Exclusions can only set up per scanning server unfortunately. There are some options to prevent certain devices to be scanned in the IP Range scanning options such as No SSH or No Windows, unfortunately a similar option doesn't exist to for instance prevent scanning via SNMP.
As an input for IP Address Exclusions you can either enter an IP Range or individual IP addresses.
I've moved your topic to the wishlist section and have added 2 items to our customer wishlist:
- More exclusion options that can be set up per scanning target such as No SSH and No Windows.
- Allowing the entry of comma separated IP addresses as IP address exclusions.
At this moment in time we can't yet guarantee that these features will be implemented though and we aren't able to provide you with an estimated release date.