I'm setting up Splunk for Cisco IPS for the first time. It looks like it's able to connect, but seems to not be able to retrieve events.
Fri Aug 19 12:00:41 2011 - INFO - Checking for exsisting SubscriptionID on host: x.x.x.x
Fri Aug 19 12:00:41 2011 - INFO - SubscriptionID: sub-3-adf9579a found for host: x.x.x.x
Fri Aug 19 12:00:41 2011 - INFO - Attempting to connect to sensor: x.x.x.x
Fri Aug 19 12:00:41 2011 - INFO - Successfully connected to: x.x.x.x
Fri Aug 19 12:00:41 2011 - ERROR - Exception thrown in sdee.get(): HTTPError: HTTP Error 400: Bad Request
Just stop the script and rm the *.run files in the apps var/run directory. Then start it again. The subscription id refers to some internal mechanism that supposedly helps the ips to remember which events you already fetched..
This error happens when the subscription id for some reason is no longer valid on the device end. You need to delete your x.x.x.x.run file(s) and allow the script to attempt to open a new session without an existing subscription id.