Bug ID 722232: Cannot delete FQDN template node if another FQDN node resolves to same IP address

Last Modified: Oct 17, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,,, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,, 15.0.0, 15.0.1,,,,

Opened: May 29, 2018

Severity: 4-Minor


If multiple FQDN nodes and corresponding pool members are created, with FQDN names that resolve to the same (or a common) IP address, you may not be able to delete any of the affected FQDN nodes even after its corresponding FQDN pool member has been deleted.


The FQDN template node remains in the configuration and cannot be deleted, while an ephemeral node or pool member exists with an IP address corresponding to that FQDN name.


This occurs under the following conditions: -- Multiple FQDN template nodes exist with FQDN names that resolve to the same (or a common) IP address. -- FQDN pool members exist for each FQDN template node, with corresponding ephemeral pool members for each which share the same IP address. -- One of the FQDN pool members is removed from its pool. -- You attempt to delete the corresponding FQDN template node.


To work around this issue: 1. Remove all remaining conflicting FQDN pool members (with FQDN names that resolve to the shared/conflicting IP address). 2. Delete the desired FQDN node. 3. Re-create the remaining FQDN pool members to replace those removed in step 1.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips