Bug ID 624155: MRF Per-Client mode connections unable to return responses if used by another client connection

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3

Opened: Oct 20, 2016
Severity: 3-Major


When an outgoing connection is created in per-client mode, that connection is exclusively for use by the client whose message was routed to the destination. All messages (response or requests) received by the server are automatically forwarded to the client. The messages received from the server are forwarded to the original connection from the client (even if it has been closed).


Messages from the new client connection will be routed using the previously created outgoing connection. But messages received from the server will be forwarded to the original connection from the client which is closed. These message will fail to be delivered.


The connection from the client closes and the client connects again.



Fix Information

When message arrive from a new client connection, the outgoing connection will be to forward messages received from the server to the new connection.

Behavior Change