Hi,
I m using a RUTX11 router inside a robot (https://duvam.net/didier/)
I can control it locally, but I would like to be able to control it remotely.
I m using a SFR SIM, I configured the SIM for ipv4/ipv6, after doing so, I checked that my ipv6 is activated with tools like : Testez votre IPv6.
Then I configured a ssh port forwarding to the raspberry connected to the router but I can’t connect. I noticed that, when I create the port forwarding rule, I have the following summary : IPv4 tcp, udp From any host in wan Via any router IP at port 2222
As it say IPV4 tcp, udp, is it possible to create a rule for IPv6 input ?
Short answer: you can’t.
Albeit SFR uses a public IPv6 prefix by default all ports are closed, and the IPv4 address is private (in 100.64.0.0/10).
I am not aware of commercial offers of SIMs/APNs with public addresses from SFR so the device won’t be reachable from the outside.
If you want to reach it you’ll have to build a VPN I suppose you’ll want it to be fast enough and with low latency so the simplest would be to use Wireguard between the router and another device with a public address (a VM will do).
You can also try tailscale and/or zerotier, however speed / latency won’t be good enough for your requirements.
Thanks a lot for the fast and precise answer, maybe it would be easier to switch operator, do you know by any chance a french operator that allow ipv6 port forwarding on his sim card ?
Thx
No I don’t. You can ask Orange or Free (for this purpose Bouygues=SFR cause ran sharing) if you have a company / Kbis they might have something in store however I have serious doubts.