ModemManager-1.6.2: does not work with Huawei E3372h ??? -153

[Thomas Schäfer]

Am Samstag, 14. Januar 2017, 01:16:07 schrieb Martin MOKREJŠ:
>   I think NM could save some effort by first checking for
> /proc/sys/net/ipv6/conf/ttyUSB0, and only after that proceed with more
> detailed checks. Second, does ttyUSB0 support IPv6 at all? It does same for
> tun0 and tun1 interfaces. I just do not have IPv6 enabled in kernel, at
> all.


Please don't do to much at once. 

/dev/ttyUSB0 is *no* IP-Interface, it is just a serial interface, it will 
never appear at /proc/sys/net/ipv?/*

/dev/ttyUSB was/is used by older modems for ppp

newer modems use /dev/ttyUSBX only for controlling/monitoring 

ppp0 is an ip-Interface.

Regards,
Thomas


PS: Thanks for investigating IPv6-things, but I think with this modem and an 
bad ISP you have no chance. (based on the informations you already collected)