4 ms·

I've been working on this and have built that database, though we only expose at the IP level: https://bigpicture.io/docs/api/#ip-api https://bigpicture.io/docs

• blibble 5y ago
  given abuse coming from a given IPv6 address: which subnet do I need to block to stop the user behind that address (for fraud detection it switches from block to identify) for IPv4 this is generally the /32 (the single IPv4 address) for IPv6 it's probably a /64, but may be a /56 or even a /48, and on some crappy providers even a /128 if the subnet is smaller than you think it is you risk banning an entire ISP (or country), whereas if if it's too large the abuse continues it's quite a complicated problem as by design you can have subletting (subnetting!) within a block, e.g. a VPS provider gets a /48 from its ISP, and then they sublets out /64s to their customers (while not necessarily giving them all their own RIPE/ARIN records)
  • mfrye0 5y ago
    Got it. Yeah, it's definitely tricky. The other aspect is that a decent chunk of the IPv4 space at least is fairly dynamic. We've seen some blocks change owners every few weeks.
  • 2Gkashmiri 5y ago
    can i ask a question? is it possible for people to "own" ipv4 addresses? like we can own domain names? something like /29 Subnet or /28? if i spent like a hundred bucks or something, i dont know... just asking. how would that work, does that "bring your own ip" that vps providers talk about mean this? i
    • JustFinishedBSG 5y ago
      Yes by becoming an ASN. In pactice you cannot have less than a /24 because nobody will announce less than a /24