Bug ID 496197: iRule in v10 allows overriding "down user-disabled" node to receive new requests

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP Install/Upgrade, LTM(all modules)

Known Affected Versions:
10.2.4, 11.4.1, 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

Opened: Dec 12, 2014

Severity: 3-Major


When pool member is forced-down and has a irule pool command, the command can still direct the requests to the node. After upgrading to v11.x it resets the connection saying "Pool member unavailable".


Traffic could inadvertantly be directed to a forced down pool member.


Disable the pool member then select it from an iRule



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips