In Lansweeper 5.0, your only options are to either:
- Remove these devices' IP ranges from IP Address Range Scanning.
- Create exclusions for specific IP addresses, under IP Address Range Scanning.
In Lansweeper 5.1, currently in beta, you could:
- Disable IP Address Range Scanning.
- Add the "wanted" assets to an asset group and delete the "unwanted" assets.
- Submit the group of "wanted" assets for Asset Group / Type scanning.
This might not be ideal however, as "new" assets in your IP ranges will be missed. A 5.1 beta installer was posted here: http://lansweeper.com/forum/yaf_postst7944_Lansweeper-5-1-0-7-beta.aspx