Wiki source code of Cellular network connection details and tips

Version 82.2 by Xiaoling on 2023/03/23 17:38

version	line-number	content
71.4	1
	2
23.2	3	Table of Contents：
1.2	4
1.1	5	{{toc/}}
	6
23.2	7
	8
82.2	9	= 1. Enable Cellular Connection =
1.1	10
	11
15.1	12	//If your device has a Cellular module, you can see the below screenshot. enable the cellular connection here.//
	13
42.2	14	[[image:image-20220601110850-2.png]]
1.1	15
15.1	16	//Enable Cellular Connection//
	17
42.4	18
1.12	19	(((
15.1	20	//If your device doesn't have a cellular module, you will see a cellular module not detected.//
1.12	21	)))
1.1	22
24.2	23	[[image:image-20220527153544-2.png]]
1.1	24
	25
82.2	26	= 2. How to Debug if Cellular connection fails =
71.5	27
1.1	28
15.1	29	//If there is a problem with the cellular connection. Please check the below points~://
1.1	30
	31
82.2	32	== 2.1 Do you order the model with a cellular option ==
71.5	33
15.1	34
	35	//Make sure you order the model with the cellular option. Can check by command or via the Web UI.//
	36
1.2	37	(% class="box" %)
	38	(((
15.1	39	//root@dragino-1bbd90:~~# lsusb
1.2	40	Bus 001 Device 004: ID 2c7c:0125 ~-~-> This is the Cellular module
	41	Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
15.1	42	Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub//
1.2	43	)))
1.1	44
41.2	45	[[image:image-20220601110748-1.png]]
15.1	46
6.1	47
82.2	48	== 2.2 Do you input the SIM card correctly ==
71.5	49
1.1	50
15.1	51	//Below command can check if you have a SIM card inserted, or via Web UI//
	52
	53	* //Make sure to Power Off when you insert the SIM card and power on the device. The device doesn't support auto-detect SIM card on power on//
	54	* //Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.//
	55
1.2	56	(% class="box" %)
	57	(((
15.1	58	//root@dragino-1dadd8:~~# comgt -d /dev/ttyUSB3
1.2	59	SIM ready
	60	Waiting for Registration..(120 sec max)
6.1	61	Registered on Home network: "CHN-UNICOM",7
15.1	62	Signal Quality: 10,99//
1.2	63	)))
	64
15.1	65
11.1	66	(% class="wikigeneratedid" %)
27.2	67	[[image:image-20220527153804-4.png]]
14.1	68
15.1	69
14.1	70	(% class="wikigeneratedid" %)
71.4	71	//(% style="color:red" %)Note:(%%)(% style="color:red" %) If the icon is missing some information, like SIM, Network, or Signal, which may be due to the display bug.//
14.1	72
	73	(% class="wikigeneratedid" %)
15.1	74	//Please check the IP address is displayed and the Internet displays "OK", it works properly.//
6.1	75
11.1	76	(% class="wikigeneratedid" %)
27.2	77	[[image:image-20220527153827-5.png]]
11.1	78
27.3	79
82.2	80	== 2.3 Check dialing info ==
71.5	81
1.2	82
16.1	83	//run "logread -f" in gateway CLI。//
1.2	84
	85	(% class="box" %)
	86	(((
	87	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	88	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	89	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	90	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	91	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	92	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	93	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	94	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	95	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	96	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
	97	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	98	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
	99	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	100	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	101	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	102	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	103	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	104	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	105	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	106	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	107	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	108	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	109	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	110	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	111	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	112	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	113	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
27.3	114	(% style="color:#037691" %)*Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send (ATD99#^M) ~-~-~-~--> In case the dialling process already reach here.
	115	Normally the problem is with a provider, need to check if the SIM card has balance or other requirement from the cellular operator**(%%)
1.4	116	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	117	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	118	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
	119	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	120	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	121	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	122	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	123	)))
	124
65.1	125
82.2	126	== 2.4 If the following situation occurs, how can users solve this problem? ==
71.5	127
82.2	128	=== 2.4.1 The gateway can read the SIM card, But the Internet is displayed as Fail. ===
27.4	129
64.1	130
	131	//Users can check whether the APN matched by the SIM card is correct.//
	132
	133	//Regarding what APN your SIM card should use, Users can search for the APN corresponding to the SIM card by Google or ask the carrier.//
	134
71.5	135
64.1	136	[[image:image-20220718155937-1.png\|\|height="562" width="497"]]
	137
	138
82.2	139	=== 2.4.2 The gateway can read the SIM card, But the Internet is displayed as Fail, and at the same time Network displays the carrier network. ===
71.5	140
64.1	141
	142	//It should be SIM card no flow, users can insert SIM cards into the mobile phone for testing.//
	143
71.5	144
64.1	145	[[image:1658131428288-728.png\|\|height="538" width="494"]]
	146
	147
82.2	148	=== 2.4.3 The gateway can't read the SIM card, and the Internet is displayed as Fail. ===
71.5	149
64.1	150
	151	//Users need to check whether the SIM card type is suitable for the EC25 module.//
	152
71.5	153
64.1	154	[[image:1658131612484-845.png\|\|height="549" width="499"]]
	155
	156
82.2	157	=== 2.4.4 SIM display：~~SIM ERROR~~** Check SIM is inserted test SIM in a mobile phone？ ===
71.5	158
64.1	159
	160	//Users can insert SIM cards into the mobile phone for testing.//
	161
71.5	162
64.1	163	[[image:image-20220718160804-3.png\|\|height="602" width="500"]]
	164
71.5	165
82.2	166	= 3. Share Cellular Network for WiFi & LAN clients =
71.5	167
1.2	168
1.12	169	(((
15.1	170	//By default, the Cellular Network won't be shared with the WiFi or LAN clients. If users need to share with them, the user can modify the file.//
1.12	171	)))
1.2	172
1.5	173	(% class="box" %)
	174	(((
1.12	175	(((
15.1	176	root@dragino-1d25dc:~~# cat /etc/config/firewall
	177
1.5	178	config defaults
1.2	179	option syn_flood '1'
	180	option input 'ACCEPT'
	181	option output 'ACCEPT'
	182	option forward 'REJECT'
	183	config zone
	184	option name 'lan'
	185	list network 'lan'
	186	option input 'ACCEPT'
	187	option output 'ACCEPT'
1.5	188	option forward 'REJECT'
1.2	189	config zone
	190	option name 'wan'
	191	list network 'wan'
	192	list network 'wwan'
	193	list network 'wan6'
1.5	194	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	195	option input 'REJECT'
	196	option output 'ACCEPT'
	197	option forward 'ACCEPT'
	198	option masq '1'
	199	option mtu_fix '1'
	200	config forwarding
	201	option src 'lan'
	202	option dest 'wan'
1.5	203	)))
1.12	204	)))
1.2	205
1.14	206	(((
15.1	207	//and run /etc/init.d/firewall reload or reboot the device.//
	208
55.1	209
82.2	210	= 4. Switching between Cellular and Ethernet and Wi-Fi networks =
55.1	211
44.1	212
55.1	213	//By default, Cell is the backup WAN where the Ethernet or Wi-Fi network is used first if they are available.//
44.1	214
55.1	215	//Once the Ethernet of the Wi-Fi network is unavailable where the gateway network will switch to a Cell network from Ethernet or Wi-Fi.//
53.1	216
	217
	218
55.1	219	Enable Cellular and connect Ethernet at the same time
53.1	220
71.5	221	ETH icon is displayed as [[image:1658135519305-444.png\|\|height="18" width="19"]] Indicates that Ethernet is the main working network.
53.1	222
71.5	223	Cell icon is displayed as [[image:1658135500498-725.png\|\|height="17" width="17"]] Indicates that Cellular is the backup WAN.
53.1	224
55.1	225
82.2	226	== 4.1 Switching between Cellular and Ethernet networks ==
71.5	227
55.1	228
	229	//When connecting to the AP WiFI of the gateway, users can access the Web UI of the gateway through the default address 10.130.1.1//
	230
51.1	231	[[image:image-20220606140622-2.png\|\|height="664" width="1106"]]
44.1	232
	233
54.1	234	//Remove the network cable from the WAN port on the gateway, the gateway will switch to a Cellular network.//
53.1	235
	236	[[image:image-20220606140859-4.png\|\|height="687" width="1107"]]
	237
71.5	238	(% style="display:none" %) (%%)
55.1	239
82.2	240	== 4.2 Switching between Cellular and WiFi networks ==
71.5	241
44.1	242
53.1	243	(% class="wikigeneratedid" %)
54.1	244	//Enable Cellular and connect WiFi at the same time//
53.1	245
71.5	246	//WiFi icon is displayed as //[[image:1658135519305-444.png\|\|height="23" width="24"]] Indicates that WiFi is the main working network.
53.1	247
71.5	248	//Cell icon is displayed as //[[image:1658135500498-725.png\|\|height="23" width="22"]]// Indicates that Cellular is the backup WAN.//
53.1	249
71.5	250
51.1	251	[[image:image-20220606141113-7.png\|\|height="678" width="1106"]]
	252
53.1	253
54.1	254	//Close the WiFi WAN, the gateway will switch to a Cellular network.//
53.1	255
51.1	256	[[image:image-20220606140932-5.png\|\|height="687" width="1107"]]
	257
45.1	258
82.2	259	== 4.3 At the same time start Cellular and Ethernet and Wi-Fi networks ==
71.5	260
53.1	261
	262	[[image:image-20220606140328-1.png\|\|height="682" width="1108"]]
	263
15.1	264
1.14	265	)))
1.2	266
82.2	267	= 5. How does the gateway view the International Mobile Equipment Identity (IMEI) =
1.2	268
	269
74.1	270	Users can get the IMEI via Linux command, but you have to access the gateway CLI.
	271
	272	(% class="box infomessage" %)
	273	(((
	274	root@dragino-1b7c4c:~~# comgt -d /dev/ttyModemAT -s /etc/gcom/getimsi.gcom
	275	)))
	276
	277	[[image:image-20221027140604-1.png\|\|height="330" width="707"]]
	278
	279
	280	[[image:image-20221027151146-2.png\|\|height="554" width="1000"]]
	281
	282
	283	== How does the gateway access the Quetel module directly (to send AT commands) ==
	284
	285
15.1	286	//Users can access the gateway CLI and run the minicom command to get the configuration interface.//
	287
1.13	288	(((
15.1	289
	290
16.1	291	//Enter the minicom command, then select the option ''serial port setup".//
1.13	292	)))
1.2	293
1.5	294	(% class="box infomessage" %)
	295	(((
71.4	296	root@dragino-1ef9ac:~~# minicom -s
1.5	297	)))
1.2	298
31.2	299	[[image:image-20220527154132-6.png]]
1.2	300
	301
15.1	302	And then, change the setting:
1.2	303
15.1	304	(% class="box infomessage" %)
	305	(((
71.5	306	Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	307
71.5	308	Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1(%%)
15.1	309	)))
1.2	310
15.1	311
71.5	312	(% style="color:red" %)//Note: Enter the corresponding letter to change the configuration, like A,B,C//
15.1	313
31.2	314	[[image:image-20220527154154-7.png]]
1.2	315
	316
81.1	317	=== International Mobile Equipment Identity (IMEI) ===
	318
	319
71.5	320	(((
	321	//Enter (% style="color:blue" %)AT+GSN (%%)in the interface to get the IMEI,//
	322	)))
1.2	323
71.5	324	(((
	325	//For example: (% style="color:#037691" %)860548042566627(%%)//
	326	)))
1.2	327
1.6	328	(% class="box infomessage" %)
	329	(((
1.13	330	(((
31.2	331	AT+GSN
1.6	332	)))
1.13	333	)))
1.2	334
31.2	335	[[image:image-20220527154231-8.png]]
1.2	336
18.1	337
81.1	338	=== Integrated Circuit Card Identifier (ICCID) ===
71.5	339
81.1	340
	341	(((
82.1	342	//Enter (% style="color:blue" %)AT+QCCID (%%)in the interface to get the ICCID,//
81.1	343	)))
	344
	345	(((
	346	//For example: (% style="color:#037691" %)89860118005400261748(%%)//
	347
	348	(% class="box infomessage" %)
	349	(((
	350	AT+QCCID
	351	)))
	352	)))
	353
	354	[[image:1678675878256-777.png]]
	355
1.2	356
82.2	357	= 6. How does the gateway connect to the network via a USB 4G Dongle =
18.1	358
82.2	359	== 6.1 Introduction ==
1.2	360
20.1	361
22.1	362	(% style="color:red" %)//Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware//
1.2	363
1.15	364	(((
16.1	365	//This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.//
20.1	366
	367
1.15	368	)))
1.2	369
1.15	370	(((
20.1	371	//Many modes (and most LTE) USB modems provide qmi, mbim, ncm, rndis protocol for connection instead of legacy ppp protocol, they are faster and better, overall recommended.//
1.15	372	)))
1.2	373
1.15	374	(((
16.1	375	//This is not beginner-friendly due to too many protocols.//
20.1	376
	377	//For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]//
	378
	379
1.15	380	)))
1.2	381
82.2	382	== 6.2 How to use the USB Dongle at the gateway ==
1.2	383
18.1	384
16.1	385	//Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.//
1.2	386
1.15	387	(((
20.1	388	//For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.//
1.15	389	)))
1.2	390
1.8	391	(% class="box" %)
	392	(((
	393	Huawei-E3372/E8372
16.1	394	Check the (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	395	The version numbers starting with 21 is NCM mode
	396	The version numbers starting with 22 is Hilink mode
16.1	397	The E8372 only has Hilink mode
	398	~ (% style="color:red" %)Note： The e3372 in the vast majority of cases is Hilink mode
1.8	399	)))
1.2	400
21.1	401
82.2	402	== 6.3 Hilink mode ==
71.6	403
1.2	404
16.1	405	//Gateway upgrade to the specified firmware:[[Hilink.mode~~-~~-build-v5.4.1625627505>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/USB-Dongle_firmware/Hilink.mode--build-v5.4.1625627505-20210707-1113/]]//
1.2	406
18.1	407
82.2	408	=== 6.3.1 Plugs into the device ===
71.6	409
1.2	410
1.16	411	(((
16.1	412	//USB-Dongle plugs into the gateway USB port//
1.16	413	)))
1.2	414
1.16	415	(((
16.1	416	//Check the USB module via command (% style="color:#037691" %)lsusb//
1.16	417	)))
1.2	418
1.16	419	(((
16.1	420	(% style="color:red" %)//Note: Users need to that connect to the gateway command line via ssh.//
1.16	421	)))
1.2	422
32.2	423	[[image:image-20220527154739-9.png]]
1.2	424
18.1	425
82.2	426	=== 6.3.2 Detection of new network interfaces added ===
71.6	427
1.2	428
20.1	429	//Check network configuration command line input: //
1.2	430
16.1	431	(% class="box infomessage" %)
	432	(((
	433	(((
71.3	434	~ root@dragino-1ef9ac:~~# ifconfig -a
16.1	435	)))
	436	)))
1.2	437
33.2	438	[[image:image-20220527154822-10.png]]
1.2	439
16.1	440	//In the command, the output user can see that the new interface added is (% style="color:#037691" %)eth2//
1.2	441
16.1	442	//Usually, the user can see that the new interface added is (% style="color:#037691" %)eth2 (% style="color:black" %)or (% style="color:#037691" %)wwan0//
1.2	443
18.1	444
82.2	445	=== 6.3.3 Add the new interface to the network configuration. ===
71.6	446
1.2	447
16.1	448	//Enter the configuration from the command line~://
1.2	449
1.11	450	(% class="box" %)
	451	(((
	452	uci set network.lte=interface
1.2	453	uci set network.lte.proto=dhcp
1.11	454	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	455	uci commit network
	456	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	457	uci commit firewall
	458	/etc/init.d/network restart
1.11	459	)))
1.2	460
34.2	461	[[image:image-20220527154937-11.png]]
1.2	462
	463
19.1	464	//Checking Network Configurations//
18.1	465
16.1	466	//Command-line input: (% style="color:#037691" %)ifconfig//
1.2	467
35.2	468	[[image:image-20220527155013-12.png]]
1.2	469
16.1	470	//Now, Gateway is configured to access the internet on the LTE network.//
1.2	471
18.1	472
82.2	473	== 6.4 NCM mode ==
71.6	474
1.2	475
82.2	476	== 6.5 Troubleshooting ==
18.1	477
82.2	478	=== 6.5.1 The USB-Dongle interface cannot obtain the IP address. ===
1.2	479
18.1	480
16.1	481	//Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.//
1.2	482
18.1	483
82.2	484	= 7. How to reduce data traffic =
71.6	485
82.2	486	== 7.1 Reduce Status Uplink Interval ==
1.2	487
18.1	488
	489	//The gateways will use the data traffic below two places.//
	490
	491
16.1	492	//1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.//
1.2	493
16.1	494	//For this case, by default, the gateway will uplink self-status to the LoRaWAN server per the 30s. the users can adjust the interval time.//
1.2	495
36.2	496	[[image:image-20220527155108-13.png]]
1.2	497
18.1	498
71.3	499
16.1	500	//2. There is the data traffic from the gateway check self-network status. by default, the gateway will check the network per 15s.//
1.2	501
16.1	502	//For this case, We have monitored the loss of data traffic, which is the loss of 2M data traffic per day. the users can adjust the interval time following screenshots.//
1.2	503
39.2	504	[[image:image-20220527155358-16.png]]
1.2	505
16.1	506	//System General interface//
1.2	507
	508
39.2	509	[[image:image-20220527155229-15.png]]
	510
16.1	511	//Keepalive script interval time settings//
1.2	512
43.1	513
82.2	514	== 7.2 Filter unwanted packets ==
71.6	515
43.1	516
	517	See [[How to filter unwanted packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]
	518
76.1	519
82.2	520	== 7.3 Usage statistics ==
76.1	521
	522
	523	~1. Activate LuCI and connect to SSH following [[these instructions>>doc:Main.Install Luci in the new UI firmware.WebHome]]
	524
	525	2. Install luci-app-statistics using the following terminal commands:
	526
	527	{{{opkg update
	528	opkg install luci-app-statistics
	529	opkg install collectd-mod-interface
	530	/etc/init.d/collectd enable
	531	reboot
	532	}}}
	533
79.1	534	3. Select the interface to be monitored by going to Statistics > Setup in the upper menu then Network plugins > Interfaces. Select 3g-cellular in the list then save. You can select multiple interfaces by pressing the ctrl key while selecting the interfaces.
76.1	535
79.1	536	[[image:image-20221124133431-1.png]]
76.1	537
79.1	538	[[image:image-20221124135102-2.png]]
	539
	540	4. View the graphs and statistics using by going to Statistics > Graphs > Interfaces > 3g-cellullar
	541
	542	[[image:image-20221124134927-1.png]]
	543
	544

Wiki source code of Cellular network connection details and tips

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