Impossível pingar google.com - trazendo suporte a modem 3g em intel Edison

Question

Estou tentando trazer o modem USB 3g (Huawei E8231) para a Intel Edison.

Em Edison:

Depois de ativar o driver cdc_ether através do yocto build, vejo que um dispositivo ethernet é criado quando eu insiro o dongle.

Registro do kernel:

[ 2562.441551] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 2562.442638] scsi1 : usb-storage 1-1:1.0
[ 2563.169095] usb 1-1: USB disconnect, device number 4
[ 2563.537339] usb 1-1: new high-speed USB device number 5 using dwc3-host
[ 2563.559524] usb 1-1: New USB device found, idVendor=12d1, idProduct=14db
[ 2563.559554] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2563.559576] usb 1-1: Product: HUAWEI Mobile
[ 2563.559595] usb 1-1: Manufacturer: HUAWEI
[ 2563.645936] cdc_ether 1-1:1.0 eth0: register 'cdc_ether' at usb-dwc3-host.2-1, CDC Ethernet Device, 00:1e:10:1f:00:00
[ 2563.730525] systemd-udevd[330]: renamed network interface eth0 to enp0s17u1

Então eu liguei enp0s17u1

ifconfig enp0s17u1 up

# ifconfig
enp0s17u1 Link encap:Ethernet  HWaddr 00:1e:10:1f:00:00  
          inet6 addr: fe80::21e:10ff:fe1f:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:277 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:129344 (126.3 KiB)  TX bytes:378 (378.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:12160 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12160 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:923616 (901.9 KiB)  TX bytes:923616 (901.9 KiB)

usb0      Link encap:Ethernet  HWaddr 02:00:86:07:72:b2  
          inet addr:192.168.2.15  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

A interface parece ser up , mas não consigo fazer ping em nenhum site.

# ping google.com
ping: bad address 'google.com'

Tentei fazer o ping do endereço IP. Não há sorte com isso também.

~# ping 216.58.200.174
PING 216.58.200.174 (216.58.200.174): 56 data bytes
ping: sendto: Network is unreachable

Basicamente Como posso depurar isso? É um problema do servidor dns? Eu não tenho ideia. Eu estou tentando descobrir isso.

No meu laptop (Ubuntu):

Eu tentei os mesmos passos no meu PC Ubuntu. Aqui está o log do kernel depois que eu insiro o modem e faço usb_modemswitch

[95623.780650] usb 1-3: SerialNumber: FFFFFFFFFFFFFFFF
[95623.782995] usb-storage 1-3:1.0: USB Mass Storage device detected
[95623.783738] scsi host8: usb-storage 1-3:1.0
[95624.792497] scsi 8:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[95624.862764] sr 8:0:0:0: [sr0] scsi-1 drive
[95624.863611] sr 8:0:0:0: Attached scsi CD-ROM sr0
[95624.863997] sr 8:0:0:0: Attached scsi generic sg1 type 5
[95631.737629] usb 1-3: USB disconnect, device number 43
[95632.103018] usb 1-3: new high-speed USB device number 44 using xhci_hcd
[95632.260716] usb 1-3: New USB device found, idVendor=12d1, idProduct=14db
[95632.260729] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[95632.260737] usb 1-3: Product: HUAWEI Mobile
[95632.260743] usb 1-3: Manufacturer: HUAWEI
[95632.345186] cdc_ether 1-3:1.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-3, CDC Ethernet Device, 00:1e:10:1f:00:00
[95632.383256] cdc_ether 1-3:1.0 enx001e101f0000: renamed from eth0
[95632.412058] IPv6: ADDRCONF(NETDEV_UP): enx001e101f0000: link is not ready
[95632.412172] cdc_ether 1-3:1.0 enx001e101f0000: kevent 12 may have been dropped
[95632.412177] cdc_ether 1-3:1.0 enx001e101f0000: kevent 12 may have been dropped
[95632.433168] IPv6: ADDRCONF(NETDEV_UP): enx001e101f0000: link is not ready
[95634.671760] IPv6: ADDRCONF(NETDEV_CHANGE): enx001e101f0000: link becomes ready

O link ethernet está pronto. Eu não tenho que fazer ifconfig enx001e101f0000 up também. Tudo acontece por padrão e eu posso usar a internet sem problemas.

Portanto, estou duvidando que algumas configurações de kernel ausentes ou uma configuração ausente estejam causando o problema.

Estou procurando dicas / dicas para depurar esse problema.

    

Answer 1

Bem, eu tive que iniciar o cliente dhcp e tudo começou a funcionar no edison.

udhcpc -i enp0s17u1