LTE - Modem Works But Cannot Ping



  • @tom after disabling wlan0,
    / # ping 8.8.8.8
    connect: Network is unreachable

    / # route -n
    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface
    172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
    / #


  • Dev Team

    @derrick0799 What does ifconfig show?



  • @tom
    / # ifconfig
    docker0 Link encap:Ethernet HWaddr 02:42:77:DF:4E:80
    inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
    inet6 addr: fe80::42:77ff:fedf:4e80/64 Scope:Link
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:0 (0.0 B) TX bytes:140 (140.0 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:609376 errors:0 dropped:0 overruns:0 frame:0
    TX packets:609376 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:65142775 (62.1 MiB) TX bytes:65142775 (62.1 MiB)

    / #


  • Dev Team

    @derrick0799 Is that the output after running voxl-modem-start.sh?


  • Dev Team

    At that point, you should be seeing something similar to:

    wwan0     Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
              inet addr:30.60.23.115  P-t-P:30.60.23.115  Mask:255.255.255.248
              UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
              RX packets:33 errors:0 dropped:0 overruns:0 frame:0
              TX packets:55 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:3214 (3.1 KiB)  TX bytes:4672 (4.5 KiB)
    


  • @tom I think my problem was that the wifi was connected when I ran the voxl-modem-start.sh
    Now that I am connect with adb everything started working when I re-ran voxl-modem-start.sh. It is pinging as it should.



  • @tom
    / # ifconfig
    docker0 Link encap:Ethernet HWaddr 02:42:77:DF:4E:80
    inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
    inet6 addr: fe80::42:77ff:fedf:4e80/64 Scope:Link
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:0 (0.0 B) TX bytes:140 (140.0 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:1472332 errors:0 dropped:0 overruns:0 frame:0
    TX packets:1472332 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:155328799 (148.1 MiB) TX bytes:155328799 (148.1 MiB)

    wwan0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
    inet addr:100.76.95.21 P-t-P:100.76.95.21 Mask:255.255.255.252
    UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
    RX packets:2 errors:0 dropped:0 overruns:0 frame:0
    TX packets:2713 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:612 (612.0 B) TX bytes:1304344 (1.2 MiB)

    / # ping 8.8.8.8
    PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
    64 bytes from 8.8.8.8: icmp_req=1 ttl=113 time=34.3 ms
    64 bytes from 8.8.8.8: icmp_req=2 ttl=113 time=35.1 ms
    64 bytes from 8.8.8.8: icmp_req=3 ttl=113 time=34.0 ms
    64 bytes from 8.8.8.8: icmp_req=4 ttl=113 time=27.1 ms
    64 bytes from 8.8.8.8: icmp_req=5 ttl=113 time=31.1 ms
    64 bytes from 8.8.8.8: icmp_req=6 ttl=113 time=36.5 ms
    64 bytes from 8.8.8.8: icmp_req=7 ttl=113 time=24.0 ms

    Thanks @Tom


  • Dev Team

    @derrick0799 Great to hear!



  • Problem solved for me too! I think it was also the wlan0 being up. Thanks a lot for the support @tom


  • Dev Team

    @vmassague Awesome!


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