Thank you for your feedback.
We are currently using Ontap 9.5P8.
I'm talking about a NAS LIF for CIFS. We have a dedicated LIF for management traffic. The firewall is disabled.
xxx::> network interface show -vserver nv02001asds10 -fields role, firewall-policy, data-protocol
vserver lif role data-protocol firewall-policy
------------- -------------------- ---- ------------- ---------------
nv02001asds10 nv02001asds10-202s01 data cifs data
nv02001asds10 nv02001asds10-202s02 data cifs data
nv02001asds10 nv02001asds10-m01 data none mgmt