Bug ID 459467: Self-IP accepts subnet network or broadcast address as address value

Last Modified: Jul 13, 2024

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 11.6.5,,,

Fixed In:

Opened: Apr 28, 2014

Severity: 4-Minor


When creating or modifying a self-IP address, the system accepts the first or last address in a subnet as its address value.


The network address is reserved for identification of a network segment. The broadcast address is reserved by the system to address all nodes in a network at the same time.


This occurs when configuring self-IP addresses.


Do not assign the first or last address in a subnet to a self-IP address.

Fix Information

Added validation to ensure the first and last IP addresses in a subnet remain reserved, and cannot be assigned as self-IP addresses.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips