Bug ID 435993: Tunnel recipient drops encapsulated traffic instead of forwarding

Last Modified: Nov 22, 2021

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

Known Affected Versions:
10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF9, 11.2.1 HF16

Opened: Oct 30, 2013

Severity: 3-Major

Related Article: K14985


It is possible for the GRE tunnel to decapsulate SYN packets to wrong tmm, causing intermittent failures when accessing the local virtual server on CMP systems.


TMM suffers packet/xfrag leakage over time and eventually cores due to out of memory.


This occurs on CMP systems.



Fix Information

Establishment of CMP-redirected flows no longer erroneously expires/replaces NOEXPIRE flows, so this probably no longer occurs.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips