alt Hacker NewsWith CGNAT becoming more widespread, formats like this might need expansion to include location data for ports. Ie. Port 10,000-20,000 are consumers in New york, port numbers 20000-30000 are in Boston, etc.
Replies
lxgr • today at 9:02 AM
Why would any CG-NAT split their volume that way?
IPv4 addresses are not that scarce yet, and realistically any CG-NAT will have several IPv4 addresses per metro area, if only to allow for reasonable levels of geolocation (e.g. to not break the "pizza near me" search use case).
raggi • yesterday at 9:06 PM
Do you have actual evidence of this? What ASN operates this way?
kalaksi • yesterday at 9:24 PM
Sounds awful, though. Maybe we should get more widespread usage for IPv6 instead.
➕ show 1 reply
That is really interesting. I wonder if we have any internal data on this. I will check.
We are trying to work with ISPs everywhere, so if port level geolocation of the IP address is common, we surely need to account for that. I will flag this to the data team. To get the ball rolling, I would love to talk to an ISP operator who operates like this. If you know someone please kindly introduce me to them.