Bug ID 757777: bigtcp does not issue a RST in all circumstances

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4

Fixed In:
15.1.0, 14.1.2.5, 13.1.5

Opened: Feb 06, 2019
Severity: 4-Minor

Symptoms

bigtcp does not issue a TCP reset, e.g. when using the iRule reject command on CLIENT_ACCEPTED

Impact

TCP RST is not sent, and the SYN is silently dropped.

Conditions

bigtcp in use, tcp connection, connection ungracefully shut down via a 'reject' command in an iRule

Workaround

none

Fix Information

bigtcp virtuals send now a TCP RST if needed.

Behavior Change