Bug ID 468395: IPv4 Allocation failure ... is out of addresses

Last Modified: Nov 07, 2022

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

Known Affected Versions:
11.4.0, 11.4.1, 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, 11.5.10, 11.5.2, 11.5.2 HF1

Fixed In:
11.6.0, 11.5.3

Opened: Jun 23, 2014

Severity: 3-Major

Related Article: K63044556


Existing Network Access clients have problems reconnecting.


Existing clients cannot reconnect. The system posts messages to the APM logs: IPv4 Allocation failure ... is out of addresses.


This occurs when all of the lease pool IP addresses are allocated to Network Access clients.


Assign more IP addresses in the lease pool.

Fix Information

Network Access clients can reconnect now and the lease pool does not run out of IP addresses.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips