Bug ID 1635189: TMM crashes when firewall NAT policy uses automap with Active FTP connection

Last Modified: Oct 15, 2025

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

Known Affected Versions:
16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.5.0, 17.5.1

Fixed In:
17.5.1.2, 17.1.3

Opened: Aug 30, 2024

Severity: 3-Major

Symptoms

Tmm crashes when running an Active FTP connection through a virtual server that uses a firewall NAT policy with source automap.

Impact

TMM crash/core. Traffic disrupted while TMM restarts.

Conditions

-- Firewall NAT translation using source automap. -- FTP profile applied on the virtual server (Active FTP connection). -- Connection traverses a FW NAT policy referencing automap

Workaround

None

Fix Information

TMM no longer restarts due to software failure.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips