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    LTE - Modem Works But Cannot Ping

    Cellular Modems
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    • derrick0799D
      derrick0799 @tom
      last edited by

      @tom said in LTE - Modem Works But Cannot Ping:

      echo -ne "AT+CGDCONT?\r" | busybox microcom -t 1000 /dev/ttyUSB2

      yocto:~$ echo -ne "AT+CGDCONT?\r" | busybox microcom -t 1000 /dev/ttyUSB2
      AT+CGDCONT?
      +CGDCONT: 1,"IP","vzwinternet","0.0.0.0",0,0,0,0
      +CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
      +CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1

      OK

      tomT 1 Reply Last reply Reply Quote 0
      • tomT
        tom admin
        last edited by

        @derrick0799 Do you have WiFi connected? If so, try disabling it with ifconfig wlan0 down and seeing if you can then ping.

        Also, can I see the output of route -n?

        Same for you @vmassague something to try.

        derrick0799D 1 Reply Last reply Reply Quote 0
        • tomT
          tom admin @derrick0799
          last edited by

          @derrick0799 Looks like APN is setting correctly so that's good

          1 Reply Last reply Reply Quote 0
          • derrick0799D
            derrick0799 @tom
            last edited by

            @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
            / #

            1 Reply Last reply Reply Quote 0
            • tomT
              tom admin
              last edited by

              @derrick0799 What does ifconfig show?

              derrick0799D 1 Reply Last reply Reply Quote 0
              • derrick0799D
                derrick0799 @tom
                last edited by

                @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)

                / #

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                • tomT
                  tom admin
                  last edited by

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

                  1 Reply Last reply Reply Quote 0
                  • tomT
                    tom admin
                    last edited by

                    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)
                    derrick0799D 2 Replies Last reply Reply Quote 0
                    • derrick0799D
                      derrick0799 @tom
                      last edited by

                      @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.

                      1 Reply Last reply Reply Quote 0
                      • derrick0799D
                        derrick0799 @tom
                        last edited by

                        @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

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                        • tomT
                          tom admin
                          last edited by

                          @derrick0799 Great to hear!

                          1 Reply Last reply Reply Quote 0
                          • vmassagueV
                            vmassague
                            last edited by

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

                            tomT 1 Reply Last reply Reply Quote 0
                            • tomT
                              tom admin @vmassague
                              last edited by

                              @vmassague Awesome!

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