I'm trying to see if IPv6 is working for me (Wireguard use case). If I can do
netcat -6 -l -p 6969 -W 1 && echo "somethingsomething"
and in another terminal I do
echo asd | ns xxxx:xxxx:xxxx:xxx:xxxx:xxxx:xxxx:xxxx 6969
and then the ping gets routed back around and netcat receives the asd and terminates, does that mean everything should be working correctly? With IPv4 this would mean the port is opened correctly but port testers like https://port.tools/port-checker-ipv6/ report either that the port is closed or that "We can NOT see your service on [my IPv6] on port (6969)" .
I cannot login into my router because the ISP went through a merger since the router was installed and the new slow-as-fuck interface doesn't accept the password on the router's sticker.
I need to host a Wireguard gateway on my machine, but since port forwarding is not an option currently I hoped IPv6 would work. Is it actually working now or will I need to call the ISP's support?