Bug ID 2131701: The Virtual Server setting serverssl-use-sni can't be configured from the Configuration Utility

Last Modified: Oct 21, 2025

Affected Product(s):
BIG-IP AFM, APM, ASM, AVR, GTM, LTM(all modules)

Known Affected Versions:
15.1.10.8, 16.1.6.1

Opened: Oct 14, 2025

Severity: 4-Minor

Symptoms

There's no configuration option for serverssl-use-sni in the GUI under "Local Traffic" --> "Virtual Servers" --> "Virtual Server List" --> virtual server name --> Configuration (Advanced).

Impact

It's not possible to configure the Virtual Server setting serverssl-use-sni using the Configuration Utility.

Conditions

Use the Configuration Utility to configure a virtual server's serverssl-use-sni setting.

Workaround

Use tmsh (1) or iControl REST (2) to change the serverssl-use-sni setting. (1) root@(bigip-a)(cfg-sync Standalone)(Active)(/Common)(tmos)# modify ltm virtual <vs_name> serverssl-use-sni <TAB> Values: disabled enabled (2) [root@bigip-a:Active:Standalone] config # curl -sku <user>:<password> https://localhost/mgmt/tm/ltm/virtual/<vs_name> | jq .serversslUseSni "disabled" [root@bigip-a:Active:Standalone] config # curl -sku <user>:<password> -X PATCH https://localhost/mgmt/tm/ltm/virtual/<vs_name> -H "Content-Type: application/json" -d '{"serversslUseSni":"enabled"}' | jq .serversslUseSni "enabled"

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips