webdig
Yes, that happens sometimes. Some ASNs have very little or no data available, so the tool ends up generating an empty blocklist.
If that’s the case, you can look up the ASN ranges manually using a service like this:
https://hackertarget.com/as-ip-lookup/
Then block those ranges with the bulk IP block tool in the WebUI.
Tip: don’t go overboard with ASN blocking. Some ASNs are massive, and blacklisting them entirely can hit performance hard. Best approach is to block only when you’re under attack from that ASN, then remove it once things calm down.
