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

Last Modified: Aug 19, 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, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.0.0

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