NTLM vs Kerberos authentication mechanism CIFS sessions on 7-mode

jessango — Wed, 04 Jun 2025 09:49:16 GMT

Hello.

We're trying to adapt our environment to work with Kerberos authentication and we know of to check the authentication mechanism being used for CIFS sessions on ONTAP but not for 7-mode.

The command to check for the authentication mechanism in ONTAP that we are using is:

cifs session show -fields auth-mechanism

Is there any equivalent command for 7-mode to check the authentication mechanism being used for the current CIFS sessions?

Thanks in advance for your help.

Re: NTLM vs Kerberos authentication mechanism CIFS sessions on 7-mode

Ontapforrum — Tue, 16 May 2023 10:16:15 GMT

For 7-Mode, there is no equivalent command available. You can use packet capture to discern client authentication mechanism.

How to collect a network trace with pktt in Data ONTAP 7-Mode
https://kb.netapp.com/onprem/ontap/da/NAS/How_to_collect_a_network_trace_with_pktt_in_Data_ONTAP_7-Mode

topic Re: NTLM vs Kerberos authentication mechanism CIFS sessions on 7-mode in ONTAP Discussions

NTLM vs Kerberos authentication mechanism CIFS sessions on 7-mode

Re: NTLM vs Kerberos authentication mechanism CIFS sessions on 7-mode