Bug ID 617690: enable SIP::respond iRule command to operate during MR_FAILED event

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 12.1.1, 12.1.2, 12.1.3,,,,,

Fixed In:
13.1.0,, 11.6.3

Opened: Sep 20, 2016

Severity: 4-Minor


When an message fails to route, it is not possible to return an error status back to the client.


Without this change, it is not possible for the script author to generate a response message to the client based on the routing failure.


When a message fails to route, the MR_FAILED event is raised for the message.



Fix Information

SIP::respond command now works during MR_FAILED event.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips