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Not receiving flows - Netflow v5



I have a PC setup with the Network Monitoring tool. I have it configured to pull the data from one of my routers, but I am not receiving any data. Firewall and Antivirus have been disabled.

Here is the configuration from my router:

ip flow-export source Loopback0 
ip flow-export destination 2055 
ip flow-top-talkers 
top 30 
sort-by bytes 
cache-timeout 30000 
Netflow is definitely logging the Netflows, but my PC just isn't receiving them for some reason:

USWMVARTOPS001>sh ip flow ex
Flow export v1 is enabled for main cache
  Exporting flows to (2055)
  Exporting using source interface Loopback0
  Version 1 flow records
  2980185282 flows exported in 661045457 udp datagrams
  0 flows failed due to lack of export packet
  0 export packets were sent up to process level
  0 export packets were dropped due to no fib
  0 export packets were dropped due to adjacency issues
  0 export packets were dropped due to fragmentation failures
  0 export packets were dropped due to encapsulation fixup failures

cisco netflow-v5 prtg-network-monitor

Created on Jan 10, 2017 5:57:39 PM

Last change on Jan 11, 2017 5:50:46 AM by  Felix Saure [Paessler Support]

1 Reply



In order to find out if proper and compatible Netflow packets are arriving at the PRTG host, please use our Netflow Tester. Please post a screenshot or the log from the tester.

Created on Jan 11, 2017 8:52:22 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.