I have configured my 2920 switch to do RADIUS authentication, which works as expected, however I would also like to allow the local "manager" account to log in even if RADIUS is responding in the case where the RADIUS server is up but maybe the back-end user database is not responding correctly. I realize this is an edge case. Is there a way to do this in Aruba OS? I'm on version 16.02.
When configuring access methods for switch management access, the 'aaa authentication <feature>' commands provide the ability to configure both a primary and secondary authentication method. If you'd like RADIUS to be the primary method and local username/password to be the secondary, you would use the following commands (these cover console/SSH login and enable access, as well as access to the Web UI):
switch(config)# aaa authentication console login radius local
switch(config)# aaa authentication console enable radius local
switch(config)# aaa authentication ssh login radius local
switch(config)# aaa authentication ssh enable radius local
switch(config)# aaa authentication web login radius local
switch(config)# aaa authentication web enable radius local
You can find more background info and suggestions in the ArubaOS-Switch Hardening Guide, as well as the Access Security Guide.
Thanks for the reply, however that's not exactly what I was asking. I actually opened a support ticket with the HPE support portal, and they confirmed that there is no configuration which allows the local user database to be used when the RADIUS server is available.
I'm having same issue using Ansible.
Does support help you with this subject?
I have the similar problem using Ansible.
Does support help you with it?
I'm surprised TAC told you this isn't possible... my switches are configured this way, it works fine. I just tested to confirm--I can use a radius login, or a local login, even with the radius server available. Have you tried adding aaa authentication allow-failthrough to your config?
The aaa authentication allow-failthrough command is for AOS-CX, not available on AOS-Switch, like the 2920.
My mistake, for some reason I thought this was a CX topic.
No problem, it's not always clear what equipment and versions posters use. And it's good to know that it is supported in AOS-CX.
Thank you very much Herman for your answer,
This year our 2920's will be replaced by models supporting AOS-CX software, so it is good to know.
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