1.2, 15.1.1,,, 14.1.3,,

Fixed In:
16.1.0,, 15.1.3, 14.1.4,, 12.1.6,

Opened: Oct 29, 2020
Severity: 1-Blocking


TMM crashes, dumps a core file, and restarts.


Traffic disrupted while tmm restarts. A redundant unit will fail over.


-- The configuration includes one or more 'DNS Cache' or 'Network DNS Resolver' objects. -- The DNS Cache or Network DNS Resolver objects receive traffic.



Fix Information

TMM no longer crashes when 'DNS Cache' or 'Network DNS Resolver' objects handle traffic.

Behavior Change