Scan not finding Windows Host

Good morning. I’m newer to OpenVas/Greenbone via Kali but was trying to use it at work (small business) just to see any potential vulnerability issues. At home I have the subnet [] which it works fine and finds all devices. I just create a new task, input the subnet as [] and I’m good to go.

At work we have a [] subnet. We have around 30 devices on the network. First when I go to create the new task and input the subnet as [] it says invalid subnet and will not let me create the task. I then input it as and it will allow me to start the scan. I’ve ran it three times that way and it only finds three peripherals (the router,security camera, and an access point) but no workstations. I can plug in the same exact port on the switch, do a network scan using Advanced IP Scanner, and it finds everything.

Am I missing something easy or doing something wrong? Thanks!


when choosing the category for a topic please try to have a look at the category description for each category first:

The current used category is/was (Description: About the Vulnerability Tests category) which is about vulnerability tests (the so called “NASL scripts”).

Your question is completely unrelated to the NASL script itself but about scanning with GVM so i have moved this topic into the better fitting (Description: About the Source Edition (GSE) category).