Bug ID 579272: WAM Intermittently does not forward HTTP POST body to server

Last Modified: May 29, 2024

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 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, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6

Opened: Mar 09, 2016

Severity: 3-Major

Related Article: K28625210


Occasionally, WAM forwards only the HTTP headers for POST requests to the pool member. The body is not forwarded.


Clients may be unable to have their HTTP POST requests satisfied.


Customers must have POST requests be cache-able in their AAM policy, which it is by default.


Disable WAM (completely or on a per-URI basis in an iRule) or alter policy to not cache POST requests.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips