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How to resolve host IP address by Name



Hello, I am pulling my data using netflow from my router but what i discovered is that some hosts are not resolved by their DNS name instead it's showing IP address.Could you pls point out to me how the Host can be resolved by DNS name when I import my flow into PRTG server

dns netflow-v5 prtg

Created on Nov 21, 2011 11:23:47 AM

5 Replies



This is done automatically (as would be the case with the entries where the DNS name is being resolved). If this is not working for a specific IP address, then PRTG isn't able to resolve the respective DNS - this would, however, be an issue of the DNS configuration, otherwise PRTG wouldn't resolve any DNS names.

Created on Nov 21, 2011 2:55:20 PM by  Patrick Hutter [Paessler Support] (7,225) 3 3



Thanks for your response.Are saying that I would need to check the DNS configuration or what ? If yes,how can i check the DNS config on PRTG?

Created on Nov 21, 2011 3:53:58 PM



PRTG has no explicit DNS-Configuration. It simply uses the Windows settings in that relation.

Created on Nov 22, 2011 12:59:28 PM by  Torsten Lindner [Paessler Support]



Hello, I have the same problem as phemmy.

I using an Netflow sensor on router which supervise the differents VPN of many of my clients. My problem is that the IP address of the VPNs is on the RFC1918, I can not configure a DNS on my Windows because two addresses can be used in two different VPN with two differents name.

How i can configure a statically IP resolution ?

If it's possible, can i configure it differently on a two group ?

Thanks for your help.


Created on Nov 4, 2014 12:44:34 PM



PRTG can only use DNS-Resolution of the underlying Windows. So the only place to configure this would be Windows.

Created on Nov 5, 2014 8:29:02 AM by  Torsten Lindner [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.