Bug ID 528198: reject in iRule event FLOW_INIT may not respond with a RST

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.6.0, 11.6.1, 11.6.2, 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

Fixed In:
12.1.0, 11.6.3, 11.5.5

Opened: Jun 16, 2015

Severity: 3-Major

Symptoms

reject in iRule event FLOW_INIT currently does not respond with a RST

Impact

RST is not sent

Conditions

iRule on a tcp virtual IP which has reject in FLOW_INIT event.

Workaround

If licensed/provisioned for AFM, "ACL::action reset" can be an option.

Fix Information

TMM now correctly sends RST when reject is executed in an FLOW_INIT event of an iRule.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips