Wiki source code of Notes for cellular network connection

Version 71.4 by Xiaoling on 2022/07/21 18:02

version	line-number	content
71.4	1
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23.2	3	Table of Contents：
1.2	4
1.1	5	{{toc/}}
	6
23.2	7
	8
15.1	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
15.1	26	= 2. How to Debug if Cellular connection fails =
1.1	27
	28
15.1	29	//If there is a problem with the cellular connection. Please check the below points~://
1.1	30
	31
15.1	32	== 2.1 Do you order the model with a cellular option ==
	33
	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
15.1	48	== 2.2 Do you input the SIM card correctly ==
1.1	49
2.1	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
18.1	80	== 2.3 Check dialing info ==
1.2	81
16.1	82	//run "logread -f" in gateway CLI。//
1.2	83
	84	(% class="box" %)
	85	(((
	86	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	87	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	88	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	89	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	90	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	91	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	92	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	93	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	94	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	95	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
	96	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	97	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
	98	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	99	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	100	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	101	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	102	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	103	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	104	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	105	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	106	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	107	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	108	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	109	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	110	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	111	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	112	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
27.3	113	(% 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.
	114	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	115	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	116	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	117	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
	118	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	119	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	120	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	121	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	122	)))
	123
65.1	124
64.1	125	== 2.4 If the following situation occurs, how can users solve this problem? ==
27.4	126
64.1	127
67.1	128	=== 2.4.1 The gateway can read the SIM card, But the Internet is displayed as Fail. ===
64.1	129
	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
	135	[[image:image-20220718155937-1.png\|\|height="562" width="497"]]
	136
	137
67.1	138	=== 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. ===
64.1	139
	140
	141	//It should be SIM card no flow, users can insert SIM cards into the mobile phone for testing.//
	142
	143	[[image:1658131428288-728.png\|\|height="538" width="494"]]
	144
	145
67.1	146	=== 2.4.3 The gateway can't read the SIM card, and the Internet is displayed as Fail. ===
64.1	147
	148
	149	//Users need to check whether the SIM card type is suitable for the EC25 module.//
	150
	151	[[image:1658131612484-845.png\|\|height="549" width="499"]]
	152
	153
67.1	154	=== *2.4.4 SIM display：~~*SIM ERROR~~ Check SIM is inserted test SIM in a mobile phone？ ===
64.1	155
	156
	157	//Users can insert SIM cards into the mobile phone for testing.//
	158
	159	[[image:image-20220718160804-3.png\|\|height="602" width="500"]]
	160
15.1	161	= 3. Share Cellular Network for WiFi & LAN clients =
1.2	162
15.1	163
1.12	164	(((
15.1	165	//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	166	)))
1.2	167
1.5	168	(% class="box" %)
	169	(((
1.12	170	(((
15.1	171	root@dragino-1d25dc:~~# cat /etc/config/firewall
	172
1.5	173	config defaults
1.2	174	option syn_flood '1'
	175	option input 'ACCEPT'
	176	option output 'ACCEPT'
	177	option forward 'REJECT'
	178	config zone
	179	option name 'lan'
	180	list network 'lan'
	181	option input 'ACCEPT'
	182	option output 'ACCEPT'
1.5	183	option forward 'REJECT'
1.2	184	config zone
	185	option name 'wan'
	186	list network 'wan'
	187	list network 'wwan'
	188	list network 'wan6'
1.5	189	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	190	option input 'REJECT'
	191	option output 'ACCEPT'
	192	option forward 'ACCEPT'
	193	option masq '1'
	194	option mtu_fix '1'
	195	config forwarding
	196	option src 'lan'
	197	option dest 'wan'
1.5	198	)))
1.12	199	)))
1.2	200
1.14	201	(((
15.1	202	//and run /etc/init.d/firewall reload or reboot the device.//
	203
55.1	204
	205
44.1	206	= 4. Switching between Cellular and Ethernet and Wi-Fi networks =
	207
	208
55.1	209	//By default, Cell is the backup WAN where the Ethernet or Wi-Fi network is used first if they are available.//
44.1	210
55.1	211	//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	212
	213
	214
55.1	215	Enable Cellular and connect Ethernet at the same time
53.1	216
71.1	217	ETH icon is displayed as [[image:1658135519305-444.png]] Indicates that Ethernet is the main working network.
53.1	218
71.1	219	Cell icon is displayed as [[image:1658135500498-725.png]] Indicates that Cellular is the backup WAN.
53.1	220
55.1	221
67.1	222	== 4.1 Switching between Cellular and Ethernet networks ==
55.1	223
	224
	225	//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//
	226
51.1	227	[[image:image-20220606140622-2.png\|\|height="664" width="1106"]]
44.1	228
	229
54.1	230	//Remove the network cable from the WAN port on the gateway, the gateway will switch to a Cellular network.//
53.1	231
	232	[[image:image-20220606140859-4.png\|\|height="687" width="1107"]]
	233
55.1	234
51.1	235	== 4.2 Switching between Cellular and WiFi networks ==
44.1	236
53.1	237
	238	(% class="wikigeneratedid" %)
54.1	239	//Enable Cellular and connect WiFi at the same time//
53.1	240
71.2	241	//WiFi icon is displayed as //[[image:1658135519305-444.png]]// Indicates that WiFi is the main working network.//
53.1	242
71.2	243	//Cell icon is displayed as //[[image:1658135500498-725.png]]// Indicates that Cellular is the backup WAN.//
53.1	244
51.1	245	[[image:image-20220606141113-7.png\|\|height="678" width="1106"]]
	246
53.1	247
54.1	248	//Close the WiFi WAN, the gateway will switch to a Cellular network.//
53.1	249
51.1	250	[[image:image-20220606140932-5.png\|\|height="687" width="1107"]]
	251
45.1	252
55.1	253	== 4.3 At the same time start Cellular and Ethernet and Wi-Fi networks ==
53.1	254
	255
	256	[[image:image-20220606140328-1.png\|\|height="682" width="1108"]]
	257
15.1	258
1.14	259	)))
1.2	260
44.1	261	= 5. How does the gateway view the International Mobile Equipment Identity (IMEI) =
1.2	262
	263
15.1	264	//Users can access the gateway CLI and run the minicom command to get the configuration interface.//
	265
1.13	266	(((
15.1	267
	268
16.1	269	//Enter the minicom command, then select the option ''serial port setup".//
1.13	270	)))
1.2	271
1.5	272	(% class="box infomessage" %)
	273	(((
71.4	274	root@dragino-1ef9ac:~~# minicom -s
1.5	275	)))
1.2	276
31.2	277	[[image:image-20220527154132-6.png]]
1.2	278
	279
15.1	280	And then, change the setting:
1.2	281
15.1	282	(% class="box infomessage" %)
	283	(((
31.2	284	(% style="color:black" %)Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	285
31.2	286	(% style="color:black" %)Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1
15.1	287	)))
1.2	288
15.1	289
16.1	290	//Note: Enter the corresponding letter to change the configuration, like A,B,C//
15.1	291
31.2	292	[[image:image-20220527154154-7.png]]
1.2	293
	294
22.1	295	//Enter AT+GSN in the interface to get the IMEI,//
1.2	296
22.1	297	// For example (% style="color:#037691" %)860548042566627(%%)//
1.2	298
1.6	299	(% class="box infomessage" %)
	300	(((
1.13	301	(((
31.2	302	AT+GSN
1.6	303	)))
1.13	304	)))
1.2	305
31.2	306	[[image:image-20220527154231-8.png]]
1.2	307
18.1	308
56.1	309	= 6. How does the gateway connect to the network via a USB 4G Dongle =
1.2	310
18.1	311
56.1	312	== 6.1 Introduction ==
1.2	313
20.1	314
22.1	315	(% style="color:red" %)//Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware//
1.2	316
1.15	317	(((
16.1	318	//This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.//
20.1	319
	320
1.15	321	)))
1.2	322
1.15	323	(((
20.1	324	//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	325	)))
1.2	326
1.15	327	(((
16.1	328	//This is not beginner-friendly due to too many protocols.//
20.1	329
	330	//For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]//
	331
	332
1.15	333	)))
1.2	334
56.1	335	== 6.2 How to use the USB Dongle at the gateway ==
1.2	336
18.1	337
16.1	338	//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	339
1.15	340	(((
20.1	341	//For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.//
1.15	342	)))
1.2	343
1.8	344	(% class="box" %)
	345	(((
	346	Huawei-E3372/E8372
16.1	347	Check the (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	348	The version numbers starting with 21 is NCM mode
	349	The version numbers starting with 22 is Hilink mode
16.1	350	The E8372 only has Hilink mode
	351	~ (% style="color:red" %)Note： The e3372 in the vast majority of cases is Hilink mode
1.8	352	)))
1.2	353
21.1	354
56.1	355	== 6.3 Hilink mode ==
1.2	356
18.1	357
16.1	358	//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	359
18.1	360
56.1	361	=== 6.3.1 Plugs into the device ===
1.2	362
18.1	363
1.16	364	(((
16.1	365	//USB-Dongle plugs into the gateway USB port//
1.16	366	)))
1.2	367
1.16	368	(((
16.1	369	//Check the USB module via command (% style="color:#037691" %)lsusb//
1.16	370	)))
1.2	371
1.16	372	(((
16.1	373	(% style="color:red" %)//Note: Users need to that connect to the gateway command line via ssh.//
1.16	374	)))
1.2	375
32.2	376	[[image:image-20220527154739-9.png]]
1.2	377
18.1	378
56.1	379	=== 6.3.2 Detection of new network interfaces added ===
1.2	380
18.1	381
20.1	382	//Check network configuration command line input: //
1.2	383
16.1	384	(% class="box infomessage" %)
	385	(((
	386	(((
71.3	387	~ root@dragino-1ef9ac:~~# ifconfig -a
16.1	388	)))
	389	)))
1.2	390
33.2	391	[[image:image-20220527154822-10.png]]
1.2	392
16.1	393	//In the command, the output user can see that the new interface added is (% style="color:#037691" %)eth2//
1.2	394
16.1	395	//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	396
18.1	397
56.1	398	=== 6.3.3 Add the new interface to the network configuration. ===
1.2	399
18.1	400
16.1	401	//Enter the configuration from the command line~://
1.2	402
1.11	403	(% class="box" %)
	404	(((
	405	uci set network.lte=interface
1.2	406	uci set network.lte.proto=dhcp
1.11	407	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	408	uci commit network
	409	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	410	uci commit firewall
	411	/etc/init.d/network restart
1.11	412	)))
1.2	413
34.2	414	[[image:image-20220527154937-11.png]]
1.2	415
	416
19.1	417	//Checking Network Configurations//
18.1	418
16.1	419	//Command-line input: (% style="color:#037691" %)ifconfig//
1.2	420
35.2	421	[[image:image-20220527155013-12.png]]
1.2	422
16.1	423	//Now, Gateway is configured to access the internet on the LTE network.//
1.2	424
18.1	425
56.1	426	== 6.4 NCM mode ==
1.2	427
18.1	428
56.1	429	== 6.5 Troubleshooting ==
1.2	430
18.1	431
56.1	432	=== 6.5.1 The USB-Dongle interface cannot obtain the IP address. ===
1.2	433
18.1	434
16.1	435	//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	436
18.1	437
56.1	438	= 7. How to reduce data traffic =
1.2	439
18.1	440
56.1	441	== 7.1 Reduce Status Uplink Interval ==
1.2	442
	443
18.1	444	//The gateways will use the data traffic below two places.//
	445
	446
16.1	447	//1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.//
1.2	448
16.1	449	//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	450
36.2	451	[[image:image-20220527155108-13.png]]
1.2	452
18.1	453
71.3	454
16.1	455	//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	456
16.1	457	//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	458
39.2	459	[[image:image-20220527155358-16.png]]
1.2	460
16.1	461	//System General interface//
1.2	462
	463
39.2	464	[[image:image-20220527155229-15.png]]
	465
16.1	466	//Keepalive script interval time settings//
1.2	467
43.1	468
56.1	469	== 7.2 Filter unwanted packets ==
43.1	470
	471	See [[How to filter unwanted packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]
	472
42.3	473

Wiki source code of Notes for cellular network connection

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