Hi everyone,
I’m currently working on setting up Azure communication using the latest SLM version for PPP (Point-to-Point Protocol) support. Here’s the configuration I’m working with:
- Host MCU: STM32U585 running FreeRTOS, STM32-X-CUBE-CELLULAR, and LWIP (Lightweight IP open-source TCP/IP stack).
- Modem: NRF9160 Serial Lte Modem application (version 2.6.1) on NB-IoT network.
- Alternative Modem: Quctel modem (supports LTE network).
I have successfully established Azure communication with the Quctel modem using the STM32-X-CUBE-CELLULAR, and LWIP stack. However, I am facing challenges while trying to achieve the same with the NRF9160 modem over the NB-IoT network.
I have logs available from the Quctel modem that show successful Azure communication, but replicating this with the NRF9160 modem has been difficult.
here is the snippet from Quctel modem which showing 'Network is up with IP 10.65.175.125'
<INF> 17763 [CellularSe] client ppp_notify_phase_cb: PPP_PHASE_DEAD > <INF> 17763 [CellularSe] ppposif_client_dead > <L > 17763 [CellularSe] ppp_connect[0]: holdoff=0 > <L > 17763 [CellularSe] ppp phase changed[0]: phase=3 > <L > 18003 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80ddf44 > <L > 18003 [TCP/IP ] tcpip: dns_tmr() > <L > 18003 [TCP/IP ] dns_tmr: dns_check_entries > <L > 18003 [TCP/IP ] sys_timeout: 0x2007dde4 abs_time=19003 handler=dns_tmr arg=0x80ddf44 > <INF> 18263 [CellularSe] client ppp_notify_phase_cb: PPP_PHASE_INITIALIZE > <L > 18263 [CellularSe] pppos_connect: unit 0: connecting > <L > 18263 [CellularSe] ppp_start[0] > <L > 18263 [CellularSe] ppp phase changed[0]: phase=6 > <INF> 18763 [CellularSe] client ppp_notify_phase_cb: 6 > <L > 18763 [CellularSe] pppos_send_config[0]: out_accm=FF FF FF FF > <L > 18763 [CellularSe] ppp_send_config[0] > <L > 18763 [CellularSe] pppos_recv_config[0]: in_accm=FF FF FF FF > <L > 18763 [CellularSe] ppp_recv_config[0] > <L > 18763 [CellularSe] ppp: auth protocols: > <L > 18763 [CellularSe] PAP=0 > <L > 18763 [CellularSe] > <L > 18763 [CellularSe] pbuf_alloc(length=24) > <L > 18763 [CellularSe] pbuf_alloc(length=24) == 0x2007da3c > <L > 18763 [CellularSe] pbuf_alloc(length=0) > <L > 18763 [CellularSe] pbuf_alloc(length=0) == 0x2007d82c > <L > 18767 [CellularSe] pbuf_free(0x2007d82c) > <L > 18767 [CellularSe] pbuf_free: deallocating 0x2007d82c > <L > 18767 [CellularSe] pppos_write[0]: len=24 > <L > 18767 [CellularSe] pbuf_free(0x2007da3c) > <L > 18767 [CellularSe] pbuf_free: deallocating 0x2007da3c > <L > 18767 [CellularSe] sys_timeout: 0x2007ddd0 abs_time=24767 handler=(fsm_timeout) arg=0x2007f47c > <L > 18767 [CellularSe] ppp_start[0]: finished > <L > 18769 [PPPosifClt] pbuf_alloc(length=1) > <L > 18769 [PPPosifClt] pbuf_alloc(length=1) == 0x2007da3c > <L > 18769 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18769 [PPPosifClt] pppos_input[0]: got 1 bytes > <L > 18769 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18769 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18769 [PPPosifClt] pbuf_alloc(length=2) > <L > 18769 [PPPosifClt] pbuf_alloc(length=2) == 0x2007da3c > <L > 18769 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18769 [PPPosifClt] pppos_input[0]: got 2 bytes > <L > 18770 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18770 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18770 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18770 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18770 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18770 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18770 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18770 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18770 [PPPosifClt] pbuf_alloc(length=0) > <L > 18770 [PPPosifClt] pbuf_alloc(length=0) == 0x2007d82c > <L > 18770 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18770 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18770 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18770 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18770 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18770 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) > <L > 18770 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18770 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18771 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18771 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18771 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18771 [PPPosifClt] pbuf_alloc(length=3) > <L > 18771 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18771 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18771 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18771 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18771 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 18771 [PPPosifClt] pbuf_alloc(length=3) > <L > 18771 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 18771 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 18771 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 18771 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 18771 [PPPosifClt] > <L > 18786 [PPPosifClt] pbuf_free(0x2007d40c) > <L > 18787 [P > <INF> 19287 [PPPosifClt] client ppp_notify_phase_cb: 7 > <L > 19287 [PPPosifClt] ppp phase changed[0]: phase=9 > <INF> 19787 [PPPosifClt] client ppp_notify_phase_cb: PPP_PHASE_NETWORK > <INF> 19787 [PPPosifClt] ppposif_client_network > <L > 19787 [PPPosifClt] pbuf_alloc(length=32) > <L > 19787 [PPPosifClt] pbuf_alloc(length=32) == 0x2007d61c > <L > 19787 [PPPosifClt] pbuf_alloc(length=0) > <L > 19787 [PPPosifClt] pbuf_alloc(length=0) == 0x2007d40c > <L > 19790 [PPPosifClt] pbuf_free(0x2007d40c) > <L > 19790 [PPPosifClt] pbuf_free: deallocating 0x2007d40c > <L > 19790 [PPPosifClt] pppos_write[0]: len=32 > <L > 19790 [PPPosifClt] pbuf_free(0x2007d61c) > <L > 19790 [PPPosifClt] pbuf_free: deallocating 0x2007d61c > <L > 19790 [PPPosifClt] sys_timeout: 0x2007ddd0 abs_time=25790 handler=(fsm_timeout) arg=0x2008063c > <L > 19790 [PPPosifClt] pbuf_free(0x2007d82c) > <L > 19790 [PPPosifClt] pbuf_free: deallocating 0x2007d82c > <L > 19790 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 19790 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 19790 [PPPosifClt] pbuf_alloc(length=22) > <L > 19790 [PPPosifClt] pbuf_alloc(length=22) == 0x2007da3c > <L > 19790 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 19790 [PPPosifClt] pppos_input[0]: got 22 bytes > <L > 19790 [PPPosifClt] pbuf_alloc(length=0) > <L > 19790 [PPPosifClt] pbuf_alloc(length=0) == 0x2007d82c > <L > 19791 [PPPosifClt] pbuf_remove_header: old 0x2007d83c new 0x2007d83e (2) > <L > 19791 [PPPosifClt] pbuf_free(0x2007d82c) > <L > 19791 [PPPosifClt] pbuf_free: deallocating 0x2007d82c > <L > 19791 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 19791 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 19806 [TCP/IP ] sct calling h=dns_tmr t=803 arg=0x80ddf44 > <L > 19806 [TCP/IP ] tcpip: dns_tmr() > <L > 19806 [TCP/IP ] dns_tmr: dns_check_entries > <L > 19806 [TCP/IP ] sys_timeout: 0x2007dde4 abs_time=20003 handler=dns_tmr arg=0x80ddf44 > <L > 19807 [PPPosifClt] pbuf_alloc(length=1) > <L > 19807 [PPPosifClt] pbuf_alloc(length=1) == 0x2007da3c > <L > 19807 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 19807 [PPPosifClt] pppos_input[0]: got 1 bytes > <L > 19807 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 19807 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 19807 [PPPosifClt] pbuf_alloc(length=2) > <L > 19807 [PPPosifClt] pbuf_alloc(length=2) == 0x2007da3c > <L > 19807 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 19807 [PPPosifClt] pppos_input[0]: got 2 bytes > <L > 19807 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 19807 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 19807 [PPPosifClt] pbuf_alloc(length=3) > <L > 19807 [PPPosifClt] pbuf_alloc(length=3) == 0x2007da3c > <L > 19807 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 19807 [PPPosifClt] pppos_input[0]: got 3 bytes > <L > 19807 [PPPosifClt] pbuf_alloc(length=0) > <L > 19807 [PPPosifClt] pbuf_alloc(length=0) == 0x2007d82c > <L > 19807 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 19808 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 19808 [PPPosifClt] pbuf_alloc(length=4) > <L > 19808 [PPPosifClt] pbuf_alloc(length=4) == 0x2007da3c > <L > 19808 [PPPosifClt] tcpip_inpkt: PACKET 0x2007da3c/0x2004475c > <L > 19808 [PPPosifClt] pppos_input[0]: got 4 bytes > <L > 19808 [PPPosifClt] pbuf_remove_header: old 0x2007d83c new 0x2007d83e (2) > <L > 19808 [PPPosifClt] pbuf_alloc(length=14) > <L > 19808 [PPPosifClt] pbuf_alloc(length=14) == 0x2007d61c > <L > 19808 [PPPosifClt] pbuf_alloc(length=0) > <L > 19808 [PPPosifClt] pbuf_alloc(length=0) == 0x2007d40c > <L > 19809 [PPPosifClt] pbuf_free(0x2007d40c) > <L > 19809 [PPPosifClt] pbuf_free: deallocating 0x2007d40c > <L > 19809 [PPPosifClt] pppos_write[0]: len=14 > <L > 19810 [PPPosifClt] pbuf_free(0x2007d61c) > <L > 19810 [PPPosifClt] pbuf_free: deallocating 0x2007d61c > <L > 19810 [PPPosifClt] pbuf_free(0x2007d82c) > <L > 19810 [PPPosifClt] pbuf_free: dealloc > <L > 19813 [PPPosifClt] pbuf_free(0x2007d40c) > <INF> 20323 [PPPosifClt] client ppp_notify_phase_cb: PPP_PHASE_RUNNING > <INF> 20323 [PPPosifClt] CST: CST_notif_callback (Data Cache event=0) > <INF> 20323 [PPPosifClt] CST: CST_send_message: data cache 0 > <L > 20323 [PPPosifClt] pbuf_free(0x2007d82c) > <L > 20323 [PPPosifClt] pbuf_free: deallocating 0x2007d82c > <L > 20323 [PPPosifClt] pbuf_free(0x2007da3c) > <L > 20323 [PPPosifClt] pbuf_free: deallocating 0x2007da3c > <L > 20323 [TCP/IP ] sct calling h=dns_tmr t=320 arg=0x80ddf44 > <L > 20323 [TCP/IP ] tcpip: dns_tmr() > <L > 20323 [TCP/IP ] dns_tmr: dns_check_entries > <L > 20323 [TCP/IP ] sys_timeout: 0x2007dde4 abs_time=21003 handler=dns_tmr arg=0x80ddf44 > <INF> 20323 [CellularSe] CST: CST_notif_callback (Data Cache event=0) > <INF> 20323 [CellularSe] CST: CST_send_message: data cache 0 > <INF> 20323 [CellularSe] CST: AUTOM TASK: CST_PPP_CONFIG_ON_GOING_STATE - PPP_OPENED_EVENT > <INF> 20323 [CellularSe] CST: New State: MODEM_DATA_READY_STATE > <INF> 20323 [CellularSe] CST: modem state : CA_MODEM_STATE_DATAREADY > <INF> 20323 [CellularSe] CST: CST_notif_callback (Data Cache event=0) > <INF> 20323 [CellularSe] CST: CST_send_message: data cache 0 > <INF> 20323 [CellularSe] CST: CST_send_message: NO_EVENT > <INF> 20323 [CellularSe] CST: CST_notif_callback (Data Cache event=2) > <INF> 20323 [CellularSe] CellularApp: Modem ready to transmit data > <L > 20324 [CellularSe] sys_timeout: 0x2007ddd0 abs_time=24086 handler=sntp_request arg=0 > <INF> 20324 [CellularSe] CST: CST_notif_callback (Data Cache event=0) > <INF> 20324 [CellularSe] CST: CST_send_message: data cache 0 > <INF> 20324 [CellularSe] CST: CST_notif_callback (Data Cache event=1) > <INF> 20324 [CellularSe] CST: CST_send_message: data cache 1 > <INF> 20324 [CellularSe] Network is up with IP 10.65.175.125 > <INF> 20324 [CellularSe] CST: rt_state_ppp = DC_SERVICE_UNAVAIL. Nothing to do > <INF> 20324 [CellularSe] CST: autom_event = no event > <INF> 20324 [CellularSe] CST: rt_state_ppp = DC_SERVICE_UNAVAIL. Nothing to do > <INF> 20324 [CellularSe] CST: autom_event = no event > <INF> 20324 [CellularSe] CST: autom_event = no event > <INF> 20324 [CellularSe] CST: rt_state_ppp = DC_SERVICE_UNAVAIL. Nothing to do > <INF> 20324 [CellularSe] CST: autom_event = no event > <INF> 20324 [CellularSe] CST: autom_event = no event
the same setup with the NRF9160 modem, I made the necessary changes for AT commands and added the supported AT commands in the STM32U585 X-CUBE-CELLULAR driver.
While network registration completes successfully on both modems.
Using the NRF9160 as a modem for STM32U585, the PPP from the LWIP stack fails to obtain an IP address for the STM32U585 host when attempting internet connectivity
here is the snippet of logs when PPP starts on HOST STM32U585<INF> 70841 [CellularSe] client ppp_notify_phase_cb: PPP_PHASE_DEAD
>
<INF> 70841 [CellularSe] ppposif_client_dead
>
<L > 70841 [CellularSe] ppp_connect[0]: holdoff=0
>
<L > 70841 [CellularSe] ppp phase changed[0]: phase=3
>
<L > 71012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 71012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 71012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 71012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=72012 handler=dns_tmr arg=0x80e5ebc
>
<INF> 71341 [CellularSe] client ppp_notify_phase_cb: PPP_PHASE_INITIALIZE
>
<L > 71341 [CellularSe] pppos_connect: unit 0: connecting
>
<L > 71341 [CellularSe] ppp_start[0]
>
<L > 71341 [CellularSe] ppp phase changed[0]: phase=6
>
<INF> 71841 [CellularSe] client ppp_notify_phase_cb: 6
>
<L > 71841 [CellularSe] pppos_send_config[0]: out_accm=FF FF FF FF
>
<L > 71841 [CellularSe] ppp_send_config[0]
>
<L > 71841 [CellularSe] pppos_recv_config[0]: in_accm=FF FF FF FF
>
<L > 71841 [CellularSe] ppp_recv_config[0]
>
<L > 71841 [CellularSe] ppp: auth protocols:
>
<L > 71841 [CellularSe] PAP=0
>
<L > 71841 [CellularSe]
>
<L > 71841 [CellularSe] pbuf_alloc(length=24)
>
<L > 71841 [CellularSe] pbuf_alloc(length=24) == 0x200831b0
>
<L > 71841 [CellularSe] pbuf_alloc(length=0)
>
<L > 71841 [CellularSe] pbuf_alloc(length=0) == 0x20082fa0
>
<L > 71845 [CellularSe] pbuf_free(0x20082fa0)
>
<L > 71845 [CellularSe] pbuf_free: deallocating 0x20082fa0
>
<L > 71845 [CellularSe] pppos_write[0]: len=24
>
<L > 71845 [CellularSe] pbuf_free(0x200831b0)
>
<L > 71845 [CellularSe] pbuf_free: deallocating 0x200831b0
>
<L > 71845 [CellularSe] sys_timeout: 0x20083544 abs_time=77845 handler=(fsm_timeout) arg=0x20084bf0
>
<L > 71845 [CellularSe] ppp_start[0]: finished
>
<INF> 71862 [CellularSe] CST: CST_notif_callback (Data Cache event=2)
>
<INF> 71862 [CellularSe] CST: CST_notif_callback (Data Cache event=0)
>
<INF> 71863 [CellularSe] CST: CST_send_message: data cache 0
>
<INF> 71863 [CellularSe] CST: CST_notif_callback (Data Cache event=1)
>
<INF> 71863 [CellularSe] CST: CST_send_message: data cache 1
>
<INF> 71863 [CellularSe] CST: New State: CST_PPP_CONFIG_ON_GOING_STATE
>
<INF> 71863 [CellularSe] CST: rt_state_ppp = DC_SERVICE_UNAVAIL. Nothing to do
>
<INF> 71863 [CellularSe] CST: autom_event = no event
>
<INF> 71863 [CellularSe] CST: autom_event = no event
>
<L > 72012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 72012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 72012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 72012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=73012 handler=dns_tmr arg=0x80e5ebc
>
<L > 73012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 73012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 73012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 73012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=74012 handler=dns_tmr arg=0x80e5ebc
>
<L > 74012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 74012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 74012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 74012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=75012 handler=dns_tmr arg=0x80e5ebc
>
<L > 75012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 75012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 75012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 75012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=76012 handler=dns_tmr arg=0x80e5ebc
>
<L > 76012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 76012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 76012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 76012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=77012 handler=dns_tmr arg=0x80e5ebc
>
<L > 77012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 77012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 77012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 77012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=78012 handler=dns_tmr arg=0x80e5ebc
>
<L > 77845 [TCP/IP ] sct calling h=(fsm_timeout) t=0 arg=0x20084bf0
>
<L > 77845 [TCP/IP ] pbuf_alloc(length=24)
>
<L > 77845 [TCP/IP ] pbuf_alloc(length=24) == 0x200831b0
>
<L > 77845 [TCP/IP ] pbuf_alloc(length=0)
>
<L > 77845 [TCP/IP ] pbuf_alloc(length=0) == 0x20082fa0
>
<L > 77849 [TCP/IP ] pbuf_free(0x20082fa0)
>
<L > 77849 [TCP/IP ] pbuf_free: deallocating 0x20082fa0
>
<L > 77849 [TCP/IP ] pppos_write[0]: len=24
>
<L > 77849 [TCP/IP ] pbuf_free(0x200831b0)
>
<L > 77849 [TCP/IP ] pbuf_free: deallocating 0x200831b0
>
<L > 77849 [TCP/IP ] sys_timeout: 0x20083544 abs_time=83849 handler=(fsm_timeout) arg=0x20084bf0
>
<L > 78012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 78012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 78012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 78012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=79012 handler=dns_tmr arg=0x80e5ebc
>
<L > 79012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 79012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 79012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 79012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=80012 handler=dns_tmr arg=0x80e5ebc
>
<L > 80012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 80012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 80012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 80012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=81012 handler=dns_tmr arg=0x80e5ebc
>
<L > 81012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 81012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 81012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 81012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=82012 handler=dns_tmr arg=0x80e5ebc
>
<L > 82012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 82012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 82012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 82012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=83012 handler=dns_tmr arg=0x80e5ebc
>
<L > 83012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 83012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 83012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 83012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=84012 handler=dns_tmr arg=0x80e5ebc
>
<L > 83849 [TCP/IP ] sct calling h=(fsm_timeout) t=0 arg=0x20084bf0
>
<L > 83849 [TCP/IP ] pbuf_alloc(length=24)
>
<L > 83849 [TCP/IP ] pbuf_alloc(length=24) == 0x200831b0
>
<L > 83849 [TCP/IP ] pbuf_alloc(length=0)
>
<L > 83849 [TCP/IP ] pbuf_alloc(length=0) == 0x20082fa0
>
<L > 83853 [TCP/IP ] pbuf_free(0x20082fa0)
>
<L > 83853 [TCP/IP ] pbuf_free: deallocating 0x20082fa0
>
<L > 83853 [TCP/IP ] pppos_write[0]: len=24
>
<L > 83853 [TCP/IP ] pbuf_free(0x200831b0)
>
<L > 83853 [TCP/IP ] pbuf_free: deallocating 0x200831b0
>
<L > 83853 [TCP/IP ] sys_timeout: 0x20083544 abs_time=89853 handler=(fsm_timeout) arg=0x20084bf0
>
<L > 84012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 84012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 84012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 84012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=85012 handler=dns_tmr arg=0x80e5ebc
>
<L > 85012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 85012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 85012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 85012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=86012 handler=dns_tmr arg=0x80e5ebc
>
<L > 85841 [Tmr Svc ] ppp_close[0]: kill_link -> lcp_close
>
<L > 85841 [Tmr Svc ] ppp phase changed[0]: phase=11
>
<L > 86012 [TCP/IP ] sct calling h=dns_tmr t=0 arg=0x80e5ebc
>
<L > 86012 [TCP/IP ] tcpip: dns_tmr()
>
<L > 86012 [TCP/IP ] dns_tmr: dns_check_entries
>
<L > 86012 [TCP/IP ] sys_timeout: 0x20083558 abs_time=87012 handler=dns_tmr arg=0x80e5ebc
>
<INF> 86341 [Tmr Svc ] client ppp_notify_phase_cb: 11
>
<L > 86341 [Tmr Svc ] pbuf_alloc(length=20)
>
<L > 86341 [Tmr Svc ] pbuf_alloc(length=20) == 0x200831b0
>
<L > 86341 [Tmr Svc ] pbuf_alloc(length=0)
>
<L > 86341 [Tmr Svc ] pbuf_alloc(length=0) == 0x20082fa0
>
<L > 86343 [Tmr Svc ] pbuf_free(0x20082fa0)
>
<L > 86343 [Tmr Svc ] pbuf_free: deallocating 0x20082fa0
>
<L > 86343 [Tmr Svc ] pppos_write[0]: len=20
>
<L > 86343 [Tmr Svc ] pbuf_free(0x200831b0)
>
<L > 86343 [Tmr Svc ] pbuf_free: deallocating 0x200831b0
>
<L > 86343 [Tmr Svc ] sys_timeout: 0x20083544 abs_time=92343 handler=(fsm_timeout) arg=0x20084bf0
>
<INF> 86343 [Tmr Svc ] ppposif_config_timeout_timer_callback
>
<INF> 86344 [Tmr Svc ] CST: CST_notif_callback (Data Cache event=0)
>
<INF> 86344 [Tmr Svc ] CST: CST_send_message: data cache 0
>
<INF> 86344 [CellularSe] CST: CST_notif_callback (Data Cache event=0)
>
<INF> 86344 [CellularSe] CST: CST_send_message: data cache 0
>
<INF> 86344 [CellularSe] CST: AUTOM TASK: CST_PPP_CONFIG_ON_GOING_STATE - PPP_CLOSED_EVENT
Can anyone provide guidance or share their experience in configuring the NRF9160 modem for Azure communication over the NB-IoT network? Any advice, configuration tips, or insights would be greatly appreciated.
Thank you!
