Bug ID 974881: Tmm crash with SNAT iRule configured with few supported/unsupported events with diameter traffic

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 16.0.0,, 16.0.1,

Fixed In:
16.1.0,, 15.1.4,

Opened: Dec 17, 2020

Severity: 2-Critical


Currently, for diameter, a SNAT iRule can be configured with MR_INGRESS and MR_FAILED events. Certain events can cause tmm to crash.


Traffic disrupted while tmm restarts.


A SNAT iRule is configured with the events CLIENT_ACCEPTED, DIAMETER_INGRESS and DIAMETER_EGRESS for diameter



Fix Information

Fixed a tmm crash related to handling certain events in an iRule.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips