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Using the Internet without IPv4 connectivity

(jamesmcm.github.io)
296 points jmillikin | 3 comments | 29 Jun 25 08:23 UTC | HN request time: 0.534s | source
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throw0101c ◴[29 Jun 25 11:56 UTC] No.44412375[source]▶
If anyone wants to try / use IPv6, but their ISP does not provide it, Hurricane Electric (HE) has offered a tunnel service for many years now:

* https://tunnelbroker.net

* https://ipv6.he.net

There are scrips available to bring up a tun device on your system (or router) and route traffic over it:

* https://fedoraproject.org/wiki/IPv6_tunnel_via_Hurricane_Ele...

* https://brandonrozek.com/blog/obtaining-ipv6-address-hurrica...

* https://wiki.dd-wrt.com/wiki/index.php/IPv6_setup_Hurricane_...

* https://forum.mikrotik.com/t/auto-update-script-for-hurrican...

* https://docs.rockylinux.org/guides/network/hurricane_electri...

replies(4): >>44412504 #>>44412674 #>>44412681 #>>44413969 #
pQd ◴[29 Jun 25 12:46 UTC] No.44412681[source]▶
aspect worth noting: up to my knowledge HE's tunnel will work only if you're assigned public IPv4 by your ISP. if you're behind a carrier grade NAT - too bad, you'll need to use another solution to get IPv6 to your home.
replies(2): >>44413039 #>>44414087 #
1. Abekkus ◴[29 Jun 25 13:36 UTC] No.44413039[source]▶
Strange. This sounds like something Hurricane Electric specifically limited. There’s nothing in CGNAT that would naturally break such a tunnel
replies(2): >>44413126 #>>44413489 #
2. TechDebtDevin ◴[29 Jun 25 13:46 UTC] No.44413126[source]▶
I use tunnels all day like this with cgnat on multiple devices.
3. pQd ◴[29 Jun 25 14:34 UTC] No.44413489[source]▶
HE is using plain stateless IPv6 in IPv4 tunnel - it's neither TCP nor UDP, it's not NAT'able.

it's relatively simple for them to implement [ the stateless part ] but due to that puts some requirements on the party establishing the tunnel.