Bug ID 1020109: Subnet mask property of virtual addresses not displayed in management GUI

Last Modified: Jun 10, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3, 16.0.0,, 16.0.1,

Opened: May 20, 2021
Severity: 4-Minor


You cannot determine the subnet mask for a displayed virtual address using only the BIG-IP management GUI.


Potential difficulty in troubleshooting and verifying config due to having to use other methods (accessing the CLI) to check a virtual address's netmask.


-- A virtual address (automatically created by any virtual server) exists in the configuration. -- Using the management GUI.


Use tmsh to determine the subnet mask.

Fix Information


Behavior Change