Bug ID 515817: TMM may not reset connection when receiving an ICMP error

Last Modified: Jan 07, 2026

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6

Opened: Apr 01, 2015

Severity: 3-Major

Symptoms

Connection is not reset after receiving an ICMP error

Impact

Delayed shutdown of connection

Conditions

TMM receives an ICMP error after sending a TCP/SYN on a FastL4 virtual

Workaround

None

Fix Information

TMM will now reset FastL4 connections when receiving an ICMP error in response to TCP/SYN.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips