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Sonicwall NSA-4500 using Netflow v9



I am trying to configure PRTG with Netflow v9. I can see the packets making it to the PRTG server, but the PRTG software isn't seeing it. IPs and ports are correctly pointing to one another. I need help figuring this out.

I did find this one post: "I have found an active flow timeout of 9 minutes within a netflow V9 sensor will work well with a Sonicwall 2400 running SonicOS Enhanced and set to send periodic updates every 10 seconds."

...but it didn't make any difference. I'm not too sure what to try next.

flow netflow sonicwall

Created on Jul 16, 2012 5:53:33 PM

2 Replies



  • UPDATE* I ended up using Netflow v5 even though SonicWall has a v9 option, and it worked. I'm still scratching my head as to why Netflow v9 isn't picked up by PRTG. Is this a bug with PRTG?

Created on Jul 19, 2012 6:31:02 PM



That's not a bug in PRTG, it rather seems that Sonicwall does not use fully compatible Netflow v9 packets, compared to what the original Cisco devices send.

Created on Jul 20, 2012 11:31:35 AM by  Torsten Lindner [Paessler Support]

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