Hi @ineedafleeb,
It is possible ! And quite simple if you can code a bit. All you have to do is build an advanced command, you can learn more about this here :
http://dev.splunk.com/view/python-sdk/SP-CAAAEU2
Instead of building a command that will run on the search results just build one that takes an IP as an input and then send it off to your IPS/Firewall to have the protocol, port or IP blocked.
Feel free to share your code once you're done if you need help reviewing or improving it.
Cheers,
David
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