I can't scan udp ports

Hi, I just installed Openvas on kali, and I ran my first scan, of all TCP ports. Now when I try to run “All TCP and UDP ports”, it doesn’t start or seems to finish without scanning it. What am I missing here?

Hey, would like to help, but there is a lot of uncertainty about your problem.

Is it not starting, or completing without scanning? What is the target and consider alive config? Is it a single IP, hostname, or IP range? Which scan config are you using - is it the “Full and fast” or a discovery scan?

I’m scanning another IP in my network. I’m using the default scan config options, full and fast. The scan does not start.

Hello and welcome to this community forums.

You can find basic information on choosing the correct port list for your task here:

GSM Manual: 17.2.1 Selecting a Port List for a Task

Choosing to scan All UDP is usually not a good idea when not understanding how the UDP protocol is working as scanning all UDP ports on a single target might take multiple hours or even longer.

See also:

In some situations with port throttling, scanning all TCP and UDP ports can take up to 24 hours or more for a single system.

from GSM Manual: Scan Duration

Relevant existing community forum threads / postings: