Hi
I am using RC7620-1 module in Linux OS.
Send AT command AT!SCACT=1,1 and ping 8.8.8.8
Ping 8.8.8.8 for a period of time, the ICMP packet will be smaller than the 8.8.8.8 packet about seq=119.
Query AT!SCACT? → 1,0
Why does SCACT deactivate after 120s?
Could anyone please help clarify this issue?
Many thanks.
No problem is found on my side:
owner@ubuntu:~$ sudo chmod 777 /sys/class/net/wwan0/qmi/raw_ip
owner@ubuntu:~$ sudo echo Y > /sys/class/net/wwan0/qmi/raw_ip
owner@ubuntu:~$ sudo qmicli --device=/dev/cdc-wdm0 --wds-noop --client-no-release-cid
[/dev/cdc-wdm0] Client ID not released:
Service: 'wds'
CID: '3'
at!gstatus?
!GSTATUS:
Current Time: 139 Temperature: 30
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: NOT REGISTERED IMS mode: Normal
IMS Srv State: NO SMS,NO VoIP
LTE band: B7 LTE bw: 20 MHz
LTE Rx chan: 2850 LTE Tx chan: 20850
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Connected
PCC RxM RSSI: -67 RSRP (dBm): -99
PCC RxD RSSI: -91 RSRP (dBm): -130
Tx Power: -- TAC: 0003 (3)
RSRQ (dB): -12 Cell ID: 04BB6102 (79388930)
SINR (dB): 9.8
OK
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: RC7620
Revision: SWI9X07H_00.08.24.02 f90cbd jenkins 2022/03/21 03:47:54
IMEI: 353634110012345
IMEI SV: 19
FSN: 7Q947200012345
+GCAP: +CGSM
OK
at!scact=1,1
OK
owner@ubuntu:~$ sudo udhcpc -i wwan0
udhcpc: started, v1.27.2
udhcpc: sending discover
udhcpc: sending select for 10.186.232.61
udhcpc: lease of 10.186.232.61 obtained, lease time 7200
owner@ubuntu:~$ ping 8.8.8.8 -I wwan0
PING 8.8.8.8 (8.8.8.8) from 10.186.232.61 wwan0: 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=59 time=105 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=59 time=41.5 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=59 time=91.3 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=59 time=49.5 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=59 time=87.5 ms
64 bytes from 8.8.8.8: icmp_seq=6 ttl=59 time=69.3 ms
64 bytes from 8.8.8.8: icmp_seq=7 ttl=59 time=73.1 ms
64 bytes from 8.8.8.8: icmp_seq=8 ttl=59 time=52.4 ms
64 bytes from 8.8.8.8: icmp_seq=9 ttl=59 time=61.9 ms
64 bytes from 8.8.8.8: icmp_seq=10 ttl=59 time=59.2 ms
64 bytes from 8.8.8.8: icmp_seq=11 ttl=59 time=56.3 ms
64 bytes from 8.8.8.8: icmp_seq=12 ttl=59 time=58.8 ms
64 bytes from 8.8.8.8: icmp_seq=13 ttl=59 time=55.2 ms
64 bytes from 8.8.8.8: icmp_seq=14 ttl=59 time=58.6 ms
64 bytes from 8.8.8.8: icmp_seq=15 ttl=59 time=48.5 ms
64 bytes from 8.8.8.8: icmp_seq=16 ttl=59 time=44.1 ms
64 bytes from 8.8.8.8: icmp_seq=17 ttl=59 time=45.2 ms
64 bytes from 8.8.8.8: icmp_seq=18 ttl=59 time=42.6 ms
64 bytes from 8.8.8.8: icmp_seq=19 ttl=59 time=39.4 ms
64 bytes from 8.8.8.8: icmp_seq=20 ttl=59 time=51.6 ms
64 bytes from 8.8.8.8: icmp_seq=21 ttl=59 time=37.4 ms
64 bytes from 8.8.8.8: icmp_seq=22 ttl=59 time=51.4 ms
64 bytes from 8.8.8.8: icmp_seq=23 ttl=59 time=33.2 ms
64 bytes from 8.8.8.8: icmp_seq=24 ttl=59 time=61.9 ms
64 bytes from 8.8.8.8: icmp_seq=25 ttl=59 time=115 ms
64 bytes from 8.8.8.8: icmp_seq=26 ttl=59 time=58.1 ms
64 bytes from 8.8.8.8: icmp_seq=27 ttl=59 time=112 ms
64 bytes from 8.8.8.8: icmp_seq=28 ttl=59 time=66.9 ms
64 bytes from 8.8.8.8: icmp_seq=29 ttl=59 time=100 ms
64 bytes from 8.8.8.8: icmp_seq=30 ttl=59 time=75.2 ms
64 bytes from 8.8.8.8: icmp_seq=31 ttl=59 time=106 ms
64 bytes from 8.8.8.8: icmp_seq=32 ttl=59 time=46.7 ms
64 bytes from 8.8.8.8: icmp_seq=33 ttl=59 time=86.7 ms
64 bytes from 8.8.8.8: icmp_seq=34 ttl=59 time=46.1 ms
64 bytes from 8.8.8.8: icmp_seq=35 ttl=59 time=79.8 ms
64 bytes from 8.8.8.8: icmp_seq=36 ttl=59 time=37.8 ms
64 bytes from 8.8.8.8: icmp_seq=37 ttl=59 time=75.8 ms
64 bytes from 8.8.8.8: icmp_seq=38 ttl=59 time=34.2 ms
64 bytes from 8.8.8.8: icmp_seq=39 ttl=59 time=73.2 ms
64 bytes from 8.8.8.8: icmp_seq=40 ttl=59 time=109 ms
64 bytes from 8.8.8.8: icmp_seq=41 ttl=59 time=68.5 ms
64 bytes from 8.8.8.8: icmp_seq=42 ttl=59 time=79.6 ms
64 bytes from 8.8.8.8: icmp_seq=43 ttl=59 time=79.3 ms
64 bytes from 8.8.8.8: icmp_seq=44 ttl=59 time=72.6 ms
64 bytes from 8.8.8.8: icmp_seq=45 ttl=59 time=66.2 ms
64 bytes from 8.8.8.8: icmp_seq=46 ttl=59 time=58.8 ms
64 bytes from 8.8.8.8: icmp_seq=47 ttl=59 time=88.6 ms
64 bytes from 8.8.8.8: icmp_seq=48 ttl=59 time=39.9 ms
64 bytes from 8.8.8.8: icmp_seq=49 ttl=59 time=54.8 ms
64 bytes from 8.8.8.8: icmp_seq=50 ttl=59 time=44.7 ms
64 bytes from 8.8.8.8: icmp_seq=51 ttl=59 time=81.5 ms
64 bytes from 8.8.8.8: icmp_seq=52 ttl=59 time=39.2 ms
64 bytes from 8.8.8.8: icmp_seq=53 ttl=59 time=76.3 ms
64 bytes from 8.8.8.8: icmp_seq=54 ttl=59 time=42.6 ms
64 bytes from 8.8.8.8: icmp_seq=55 ttl=59 time=80.0 ms
64 bytes from 8.8.8.8: icmp_seq=56 ttl=59 time=102 ms
64 bytes from 8.8.8.8: icmp_seq=57 ttl=59 time=75.1 ms
64 bytes from 8.8.8.8: icmp_seq=58 ttl=59 time=120 ms
64 bytes from 8.8.8.8: icmp_seq=59 ttl=59 time=63.0 ms
64 bytes from 8.8.8.8: icmp_seq=60 ttl=59 time=100 ms
64 bytes from 8.8.8.8: icmp_seq=61 ttl=59 time=60.8 ms
64 bytes from 8.8.8.8: icmp_seq=62 ttl=59 time=27.3 ms
64 bytes from 8.8.8.8: icmp_seq=63 ttl=59 time=64.6 ms
64 bytes from 8.8.8.8: icmp_seq=64 ttl=59 time=93.8 ms
64 bytes from 8.8.8.8: icmp_seq=65 ttl=59 time=51.8 ms
64 bytes from 8.8.8.8: icmp_seq=66 ttl=59 time=96.2 ms
64 bytes from 8.8.8.8: icmp_seq=67 ttl=59 time=53.2 ms
64 bytes from 8.8.8.8: icmp_seq=68 ttl=59 time=85.8 ms
64 bytes from 8.8.8.8: icmp_seq=69 ttl=59 time=46.0 ms
64 bytes from 8.8.8.8: icmp_seq=70 ttl=59 time=126 ms
64 bytes from 8.8.8.8: icmp_seq=71 ttl=59 time=58.0 ms
64 bytes from 8.8.8.8: icmp_seq=72 ttl=59 time=42.9 ms
64 bytes from 8.8.8.8: icmp_seq=73 ttl=59 time=68.0 ms
64 bytes from 8.8.8.8: icmp_seq=74 ttl=59 time=27.7 ms
64 bytes from 8.8.8.8: icmp_seq=75 ttl=59 time=73.6 ms
64 bytes from 8.8.8.8: icmp_seq=76 ttl=59 time=34.4 ms
64 bytes from 8.8.8.8: icmp_seq=77 ttl=59 time=33.4 ms
64 bytes from 8.8.8.8: icmp_seq=78 ttl=59 time=88.7 ms
64 bytes from 8.8.8.8: icmp_seq=79 ttl=59 time=34.8 ms
64 bytes from 8.8.8.8: icmp_seq=80 ttl=59 time=95.9 ms
64 bytes from 8.8.8.8: icmp_seq=81 ttl=59 time=57.7 ms
64 bytes from 8.8.8.8: icmp_seq=82 ttl=59 time=31.1 ms
64 bytes from 8.8.8.8: icmp_seq=83 ttl=59 time=38.0 ms
64 bytes from 8.8.8.8: icmp_seq=84 ttl=59 time=53.0 ms
64 bytes from 8.8.8.8: icmp_seq=85 ttl=59 time=55.0 ms
64 bytes from 8.8.8.8: icmp_seq=86 ttl=59 time=64.7 ms
64 bytes from 8.8.8.8: icmp_seq=87 ttl=59 time=95.5 ms
64 bytes from 8.8.8.8: icmp_seq=88 ttl=59 time=71.9 ms
64 bytes from 8.8.8.8: icmp_seq=89 ttl=59 time=33.8 ms
64 bytes from 8.8.8.8: icmp_seq=90 ttl=59 time=171 ms
64 bytes from 8.8.8.8: icmp_seq=91 ttl=59 time=29.3 ms
64 bytes from 8.8.8.8: icmp_seq=92 ttl=59 time=28.5 ms
64 bytes from 8.8.8.8: icmp_seq=93 ttl=59 time=119 ms
64 bytes from 8.8.8.8: icmp_seq=94 ttl=59 time=59.9 ms
64 bytes from 8.8.8.8: icmp_seq=95 ttl=59 time=20.5 ms
64 bytes from 8.8.8.8: icmp_seq=96 ttl=59 time=58.6 ms
64 bytes from 8.8.8.8: icmp_seq=97 ttl=59 time=70.7 ms
64 bytes from 8.8.8.8: icmp_seq=98 ttl=59 time=49.3 ms
64 bytes from 8.8.8.8: icmp_seq=99 ttl=59 time=71.2 ms
64 bytes from 8.8.8.8: icmp_seq=100 ttl=59 time=91.2 ms
64 bytes from 8.8.8.8: icmp_seq=101 ttl=59 time=32.7 ms
64 bytes from 8.8.8.8: icmp_seq=102 ttl=59 time=59.5 ms
64 bytes from 8.8.8.8: icmp_seq=103 ttl=59 time=69.0 ms
64 bytes from 8.8.8.8: icmp_seq=104 ttl=59 time=99.0 ms
64 bytes from 8.8.8.8: icmp_seq=105 ttl=59 time=56.3 ms
64 bytes from 8.8.8.8: icmp_seq=106 ttl=59 time=42.1 ms
64 bytes from 8.8.8.8: icmp_seq=107 ttl=59 time=47.8 ms
64 bytes from 8.8.8.8: icmp_seq=108 ttl=59 time=92.9 ms
64 bytes from 8.8.8.8: icmp_seq=109 ttl=59 time=43.5 ms
64 bytes from 8.8.8.8: icmp_seq=110 ttl=59 time=77.8 ms
64 bytes from 8.8.8.8: icmp_seq=111 ttl=59 time=24.7 ms
64 bytes from 8.8.8.8: icmp_seq=112 ttl=59 time=85.7 ms
64 bytes from 8.8.8.8: icmp_seq=113 ttl=59 time=53.5 ms
64 bytes from 8.8.8.8: icmp_seq=114 ttl=59 time=50.2 ms
64 bytes from 8.8.8.8: icmp_seq=115 ttl=59 time=41.5 ms
64 bytes from 8.8.8.8: icmp_seq=116 ttl=59 time=58.0 ms
64 bytes from 8.8.8.8: icmp_seq=117 ttl=59 time=70.0 ms
64 bytes from 8.8.8.8: icmp_seq=118 ttl=59 time=61.0 ms
64 bytes from 8.8.8.8: icmp_seq=119 ttl=59 time=57.9 ms
64 bytes from 8.8.8.8: icmp_seq=120 ttl=59 time=80.5 ms
64 bytes from 8.8.8.8: icmp_seq=121 ttl=59 time=33.6 ms
64 bytes from 8.8.8.8: icmp_seq=122 ttl=59 time=45.9 ms
64 bytes from 8.8.8.8: icmp_seq=123 ttl=59 time=27.5 ms
64 bytes from 8.8.8.8: icmp_seq=124 ttl=59 time=56.5 ms
64 bytes from 8.8.8.8: icmp_seq=125 ttl=59 time=32.1 ms
64 bytes from 8.8.8.8: icmp_seq=126 ttl=59 time=61.9 ms
64 bytes from 8.8.8.8: icmp_seq=127 ttl=59 time=75.1 ms
64 bytes from 8.8.8.8: icmp_seq=128 ttl=59 time=40.8 ms
64 bytes from 8.8.8.8: icmp_seq=129 ttl=59 time=110 ms
64 bytes from 8.8.8.8: icmp_seq=130 ttl=59 time=38.5 ms
64 bytes from 8.8.8.8: icmp_seq=131 ttl=59 time=74.0 ms
64 bytes from 8.8.8.8: icmp_seq=132 ttl=59 time=43.6 ms
64 bytes from 8.8.8.8: icmp_seq=133 ttl=59 time=89.5 ms
64 bytes from 8.8.8.8: icmp_seq=134 ttl=59 time=43.6 ms
64 bytes from 8.8.8.8: icmp_seq=135 ttl=59 time=87.2 ms
64 bytes from 8.8.8.8: icmp_seq=136 ttl=59 time=41.5 ms
64 bytes from 8.8.8.8: icmp_seq=137 ttl=59 time=74.1 ms
64 bytes from 8.8.8.8: icmp_seq=138 ttl=59 time=47.2 ms
64 bytes from 8.8.8.8: icmp_seq=139 ttl=59 time=68.5 ms
64 bytes from 8.8.8.8: icmp_seq=140 ttl=59 time=34.7 ms
^C
--- 8.8.8.8 ping statistics ---
140 packets transmitted, 140 received, 0% packet loss, time 139275ms
rtt min/avg/max/mdev = 20.501/63.613/171.564/25.243 ms
Thank you for your reply.
Maybe it’s my carrier network problem.
I will test again
Hi
I use AT+CGCONTRDP to find IP address and Gateway to add IP, Gatewat and netmask manually.
But we found that the IP address and Gateway are the same.
When I use DHCP client tool, the IP address and Gateway are different.
Is this any problem?
i remember AT+CGPADDR=1 should be the same as the one returned in ifconfig