I have T-Mobile home internet (TMHI) in the US, I am using their gateway G4AR and I also have my own third party gateway GL-X3000, both operate like a modem, all the routing and AP is handle by a cascading router, first I had an Asus AX88U configured in Passthrough mode for IPv6, all good on the clients, they will pass IPv6-test.com.
Now I have replaced the Asus with the GL-MT6000, I am using vanilla OpenWrt 23.05.4, I have tried all the possible IPv6 operating modes, maters, relay, etc., and none of the clients pass the IPv6-test.com.
Is there a guide I can use to properly configure the MT6000 for IPv6 with TMHI and their own gateway or the X3000? Thank you
Likely asus was used as wireless bridge.
Check in its web UI.
Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
Remember to redact passwords, MAC addresses and any public IP addresses you may have:
In OpenWrt, what some other systems call "passsthrough" is called IPv6 relay mode.
The T-Mobile network, like most LTE services, routes one /64 prefix to your line. Relay mode ensures the LAN clients have unique IPs within that same /64 (unique last 64 bits, with the same first 64 bits) and then installs a /128 route for each client.
