Firewall blocking packages exchanged between the NetVault Server and the NetVault Client machines can cause many problems such as
a)- When trrying to add a Client to the NetVault server the machine does not show up in the NetVault Client Management Window.
b)- After finding the machine, the errror "NetVault must be active before the client may be added" occur when trying to add that Client.
c)- Backup Jobs start failing after Firewall settings are changed.
For more information on this topic, please see the Administration Module 1 Introduction to NetVault Backup-Web-based Training
1)- First, Login to both the NetVault Server and NetVault Client machines, open the NetVault configurator, click on the Service tab and make that the NetVault Service is running on both machines,
2)- Run the following ping command to test for connectivity from the NetVault Server to the Client machine and from the NetVault Client to the NetVault Server machine.
2a)- From the NetVault Client machine, run ‘ping <<IP Address of the NetVault server machine>>’ and make sure that it responds.
2b)- From the NetVault Server machine, run ‘ping <<IP Address of the NetVault Client machine>>’ and make sure that it responds.
3)- Now , Open a Command Line Window in both machines and run the following command and make sure that the two machines can connect to each other on the required port.
3a)- From the NetVault Client machine, run ‘telnet <<IP Address of the NetVault server machine>> 20031’ and make sure that it can connect.
3b)- From the NetVault Server machine, run ‘telnet <<IP Address of the NetVault Client machine>> 20031’ and make sure that it can connect.
Note:
You can also use the following commands in a Windows machine to get more information or if the telnet command is not enabled.
(There are different syntaxes for the command netsh in different windows version and edition. Type ‘netsh /?’ to get the correct syntax for your flavor of Windows)
a)- netsh firewall show openports
b)- netsh diag connect iphost localhost 20031
c)- netsh diag connect iphost <IPAddressoftheotherMachine> 20031
