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Which Network File System (NFS) TCP and NFS UDP ports are used on the storage system?

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • Data ONTAP 7-Mode
  • NFS v3

Answer

  • The default ports used by the storage controller are as follows,

ONTAP 9:
111   TCP/UDP portmapper
2049  TCP/UDP nfsd
635   TCP/UDP mountd
4045  TCP/UDP nlockmgr
4046  TCP/UDP status
4049  TCP/UDP rquotad


Data ONTAP 7-Mode:
111   TCP/UDP portmapper
2049  TCP/UDP nfsd
4046  TCP/UDP mountd
4045  TCP/UDP nlockmgr
4047  TCP/UDP status
4049  TCP/UDP rquotad

 
  • It is possible to modify those default ports, therefore to check the currently configured ports on your storage controller please use the following commands,


Data ONTAP 7-Mode:

7dot> options rpc
rpc.mountd.tcp.port          4046
rpc.mountd.udp.port          4046
rpc.nlm.tcp.port             4045
rpc.nlm.udp.port             4045
rpc.nsm.tcp.port             4047
rpc.nsm.udp.port             4047
rpc.pcnfsd.tcp.port          4048
rpc.pcnfsd.udp.port          4048
rpc.rquotad.udp.port         4049

ONTAP 9:
cDot::*> nfs show -vserver NFSsvm -fields rquotad-port ,nlm-port ,nsm-port ,mountd-port
vserver mountd-port nlm-port nsm-port rquotad-port
------- ----------- -------- -------- ------------

NFSsvm    635         4045     4046     4049

cDot::*>

  • Alternatively show the ports listening on the node with the following

cdot::> network connection listening show -node <node name>
Vserver Name     Interface Name:Local Port              Protocol/Service
---------------- -------------------------------------  -----------------------
Node: node 1
Cluster          node1_clus1:7700                       TCP/ctlopcp
vs01             VS01_lif01:40001                       TCP/cifs-msrpc
VS01             VS01_lif01:135                         TCP/cifs-msrpc
VS01             VS01_lif01:4049                        UDP/unknown

 

  • These ports list can also be seen from from most unix clients with the command: rpcinfo -p <storage-controller-IP>
     
ONTAP 9:
   program vers proto   port  service
    100000    2   udp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    3   udp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    4   tcp    111  portmapper
    100003    3   udp   2049  nfs
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100005    1   udp    635  mountd
    100005    2   udp    635  mountd
    100005    3   udp    635  mountd
    100005    1   tcp    635  mountd
    100005    2   tcp    635  mountd
    100005    3   tcp    635  mountd
    100021    4   udp   4045  nlockmgr
    100021    4   tcp   4045  nlockmgr
    100024    1   udp   4046  status
    100024    1   tcp   4046  status


Data ONTAP 7-Mode:
   program vers proto   port  service
    100011    1   udp   4049  rquotad
    100024    1   tcp   4047  status
    100024    1   udp   4047  status
    100021    4   tcp   4045  nlockmgr
    100021    3   tcp   4045  nlockmgr
    100021    1   tcp   4045  nlockmgr
    100021    4   udp   4045  nlockmgr
    100021    3   udp   4045  nlockmgr
    100021    1   udp   4045  nlockmgr
    100005    3   tcp   4046  mountd
    100003    3   tcp   2049  nfs
    100005    2   tcp   4046  mountd
    100005    1   tcp   4046  mountd
    100003    2   tcp   2049  nfs
    100005    3   udp   4046  mountd
    100003    3   udp   2049  nfs
    100005    2   udp   4046  mountd
    100005    1   udp   4046  mountd
    100003    2   udp   2049  nfs
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper

Additional Information

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