Bug ID 938165: TMM Core after attempted update of IP geolocation database file

Last Modified: Oct 18, 2023

Affected Product(s):
BIG-IP AFM(all modules)

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,,,,, 13.1.4,, 13.1.5,, 14.1.2,,,,,,,,, 14.1.3, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 16.0.0,, 16.0.1

Fixed In:
16.1.0,, 15.1.2,

Opened: Aug 19, 2020

Severity: 2-Critical


TMM crashes while running traffic that uses AFM Firewall policies.


Traffic disrupted while tmm restarts.


-- Update IP geolocation database file to the latest version. -- Configure AFM policies with logging enabled. -- Run traffic which hits the AFM policies and triggers logging.


Revert to using the previously working version of the IP-geolocation file. For more information, see K11176: Downloading and installing updates to the IP geolocation database :: https://support.f5.com/csp/article/K11176#restore.

Fix Information

The BIG-IP system now validates the region/country strings returned by the geolocation database for IP addresses used in the traffic.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips