Comment on ISP put me behind NAT
Schmeckinger@feddit.de 11 months agoHow? You can literally turn IPv4 off on your whole network, or selectively by device. But if you turn off your IPv4 you will get cut off of a good chunk of the internet.
Comment on ISP put me behind NAT
Schmeckinger@feddit.de 11 months agoHow? You can literally turn IPv4 off on your whole network, or selectively by device. But if you turn off your IPv4 you will get cut off of a good chunk of the internet.
poVoq@slrpnk.net 11 months ago
There is nothing wrong with an organization sharing an single IPv4 internally via NAT, but if your ISP sells you a connection to the internet, this by definition means you get a unique public IP address, otherwise it isn’t an internet connection.
IPv6 support could be better for sure, but it is still much better than not having an internet connection at all as in the case of a CGNAT.
DoomBot5@lemmy.world 11 months ago
No it doesn’t. It means you have access to the internet through that company’s infrastructure. You still have full access to the internet behind a CGNAT even if you can’t be reached directly from the internet.
poVoq@slrpnk.net 11 months ago
An internet connection by definition is two-way. The internet was designed as a network of interconnected computers. A one-way only connection like a CGNAT is preventing you from doing a lot of things the internet was designed for.
DoomBot5@lemmy.world 11 months ago
You have a 2 way connection as facilitated by the CGNAT gateway that routes responses back to your network.
Schmeckinger@feddit.de 11 months ago
CGNAT usually only applies to the IPv4. The IPv6 prefix you get is usually public.
poVoq@slrpnk.net 11 months ago
“Usually”? In my experience usually this is not the case. Starlink for example promised to make ipv6 available like that, but AFAIK it is still CGNAT only.
Schmeckinger@feddit.de 11 months ago
I can only talk how it is in Germany, where CGNAT with a public IPv6 prefix is the norm.