New Question
 
 
PRTG Network Monitor

Intuitive to Use.
Easy to manage.

200.000 administrators have chosen PRTG to monitor their network. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free PRTG
Download >>

 

What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general. You are invited to get involved by asking and answering questions!

Learn more

 

Top Tags


View all Tags


icmp #1231 error

Votes:

0

Your Vote:

Up

Down

when I ping at command line, it works but in prtg, it shows the system is down 'icmp error #1231'.

It was working almost without any error.

what can be the problem?

error icmp prtg

Created on May 30, 2014 3:08:39 PM by  dschoi (0) 1



2 Replies

Votes:

0

Your Vote:

Up

Down

Hello,

thank you very much for your KB-Post. PRTG uses a standard Windows API Call to ping targets. So it just passes the target IP / Hostname to Windows, and Windows then in turn returns the ping response times, or errors. So here, Windows passes back the "ICMP #1231"-error.
It is an odd error though, please try if the suggestions from the folioing MSDN-Threads help:

best regards.

Created on Jun 3, 2014 8:29:43 AM by  Torsten Lindner [Paessler Support]



Votes:

0

Your Vote:

Up

Down

It is working now!

Somehow the gateway ip was disappeared (i don't know how). Anyway it works and I appreciate your support.

Thanks,

Created on Jun 3, 2014 6:03:05 PM by  dschoi (0) 1



Please log in or register to enter your reply.


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.