4 ms·
That's interesting. We use a Sierra Wireless EM 7455 (IIRC, not in work mode now...) with generic global firmware. I am 100% sure our software performs no 4 to
by usr1106 5y ago
That's interesting. We use a Sierra Wireless EM 7455 (IIRC, not in work mode now...) with generic global firmware. I am 100% sure our software performs no 4 to 6 translation. So it would need to be in the modem. But that would mean it needs to be a standardized operator-independent protocol. Never heard that such thing exists.
> I'm not sure if there are still any legacy connectivity options that will fallback to v4.
That sounds the most likely option to me.
PS. Not able to watch the video now. Hope not to forget at a more suitable moment.
- Dagger2 5y ago464xlat is standardized and can be set up automatically. All it needs is a DNS query to any v4-only hostname to detect if DNS64 is in operation. Most 4g modems work as routers exposing an ethernet interface to the host, so it's certainly possible that it's doing 464xlat in the firmware, and if it doesn't tell you on some sort of status page then the only real hint that it's doing it would be a reduced path MTU. I wouldn't be surprised if T-Mobile offer legacy service to any type of business contract or non-phone client though.
- usr1106 5y ago> Most 4g modems work as routers exposing an ethernet interface Not idea about most. I have seen it that way, but our Sierra Wireless requires ModemManager and appears as a wwan network interface.