That's the requester IP address and yes, all on my core.
This is what I get and it looks like yours.
{"device":{"device":null},"params":[{"type":"int","Command":"192","CommandParameter":"97","CommandHint":"Normally when a device is turned on all the inputs and outputs are selected automatically. If this parameter is specified, only the settings along this pipe will be set.","CommandDescription":"PK_Pipe"},{"type":"string","Command":"192","CommandParameter":"98","CommandHint":"Normally when a device is turned on the corresponding \"pipes\" are enabled by default. if this parameter is blank. If this parameter is 0, no pipes will be enabled. This can also be a comma seperated list of devices, meaning only the pipes to those devic","CommandDescription":"PK_Device_Pipes"}]}