Bug ID 478920: SIP::discard is not invoked for all request messages

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP All(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: Sep 11, 2014
Severity: 4-Minor


SIP::discard is invoked only for the first two request messages, and the other request messages are allowed to pass through.


Any iRule that uses SIP::discard might not work as expected.


This occurs when an iRule that uses SIP::discard, for example: when SIP_REQUEST { SIP::discard }.


To work around this issue, you can use MR::message drop in MR event to drop the message instead

Fix Information

The ingress queue for the messages is cleared properly when SIP::discard iRule is present. Now all request messages are correctly dropped if the SIP::discard iRule is present in SIP_REQUEST event.

Behavior Change