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Is there any impact NetBIOS over TCP is disabled for file sharing using the CIFS/SMB protocol

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Category:
ontap-9
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nas
Last Updated:

Applies to

ONTAP 9

Answer

No, there is no impact on file sharing using the CIFS/SMB protocol when closing the port for NetBIOS over TCP.

Additional Information

To disable NetBIOS over TCP in CIFS/SMB on a NetApp system, follow these steps:
  • Use the following command to check if NetBIOS over TCP is enabled or disabled:

::> cifs options show -fields is-netbios-over-tcp-enabled

  • To disable NetBIOS over TCP, use the following command:

::> cifs options modify -vserver [vserver name] -is-netbios-over-tcp-enabled false

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