Bug ID 649171: tmm core in iRule with unreachable remote address

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3

Opened: Mar 06, 2017

Severity: 2-Critical

Symptoms

TCP::unused_port <remote_addr> <remote_port> <local_addr> [<hint_port>] with a non reachable remote_addr, tmm cores

Impact

Traffic disrupted while tmm restarts.

Conditions

This occurs when using TCP::unused_port in an iRule and the remote address is not reachable

Workaround

create faux route for the destination address

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips