OpenWRT - MC7455 (MBIM) not working as expected.

[Bjørn Mork]

Aleksander Morgado <aleksander at aleksander.es> writes:

> Hey,
>
> <debug> [1485259217.322211] [mm-bearer-mbim.c:319]
> ip_configuration_query_ready(): IPv4 configuration available:
> 'address, gateway, dns, mtu'
> <debug> [1485259217.322293] [mm-bearer-mbim.c:325]
> ip_configuration_query_ready():   IP addresses (1)
> <debug> [1485259217.322813] [mm-bearer-mbim.c:329]
> ip_configuration_query_ready():     IP [0]: '25.32.16.100/29'
> <debug> [1485259217.322992] [mm-bearer-mbim.c:338]
> ip_configuration_query_ready():   Gateway: '25.32.16.101'
> <debug> [1485259217.323082] [mm-bearer-mbim.c:346]
> ip_configuration_query_ready():   DNS addresses (2)
> <debug> [1485259217.323212] [mm-bearer-mbim.c:351]
> ip_configuration_query_ready():     DNS [0]: '68.28.104.132'
> <debug> [1485259217.323363] [mm-bearer-mbim.c:351]
> ip_configuration_query_ready():     DNS [1]: '68.28.105.132'
> <debug> [1485259217.323455] [mm-bearer-mbim.c:359]
> ip_configuration_query_ready():   MTU: '1500'
> <debug> [1485259217.323524] [mm-bearer-mbim.c:365]
> ip_configuration_query_ready(): IPv6 configuration available: 'none'
> <debug> [1485259217.323961] [mm-port.c:94] mm_port_set_connected():
> (wwan0): port now connected
>
> It all looks good here.
>
> Didn't you get the wwan network interface configured with those settings?

Note that the backport of 61f602d84a60 ("cdc_ncm: workaround for EM7455
"silent" data interface") went into v4.4.16.  So v4.4.14 might just be
slightly too old to work with the MC7455.

The current 4.4 stable release is v4.4.44. And as Greg so mildly puts
it: "All users of the 4.4 kernel series must upgrade.".

Worth trying. At least if the problem is that the MC7455 cannot send or
receive any IP packets after successfully connecting.



Bjørn