Bug ID 457525: When DNS resolution for AppTunnel resource fails, the resource is removed

Last Modified: Apr 10, 2019

Bug Tracker

Affected Product:  See more info
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, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1

Fixed In:
11.6.0, 11.5.3 HF2

Opened: Apr 16, 2014
Severity: 3-Major
Related AskF5 Article:


App tunnel gets removed from webtop if one of items is not DNS resolvable.


If one of the items in app tunnel resource is not DNS resolvable, the app tunnel resource gets removed.


This issue occurs when at least one of items in app tunnel resource is not DNS resolvable.


This issue has no workaround at this time.

Fix Information

APM removes an app tunnel resource from a webtop only if all resource items are not DNS resolvable; otherwise, the app tunnel continues to work with resource items that are DNS resolvable.

Behavior Change