What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags


View all Tags

Use two network cards

Votes:

0

Goodmorning,

On the server where PRTG is installed I've got 2 network cards. Each card is configured for the same LAN with only a difference in the IP. How can I choose if a sensor has to use the card A or the card B?

network-card prtg sensor

Created on Jan 22, 2016 8:47:32 AM



Best Answer

Accepted Answer

Votes:

0

Hi,

This will only work if you put the sensor on a remote probe that has only one IP and uses this one for outgoing monitoring requests. Problem here is that you can't tell a sensor which NIC to use when they're in the same network since it's done with a low level Windows API call. If they're in different networks, that's a different story; PRTG would then do it automatically :)

Created on Jan 25, 2016 2:39:17 PM by  Stephan Linke [Paessler Support]



5 Replies

Votes:

0

Hi Andrea,

What difference would it make when they're in the same network? :) Do you want to have high availability so that if one NIC is down, the other one is used? Or does the target respond different, depending on the IP address?

Created on Jan 25, 2016 9:15:12 AM by  Stephan Linke [Paessler Support]

Last change on Jan 25, 2016 9:15:29 AM by  Stephan Linke [Paessler Support]



Votes:

0

Hi Stephan,

I need 2 Ip cause in my firewall I setup a rule that allow 1 IP to use a carrier and the 2nd IP to use another carrier. So if I ping a remote computer using IP1 or IP2 as source I can test the carrier of the internet connection.

Atm I can only see if my company network is working well with the default carrier BUT I need to check if the other carrier cover the entire network or if there's some problems. Last week all seems ok but the default carrier had got a blackout (10 minutes) and only during this fault I saw that even the second carrier has some problem.

If there's another way to manage this let me know it!

Created on Jan 25, 2016 10:01:17 AM



Accepted Answer

Votes:

0

Hi,

This will only work if you put the sensor on a remote probe that has only one IP and uses this one for outgoing monitoring requests. Problem here is that you can't tell a sensor which NIC to use when they're in the same network since it's done with a low level Windows API call. If they're in different networks, that's a different story; PRTG would then do it automatically :)

Created on Jan 25, 2016 2:39:17 PM by  Stephan Linke [Paessler Support]



Votes:

0

So the only solution is to put a remote probe on another server?

Created on Jan 25, 2016 3:18:39 PM



Votes:

0

That is correct :)

Created on Jan 26, 2016 6:41:12 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.