Bug ID 552931: Configuration fails to load if DNS Express Zone name contains an underscore

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
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, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 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, 12.0.0, 12.0.0 HF1, 12.0.0 HF2

Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2

Opened: Oct 16, 2015
Severity: 3-Major
Related AskF5 Article:
K22407421

Symptoms

A configuration with a DNS Express Zone with an underscore in the name does not load, even though the gtm global-settings general domain-name-check is set to any of allow-underscore, svn-compatible, or none.

Impact

Cannot load the LTM configuration when restarting BIG-IP system when DNS Express Zones that have an underscore character in the name.

Conditions

-- Configuration setting gtm global-settings general domain-name-check is set to any of allow-underscore, svn-compatible, or none. -- DNS Express Zone exists with an underscore in the name.

Workaround

Force the GTM configuration to load by sequentially running the following commands: tmsh load sys config gtm-only. tmsh load sys config.

Fix Information

All FQDNs may now contain underscore character. The BIG-IP system now correctly load configurations that contain DNS Express Zones with underscores in the name.

Behavior Change