Bug ID 687098: IPv6 RADIUS servers not supported for remote authentication

Last Modified: Mar 30, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP All(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,,

Fixed In:

Opened: Oct 04, 2017
Severity: 3-Major


Authenticating against an IPv6 RADIUS server is not supported, only an IPv4 server.


Logon operation will time out, as if the server did not respond.


This applies to remote authentication to log on to the BIG-IP system for management purposes.


Use an IPv4 server. If you have an IPv6 management IP, then you will need to have the IPv4 server reachable over a dataplane VLAN.

Fix Information

Support for IPv6 RADIUS servers has been added.

Behavior Change