Wiki source code of Notes for cellular network connection

Version 71.7 by Xiaoling on 2022/08/09 18:01

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
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
71.5	26
15.1	27	= 2. How to Debug if Cellular connection fails =
1.1	28
	29
15.1	30	//If there is a problem with the cellular connection. Please check the below points~://
1.1	31
	32
71.5	33
15.1	34	== 2.1 Do you order the model with a cellular option ==
	35
	36
	37	//Make sure you order the model with the cellular option. Can check by command or via the Web UI.//
	38
1.2	39	(% class="box" %)
	40	(((
15.1	41	//root@dragino-1bbd90:~~# lsusb
1.2	42	Bus 001 Device 004: ID 2c7c:0125 ~-~-> This is the Cellular module
	43	Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
15.1	44	Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub//
1.2	45	)))
1.1	46
41.2	47	[[image:image-20220601110748-1.png]]
15.1	48
6.1	49
71.5	50
15.1	51	== 2.2 Do you input the SIM card correctly ==
1.1	52
2.1	53
15.1	54	//Below command can check if you have a SIM card inserted, or via Web UI//
	55
	56	* //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//
	57	* //Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.//
	58
1.2	59	(% class="box" %)
	60	(((
15.1	61	//root@dragino-1dadd8:~~# comgt -d /dev/ttyUSB3
1.2	62	SIM ready
	63	Waiting for Registration..(120 sec max)
6.1	64	Registered on Home network: "CHN-UNICOM",7
15.1	65	Signal Quality: 10,99//
1.2	66	)))
	67
15.1	68
11.1	69	(% class="wikigeneratedid" %)
27.2	70	[[image:image-20220527153804-4.png]]
14.1	71
15.1	72
14.1	73	(% class="wikigeneratedid" %)
71.4	74	//(% 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	75
	76	(% class="wikigeneratedid" %)
15.1	77	//Please check the IP address is displayed and the Internet displays "OK", it works properly.//
6.1	78
11.1	79	(% class="wikigeneratedid" %)
27.2	80	[[image:image-20220527153827-5.png]]
11.1	81
27.3	82
71.5	83
18.1	84	== 2.3 Check dialing info ==
1.2	85
71.5	86
16.1	87	//run "logread -f" in gateway CLI。//
1.2	88
	89	(% class="box" %)
	90	(((
	91	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	92	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	93	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	94	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	95	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	96	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	97	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	98	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	99	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	100	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^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]: AT&F^M^M
	103	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	104	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	105	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	106	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	107	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	108	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	109	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	110	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	111	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	112	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	113	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	114	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	115	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	116	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	117	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
27.3	118	(% 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.
	119	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	120	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	121	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	122	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
	123	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	124	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	125	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	126	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	127	)))
	128
65.1	129
71.5	130
64.1	131	== 2.4 If the following situation occurs, how can users solve this problem? ==
27.4	132
64.1	133
67.1	134	=== 2.4.1 The gateway can read the SIM card, But the Internet is displayed as Fail. ===
64.1	135
	136
	137	//Users can check whether the APN matched by the SIM card is correct.//
	138
	139	//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.//
	140
71.5	141
64.1	142	[[image:image-20220718155937-1.png\|\|height="562" width="497"]]
	143
	144
71.5	145
67.1	146	=== 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	147
	148
	149	//It should be SIM card no flow, users can insert SIM cards into the mobile phone for testing.//
	150
71.5	151
64.1	152	[[image:1658131428288-728.png\|\|height="538" width="494"]]
	153
	154
71.5	155
67.1	156	=== 2.4.3 The gateway can't read the SIM card, and the Internet is displayed as Fail. ===
64.1	157
	158
	159	//Users need to check whether the SIM card type is suitable for the EC25 module.//
	160
71.5	161
64.1	162	[[image:1658131612484-845.png\|\|height="549" width="499"]]
	163
	164
71.5	165
67.1	166	=== *2.4.4 SIM display：~~*SIM ERROR~~ Check SIM is inserted test SIM in a mobile phone？ ===
64.1	167
	168
	169	//Users can insert SIM cards into the mobile phone for testing.//
	170
71.5	171
64.1	172	[[image:image-20220718160804-3.png\|\|height="602" width="500"]]
	173
71.5	174
	175
15.1	176	= 3. Share Cellular Network for WiFi & LAN clients =
1.2	177
15.1	178
1.12	179	(((
15.1	180	//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	181	)))
1.2	182
1.5	183	(% class="box" %)
	184	(((
1.12	185	(((
15.1	186	root@dragino-1d25dc:~~# cat /etc/config/firewall
	187
1.5	188	config defaults
1.2	189	option syn_flood '1'
	190	option input 'ACCEPT'
	191	option output 'ACCEPT'
	192	option forward 'REJECT'
	193	config zone
	194	option name 'lan'
	195	list network 'lan'
	196	option input 'ACCEPT'
	197	option output 'ACCEPT'
1.5	198	option forward 'REJECT'
1.2	199	config zone
	200	option name 'wan'
	201	list network 'wan'
	202	list network 'wwan'
	203	list network 'wan6'
1.5	204	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	205	option input 'REJECT'
	206	option output 'ACCEPT'
	207	option forward 'ACCEPT'
	208	option masq '1'
	209	option mtu_fix '1'
	210	config forwarding
	211	option src 'lan'
	212	option dest 'wan'
1.5	213	)))
1.12	214	)))
1.2	215
1.14	216	(((
15.1	217	//and run /etc/init.d/firewall reload or reboot the device.//
	218
55.1	219
	220
44.1	221	= 4. Switching between Cellular and Ethernet and Wi-Fi networks =
	222
	223
55.1	224	//By default, Cell is the backup WAN where the Ethernet or Wi-Fi network is used first if they are available.//
44.1	225
55.1	226	//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	227
	228
	229
55.1	230	Enable Cellular and connect Ethernet at the same time
53.1	231
71.5	232	ETH icon is displayed as [[image:1658135519305-444.png\|\|height="18" width="19"]] Indicates that Ethernet is the main working network.
53.1	233
71.5	234	Cell icon is displayed as [[image:1658135500498-725.png\|\|height="17" width="17"]] Indicates that Cellular is the backup WAN.
53.1	235
55.1	236
71.5	237	(% style="display:none" %) (%%)
	238
67.1	239	== 4.1 Switching between Cellular and Ethernet networks ==
55.1	240
	241
	242	//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//
	243
51.1	244	[[image:image-20220606140622-2.png\|\|height="664" width="1106"]]
44.1	245
	246
54.1	247	//Remove the network cable from the WAN port on the gateway, the gateway will switch to a Cellular network.//
53.1	248
	249	[[image:image-20220606140859-4.png\|\|height="687" width="1107"]]
	250
71.5	251	(% style="display:none" %) (%%)
55.1	252
71.5	253
51.1	254	== 4.2 Switching between Cellular and WiFi networks ==
44.1	255
53.1	256
	257	(% class="wikigeneratedid" %)
54.1	258	//Enable Cellular and connect WiFi at the same time//
53.1	259
71.5	260	//WiFi icon is displayed as //[[image:1658135519305-444.png\|\|height="23" width="24"]] Indicates that WiFi is the main working network.
53.1	261
71.5	262	//Cell icon is displayed as //[[image:1658135500498-725.png\|\|height="23" width="22"]]// Indicates that Cellular is the backup WAN.//
53.1	263
71.5	264
51.1	265	[[image:image-20220606141113-7.png\|\|height="678" width="1106"]]
	266
53.1	267
54.1	268	//Close the WiFi WAN, the gateway will switch to a Cellular network.//
53.1	269
51.1	270	[[image:image-20220606140932-5.png\|\|height="687" width="1107"]]
	271
45.1	272
71.5	273
55.1	274	== 4.3 At the same time start Cellular and Ethernet and Wi-Fi networks ==
53.1	275
	276
	277	[[image:image-20220606140328-1.png\|\|height="682" width="1108"]]
	278
71.5	279
15.1	280
1.14	281	)))
1.2	282
44.1	283	= 5. How does the gateway view the International Mobile Equipment Identity (IMEI) =
1.2	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
71.5	317	(((
	318	//Enter (% style="color:blue" %)AT+GSN (%%)in the interface to get the IMEI,//
	319	)))
1.2	320
71.5	321	(((
	322	//For example: (% style="color:#037691" %)860548042566627(%%)//
	323	)))
1.2	324
1.6	325	(% class="box infomessage" %)
	326	(((
1.13	327	(((
31.2	328	AT+GSN
1.6	329	)))
1.13	330	)))
1.2	331
31.2	332	[[image:image-20220527154231-8.png]]
1.2	333
18.1	334
71.5	335
56.1	336	= 6. How does the gateway connect to the network via a USB 4G Dongle =
1.2	337
18.1	338
56.1	339	== 6.1 Introduction ==
1.2	340
20.1	341
22.1	342	(% style="color:red" %)//Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware//
1.2	343
1.15	344	(((
16.1	345	//This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.//
20.1	346
	347
1.15	348	)))
1.2	349
1.15	350	(((
20.1	351	//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	352	)))
1.2	353
1.15	354	(((
16.1	355	//This is not beginner-friendly due to too many protocols.//
20.1	356
	357	//For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]//
	358
71.6	359
20.1	360
1.15	361	)))
1.2	362
56.1	363	== 6.2 How to use the USB Dongle at the gateway ==
1.2	364
18.1	365
16.1	366	//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	367
1.15	368	(((
20.1	369	//For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.//
1.15	370	)))
1.2	371
1.8	372	(% class="box" %)
	373	(((
	374	Huawei-E3372/E8372
16.1	375	Check the (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	376	The version numbers starting with 21 is NCM mode
	377	The version numbers starting with 22 is Hilink mode
16.1	378	The E8372 only has Hilink mode
	379	~ (% style="color:red" %)Note： The e3372 in the vast majority of cases is Hilink mode
1.8	380	)))
1.2	381
21.1	382
71.6	383
56.1	384	== 6.3 Hilink mode ==
1.2	385
18.1	386
16.1	387	//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	388
18.1	389
71.6	390
56.1	391	=== 6.3.1 Plugs into the device ===
1.2	392
18.1	393
1.16	394	(((
16.1	395	//USB-Dongle plugs into the gateway USB port//
1.16	396	)))
1.2	397
1.16	398	(((
16.1	399	//Check the USB module via command (% style="color:#037691" %)lsusb//
1.16	400	)))
1.2	401
1.16	402	(((
16.1	403	(% style="color:red" %)//Note: Users need to that connect to the gateway command line via ssh.//
1.16	404	)))
1.2	405
32.2	406	[[image:image-20220527154739-9.png]]
1.2	407
18.1	408
71.6	409
56.1	410	=== 6.3.2 Detection of new network interfaces added ===
1.2	411
18.1	412
20.1	413	//Check network configuration command line input: //
1.2	414
16.1	415	(% class="box infomessage" %)
	416	(((
	417	(((
71.3	418	~ root@dragino-1ef9ac:~~# ifconfig -a
16.1	419	)))
	420	)))
1.2	421
33.2	422	[[image:image-20220527154822-10.png]]
1.2	423
16.1	424	//In the command, the output user can see that the new interface added is (% style="color:#037691" %)eth2//
1.2	425
16.1	426	//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	427
18.1	428
71.6	429
56.1	430	=== 6.3.3 Add the new interface to the network configuration. ===
1.2	431
18.1	432
16.1	433	//Enter the configuration from the command line~://
1.2	434
1.11	435	(% class="box" %)
	436	(((
	437	uci set network.lte=interface
1.2	438	uci set network.lte.proto=dhcp
1.11	439	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	440	uci commit network
	441	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	442	uci commit firewall
	443	/etc/init.d/network restart
1.11	444	)))
1.2	445
34.2	446	[[image:image-20220527154937-11.png]]
1.2	447
	448
19.1	449	//Checking Network Configurations//
18.1	450
16.1	451	//Command-line input: (% style="color:#037691" %)ifconfig//
1.2	452
35.2	453	[[image:image-20220527155013-12.png]]
1.2	454
16.1	455	//Now, Gateway is configured to access the internet on the LTE network.//
1.2	456
18.1	457
71.6	458
56.1	459	== 6.4 NCM mode ==
1.2	460
18.1	461
56.1	462	== 6.5 Troubleshooting ==
1.2	463
18.1	464
56.1	465	=== 6.5.1 The USB-Dongle interface cannot obtain the IP address. ===
1.2	466
18.1	467
16.1	468	//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	469
18.1	470
71.6	471
56.1	472	= 7. How to reduce data traffic =
1.2	473
18.1	474
56.1	475	== 7.1 Reduce Status Uplink Interval ==
1.2	476
	477
18.1	478	//The gateways will use the data traffic below two places.//
	479
	480
16.1	481	//1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.//
1.2	482
16.1	483	//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	484
36.2	485	[[image:image-20220527155108-13.png]]
1.2	486
18.1	487
71.3	488
16.1	489	//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	490
16.1	491	//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	492
39.2	493	[[image:image-20220527155358-16.png]]
1.2	494
16.1	495	//System General interface//
1.2	496
	497
39.2	498	[[image:image-20220527155229-15.png]]
	499
16.1	500	//Keepalive script interval time settings//
1.2	501
43.1	502
71.6	503
56.1	504	== 7.2 Filter unwanted packets ==
43.1	505
71.6	506
43.1	507	See [[How to filter unwanted packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]
	508
42.3	509

Wiki source code of Notes for cellular network connection

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