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External v. Internal IP addresses

  • August 29, 2014
  • 9 replies
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Does Casper 8 or 9 log the external IP address of a machine as well as the internal IP address?

We've had cases where a machine has been stolen and our current (non-Casper) reporting software (script the runs hourly and send some info) tries to log the external IP address (using sources like what's my ip, etc). This has helped us track down not only the machines but the thief.

Best answer by mking529

Casper 8 user here, hoping to move up soon but I highly doubt the behavior has changed..

The JSS logs whatever IP it sees, so if the computer is on the same LAN as the JSS Server, it will log the internal IP address. If the machines checks into the JSS from outside of your network, it will log the external IP address.

9 replies

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  • Valued Contributor
  • Answer
  • August 29, 2014

Casper 8 user here, hoping to move up soon but I highly doubt the behavior has changed..

The JSS logs whatever IP it sees, so if the computer is on the same LAN as the JSS Server, it will log the internal IP address. If the machines checks into the JSS from outside of your network, it will log the external IP address.


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  • Author
  • Valued Contributor
  • August 29, 2014

Ah! That's actually exactly what we'd want. Using the 'local' IP address could result in lots of 192.168.x.x address, which are useless for tracking.


  • August 29, 2014

You could also create an EA using something like ```
dig +short myip.opendns.com @resolver1.opendns.com
``` - might also want to use an EA that reports current wireless network names if you're worried about theft.


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  • Author
  • Valued Contributor
  • August 29, 2014

Still learning - what's an EA?


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  • Valued Contributor
  • August 29, 2014

EA is Extension Attribute. In the JSS you can have custom commands run and have their results saved in the computer's inventory report. Simple example is keeping track of uptime with the uptime command. Pretty useful stuff.


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  • Author
  • Valued Contributor
  • August 29, 2014

Ah, sweet. More stuff to learn! :-)

Thanks.


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  • Contributor
  • August 29, 2014

@pete_c

You could also create an EA using something like dig +short myip.opendns.com @resolver1.opendns.com - might also want to use an EA that reports current wireless network names if you're worried about theft.

Might you share your wireless network EA?


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  • New Contributor
  • August 29, 2014

In version 9 of the Casper Suite both addresses will be reported in the computer record. So you should see both listed like the following when viewing the general tab for the computer.

IP Address:301.44.62.2
Reported IP Address:100.1.21.249


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  • New Contributor
  • August 30, 2014

What's the JSS server for Johnston IA