Nagios Support Forum

Good Morning,
I'm CentOS 7.x (Release)

If the device you want to monitor bandwidth has SNMP enabled on it, you can use Nagios XI's Network switch / router wizard to monitor the interface status and bandwidth for that device.
Is that what you are looking for?
What is the device you are trying to monitor?

A server even!
I wanted to know the input and output, as well as the Plugin "Check_net_win_usage" does.
However, for Linux

Yes, you can use the Network Switch / Router wizards against Linux and Windows system as long as they have SNMP enabled correctly, it should work.

I am not familiar with the Check_net_win_usage plugin, can you post it or a link to it so I can see what it does?

The Network Switch / Router wizard will give you the same results as that plugin.

As the image in this field by, I put the name of the interface?

No, this is the port that your device is using for SNMP.

Does your machine have SNMP enabled?

It appeared this!

- Is SNMP enabled on the server? to find out, run service snmpd status
- Try snmpwalk from Nagios XI server:
snmpwalk -v 2c -c public <client ip>
Was the walk successful?
- check what snmp packages you have installed on the remote box. Run the following command, and show us the output:
yum list installed | grep snmp