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Alternative to Flow?



I have some servers and I would like to know the conversations between them. Ideally netflow is a good option, but my switch Cisco Nexus 5548p is not compatible.

I would like to create a map of conversations. The info I'd need is:

• Source and destination IPv4 or IPv6 addresses

• Source and destination TCP/User Datagram Protocol (UDP) ports

I would need to check the conversations that happens in one month, so simple packet capture maybe is too heavy.

Any idea? Does Prtg offer any way to achieve this?

flow maps netflow packet-sniffing prtg

Created on Jul 28, 2015 12:56:03 PM

Last change on Dec 2, 2021 8:24:49 AM by  Maike Guba [Paessler Support] (2,404) 2 1

1 Reply



You could install a remote probe on one server and have the Packet Sniffer sensor analyze the traffic for you. They work just like the flow sensors, but they don't need any flow compatability.

Manual for the Packet Sniffer sensor can be found here. A manual on the filtering option is located here.

Created on Jul 29, 2015 10:42:40 AM by  Stephan Linke [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.