Nagios Support Forum

Hello i am new in Nagios,
How to create source in Network Analyzer ? . How can i find Listening Port and Sender IP Address(es) in my network ? .

The listening port is unique to where you want to send the data from your switch, and the Sender IP Addresses are the IP addresses of the networking equipment that will be sending data into the Network Analyzer.

Looking at the screen for this, and in the Assets.nagios.com guide there is some confusion over the port.
The statement is "Listening port must be unique and over port1024"
This could imply that every device must send on a different port.

Under the Listening port Box it goes on to say - "Multiple switches, routers and servers can send to one port".

This implies that the port is not Unique Per Device but rather Unique in the network and not used for some other traffic?

Please advise or explain.
thanks

We have another doc which defines this a bit better I think: "Sources can also receive Netflow data from multiple different devices as long as they are all sending to the same Source port. This allows users to create sources for specific sections in their environment."

https://support.nagios.com/kb/article.p ... ategory=46

So from an NNA perspective let's say I have three sources, A, B & C.

Source A I've configured to use port 7777 and have both a router and switch sending netflow data to this source
Source B must use a different port, 7778 and a single linux server is sending flow data to this source
Source C will use port 7779 = and lets say this is a Windows machine sending flow data

Hope this clears it up but certainly let us know if otherwise.

can i find listening port and ip address sender using CMD command ?

utmadmin - If I've understood your question correctly, on the sending device you tell it to send flow data over the port you specified on the NNA side as described in the earlier post. As for details on how to get the sending device to do that, that is device-specific so you'd have to check with the vendor.