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NFS client trying to mount with root on a non-reserved port and gets access denied

Last Updated:

Applies to

  • ONTAP 9 
  • Data ONTAP 8 7-Mode 
  • NFS
  • Network Address Translation (NAT) device
  • VPN (Optional)


  • NFS client unable to mount the volume and get access denied error

[root@linux1 ~]# mount -t nfs /mnt
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting

  • Below error can be seen in EMS Logs:

[mountd_main:warning]: Client [IP_address] trying to mount from a nonreserved port [port_number] as 0

Thu Apr 02 13:41:17 GMT [node01: kernel: Nblade.NfsMountRootOnly:notice]: mount operation by non-root user failed. Vserver ID is xx; ProgramNumber is 100005; client IP address:port is; local IP address is; Procedure number is 1


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