1. Go to Receiver properties.
2. Click on Data Sources
3. Click on Rename at the bottom.
4. Edit the User Defined 1 to appropriate name that reflects your custom parser device. Once you change this, it will reflect in your Data Source properties and custom parser rule assignment.
hope it helps,
I cannot see anyway to specify the Device Class if I do this. The issue is being able to set the class so that filters that use, say, CLASS:Firewall will work.
That's true. I was just wondering if it fixed the other issues with locally defined devices. The ugly workaround I proposed lets the device integrate into predefined views where device class is used and it does give you a name for the device - but the wrong one. It also appears to allow the Device Type ID filter to be used as designed.