<div dir="ltr"><div>Tried making dhcp client without first attempting to start qmi-network, couldn't get IP address. </div><div> </div> Is there a way, I can disable auto-connection feature by using libqmil?<div> </div><div>Regards,</div></div><div class="gmail_extra"> <div class="gmail_quote">On Sat, Sep 26, 2015 at 5:20 AM, Aleksander Morgado <<a href="mailto:aleksander@aleksander.es" target="_blank">aleksander@aleksander.es</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Fri, Sep 25, 2015 at 11:08 PM, Kavula Suresh <<a href="mailto:kavulas@gmail.com">kavulas@gmail.com</a>> wrote: > After successful integration libqmi, qmicli and qmi-network script with > Sierra MC7354 embedded platform, tested most scenarios and works great. > Thanks a lot for library and all of your support. > > There is the one case even though we generate "/usr/bin/qmi-network > /dev/cdc-wdm0 stop", still we are able to ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> some times, but > most cases it disconnects. > > > To disconnect completely with service provider, is there do we need to use > any other options? > > > Here is the sequence (1 to 9) of commands generated from terminal for your > references: > > > 1. Start Connect with Service Provider: > > # /usr/bin/qmi-network /dev/cdc-wdm0 start > Checking data format with 'qmicli -d /dev/cdc-wdm0 --wda-get-data-format > '... > Link layer protocol retrieved: 802-3 > Starting network with 'qmicli -d /dev/cdc-wdm0 --wds-start-network= > --client-no-release-cid'... > Saving state... (CID: 9) > Saving state... (PDH: 1205837040) > Network started successfully > > 2. Get IP Address: > > # /sbin/udhcpc -n -i wwan0 > udhcpc (v1.21.0) started > Sending discover... > Sending select for 100.126.36.186... > Lease of 100.126.36.186 obtained, lease time 7200 > deleting routers > route: SIOCDELRT: No such process > adding dns 198.224.148.135 > adding dns 198.224.149.135 > > 3. Test Connection status by googling: > > # ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > PING <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> (63.84.3.23): 56 data bytes > 64 bytes from <a href="http://63.84.3.23" rel="noreferrer" target="_blank">63.84.3.23</a>: seq=0 ttl=52 time=60.635 ms > 64 bytes from <a href="http://63.84.3.23" rel="noreferrer" target="_blank">63.84.3.23</a>: seq=1 ttl=52 time=337.837 ms > 64 bytes from <a href="http://63.84.3.23" rel="noreferrer" target="_blank">63.84.3.23</a>: seq=2 ttl=52 time=293.348 ms > 64 bytes from <a href="http://63.84.3.23" rel="noreferrer" target="_blank">63.84.3.23</a>: seq=3 ttl=52 time=243.975 ms > 64 bytes from <a href="http://63.84.3.23" rel="noreferrer" target="_blank">63.84.3.23</a>: seq=4 ttl=52 time=191.595 ms > > --- <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> ping statistics --- > 5 packets transmitted, 5 packets received, 0% packet loss > round-trip min/avg/max = 60.635/225.478/337.837 ms > > 4. Get network status: > > # /usr/bin/qmi-network /dev/cdc-wdm0 status > Loading previous state... > Previous CID: 9 > Previous PDH: 1205837040 > Getting status with 'qmicli -d /dev/cdc-wdm0 --wds-get-packet-service-status > --client-cid=9 --client-no-release-cid'... > Status: connected > > 5. Test Connection status by googling: > > # ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > PING <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> (63.84.3.21): 56 data bytes > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=0 ttl=52 time=66.322 ms > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=1 ttl=52 time=119.481 ms > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=2 ttl=52 time=68.153 ms > [2]+ Stopped ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > > > 6. Stop Network connection: > > # /usr/bin/qmi-network /dev/cdc-wdm0 stop > Loading previous state... > Previous CID: 9 > Previous PDH: 1205837040 > Stopping network with 'qmicli -d /dev/cdc-wdm0 --wds-stop-network=1205837040 > --client-cid=9'... > Network stopped successfully > Clearing state... > > > 7. Check is disconnected from service provider or not by googling......, no > we are not able to disconnect with service provider. > > # ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > PING <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> (63.84.3.21): 56 data bytes > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=0 ttl=52 time=57.319 ms > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=1 ttl=52 time=307.718 ms > 64 bytes from <a href="http://63.84.3.21" rel="noreferrer" target="_blank">63.84.3.21</a>: seq=2 ttl=52 time=249.398 ms > [3]+ Stopped ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > > > 8. Re-Stop Network connection: > > # /usr/bin/qmi-network /dev/cdc-wdm0 stop > Network already stopped > Clearing state... > > 9. Check once again: > > # ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> > PING <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> (63.84.3.25): 56 data bytes > 64 bytes from <a href="http://63.84.3.25" rel="noreferrer" target="_blank">63.84.3.25</a>: seq=0 ttl=52 time=60.324 ms > 64 bytes from <a href="http://63.84.3.25" rel="noreferrer" target="_blank">63.84.3.25</a>: seq=1 ttl=52 time=293.281 ms > 64 bytes from <a href="http://63.84.3.25" rel="noreferrer" target="_blank">63.84.3.25</a>: seq=2 ttl=52 time=241.974 ms > [4]+ Stopped ping <a href="http://google.com" rel="noreferrer" target="_blank">google.com</a> </div></div>What does " /usr/bin/qmicli -d /dev/cdc-wdm0 --wds-get-packet-service-status" say in that case? The only thing I can think of is that you may have auto-connect enabled in the device and it just gets re-connected itself (or never disconnected?). You can try to verify that by just ifup-ing the wwan interface and trying to call the dhcp client directly on that interface; without having qmicli/qmi-network in advance. -- Aleksander <a href="https://aleksander.es" rel="noreferrer" target="_blank">https://aleksander.es</a> </blockquote></div> </div>