Network Ports required

  • 26 January 2021
  • 2 replies

Badge +1

Hi Team,


Please let me what are the ports that we need to open for the backup process. In which direction we need to open the ports.

Commvault to client


Client to Commvault system


Best answer by Edd Rimmer 26 January 2021, 10:15

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2 replies

Userlevel 4
Badge +7

Hello Nik14,

Can you review the documentation @ and tell me if this answers your question?

In short - 8403 can be used as a tunnel port for everything (data + control traffic) but it really depends on your port / network restrictions to be able to give a definitive answer as you may require one/two way network route if direction of traffic is restricted.


Userlevel 1
Badge +1

Hello Nik14, 

It depends on the agent you are using to perform the backup and the network configuration of your environment. The most usual ports are 8400 and 8403 for communication services between client-CommServe. 

Also, you can use the Network Test Tool and check your environment: