Bug ID 553311: Route pool configuration may cause TMM to produce a core file

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.2.1, 11.5.3, 12.0.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF1, 11.5.4

Opened: Oct 19, 2015

Severity: 3-Major

Related Article: K13710973


TMM might produce a core file and take the action defined in configuration.


Traffic disrupted while tmm restarts.


Client-side route pool configuration that configures a route pool to route back and has auto lasthop disabled.


Avoid using any route at client side (using auto lasthop or lasthop pool).

Fix Information

The tmm crash caused by the route pool configuration is fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips