Requirements for using IPv6
Before you can use IPv6 on your SMB/CIFS server, verify which versions of ONTAP and SMB support it and what the license requirements are.
ONTAP license requirements
No special license is required for IPv6 when SMB/CIFS is licensed.
SMB protocol version requirements
For SVMs, ONTAP supports IPv6 on all versions of the SMB protocol.
Note
NetBIOS name service (NBNS) over IPv6 is not supported.
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