Bug ID 514975: Reset packet after connflow idle timout contains seq number 0 in nPath mode.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 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

Opened: Mar 27, 2015

Severity: 3-Major

Related Article: K50744036

Symptoms

When a reset is triggered after the connflow idle timeout expiry, the packet contains the sequence number 0 to the client side. Due to this, client rejects it as an invalid packet.

Impact

The client connection is left idle.

Conditions

Fast L4 profile with loose init and loose close enabled for nPath mode.

Workaround

None.

Fix Information

Fast L4 profile with loose init and loose close enabled for nPath mode now correctly handles a reset triggered after the connflow idle timeout expiry.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips