Wrong IPv6? about dynamic-dns-netcup-api HOT 1 CLOSED

Dear @martux69,

Due to the nature of IPv6, every device in your home network usually has its own public IPv6 address (that might be firewalled by your router, but in theory, it is publicly accessible). For this reason, if you want to use the IPv6 address, I recommend you to run the script directly on the device you want to access. Then it should actually be the IP address that you need in order to access the device in question, so exactly what you want. The reason why with IPv4 you always get the router IP address is the usage of NAT. That is why you have to configure port forwarding and so on on your router for IPv4 (so that it knows to which device the request should be forwarded).

Theoretically, with IPv6 it is also possible to find out the public address on the device itself (but the most reliable way for all operating systems and without having to use some kind of tool and parse its output is probably still calling an external service, which is why I am doing it that way).

The URL you mentioned is currently working for me. Maybe it was a temporary outage? The script actually accesses another service (https://v6.ident.me/) in case it does not get a (valid) IP address by one of the services. So this should not affect the usage of the script, as long as the other service is still working.

Kind regards
Lars

from dynamic-dns-netcup-api.