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?

Article Comments

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?


Jan, 2016 - Permalink

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!


Jan, 2016 - Permalink

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 :)


Jan, 2016 - Permalink

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


Jan, 2016 - Permalink

That is correct :)


Jan, 2016 - Permalink