Bug ID 743895: Upgrades from 10.2.x fail due to empty virtual address lines in the configuration

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1

Opened: Sep 12, 2018
Severity: 3-Major

Symptoms

In 10.2.x it is possible to have 'empty' virtual address lines in the configuration like this: virtual address 10.10.10.10 {} Lines such as these cause failures when upgrading to any version of BIG-IP software that includes the functionality to to add 'arp disable' to virtual addresses that do not have an explicit configuration for their ARP setting. This functionality is present beginning with software version 11.5.0.

Impact

The upgrade fails without a clear error message.

Conditions

-- 'Empty' virtual address lines in the configuration. -- Upgrading to a version of BIG-IP software that includes the functionality to to add 'arp disable' to virtual addresses that do not have an explicit configuration for their ARP setting.

Workaround

Upgrade to 11.5.0 first, and then upgrade to the desired version.

Fix Information

None

Behavior Change