Bug ID 494280: TMM crashes when PPTP finds a redirected flow when checking for an existing tunnel

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5, 11.5.2

Opened: Dec 03, 2014
Severity: 2-Critical
Related AskF5 Article:
K16256

Symptoms

TMM crashes when PPTP finds a redirected flow when checking for an existing tunnel.

Impact

Traffic disrupted while tmm restarts.

Conditions

PPTP-ALG and CGNAT on a chassis system when a blade has been added with a stale PPTP tunnel.

Workaround

None

Fix Information

The system now drops the new flow/tunnel and allow it to clean up, so TMM no longer crashes when PPTP finds a redirected flow when checking for an existing tunnel.

Behavior Change