Wiki source code of Notes for cellular network connection

Version 64.1 by Kilight Cao on 2022/07/18 16:43

version	line-number	content
23.2	1	Table of Contents：
1.2	2
1.1	3	{{toc/}}
	4
23.2	5
	6
15.1	7	= 1. Enable Cellular Connection =
1.1	8
	9
15.1	10	//If your device has a Cellular module, you can see the below screenshot. enable the cellular connection here.//
	11
42.2	12	[[image:image-20220601110850-2.png]]
1.1	13
15.1	14	//Enable Cellular Connection//
	15
42.4	16
1.12	17	(((
15.1	18	//If your device doesn't have a cellular module, you will see a cellular module not detected.//
1.12	19	)))
1.1	20
24.2	21	[[image:image-20220527153544-2.png]]
1.1	22
	23
15.1	24	= 2. How to Debug if Cellular connection fails =
1.1	25
	26
15.1	27	//If there is a problem with the cellular connection. Please check the below points~://
1.1	28
	29
15.1	30	== 2.1 Do you order the model with a cellular option ==
	31
	32
	33	//Make sure you order the model with the cellular option. Can check by command or via the Web UI.//
	34
1.2	35	(% class="box" %)
	36	(((
15.1	37	//root@dragino-1bbd90:~~# lsusb
1.2	38	Bus 001 Device 004: ID 2c7c:0125 ~-~-> This is the Cellular module
	39	Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
15.1	40	Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub//
1.2	41	)))
1.1	42
41.2	43	[[image:image-20220601110748-1.png]]
15.1	44
6.1	45
15.1	46	== 2.2 Do you input the SIM card correctly ==
1.1	47
2.1	48
15.1	49	//Below command can check if you have a SIM card inserted, or via Web UI//
	50
	51	* //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//
	52	* //Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.//
	53
1.2	54	(% class="box" %)
	55	(((
15.1	56	//root@dragino-1dadd8:~~# comgt -d /dev/ttyUSB3
1.2	57	SIM ready
	58	Waiting for Registration..(120 sec max)
6.1	59	Registered on Home network: "CHN-UNICOM",7
15.1	60	Signal Quality: 10,99//
1.2	61	)))
	62
15.1	63
11.1	64	(% class="wikigeneratedid" %)
27.2	65	[[image:image-20220527153804-4.png]]
14.1	66
15.1	67
14.1	68	(% class="wikigeneratedid" %)
15.1	69	//Note: If the icon is missing some information, like SIM, Network, or Signal, which may be due to the display bug.//
14.1	70
	71	(% class="wikigeneratedid" %)
15.1	72	//Please check the IP address is displayed and the Internet displays "OK", it works properly.//
6.1	73
11.1	74	(% class="wikigeneratedid" %)
27.2	75	[[image:image-20220527153827-5.png]]
11.1	76
27.3	77
18.1	78	== 2.3 Check dialing info ==
1.2	79
16.1	80	//run "logread -f" in gateway CLI。//
1.2	81
	82	(% class="box" %)
	83	(((
	84	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	85	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	86	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	87	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	88	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	89	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	90	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	91	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	92	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	93	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
	94	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	95	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
	96	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	97	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	98	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	99	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	100	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	101	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	102	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	103	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	104	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	105	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	106	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	107	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	108	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	109	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	110	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
27.3	111	(% 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.
	112	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	113	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	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]: ATD*99#^M^M
	116	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	117	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	118	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	119	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	120	)))
	121
64.1	122	== 2.4 If the following situation occurs, how can users solve this problem? ==
27.4	123
64.1	124
	125	=== 1. The gateway can read the SIM card, But the Internet is displayed as Fail. ===
	126
	127
	128	//Users can check whether the APN matched by the SIM card is correct.//
	129
	130	//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.//
	131
	132	[[image:image-20220718155937-1.png\|\|height="562" width="497"]]
	133
	134
	135	=== 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. ===
	136
	137
	138	//It should be SIM card no flow, users can insert SIM cards into the mobile phone for testing.//
	139
	140	[[image:1658131428288-728.png\|\|height="538" width="494"]]
	141
	142
	143	=== 3. The gateway can't read the SIM card, and the Internet is displayed as Fail. ===
	144
	145
	146	//Users need to check whether the SIM card type is suitable for the EC25 module.//
	147
	148	[[image:1658131612484-845.png\|\|height="549" width="499"]]
	149
	150
	151	=== *4. SIM display：~~*SIM ERROR~~ Check SIM is inserted test SIM in a mobile phone？ ===
	152
	153
	154	//Users can insert SIM cards into the mobile phone for testing.//
	155
	156	[[image:image-20220718160804-3.png\|\|height="602" width="500"]]
	157
15.1	158	= 3. Share Cellular Network for WiFi & LAN clients =
1.2	159
15.1	160
1.12	161	(((
15.1	162	//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	163	)))
1.2	164
1.5	165	(% class="box" %)
	166	(((
1.12	167	(((
15.1	168	root@dragino-1d25dc:~~# cat /etc/config/firewall
	169
1.5	170	config defaults
1.2	171	option syn_flood '1'
	172	option input 'ACCEPT'
	173	option output 'ACCEPT'
	174	option forward 'REJECT'
	175	config zone
	176	option name 'lan'
	177	list network 'lan'
	178	option input 'ACCEPT'
	179	option output 'ACCEPT'
1.5	180	option forward 'REJECT'
1.2	181	config zone
	182	option name 'wan'
	183	list network 'wan'
	184	list network 'wwan'
	185	list network 'wan6'
1.5	186	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	187	option input 'REJECT'
	188	option output 'ACCEPT'
	189	option forward 'ACCEPT'
	190	option masq '1'
	191	option mtu_fix '1'
	192	config forwarding
	193	option src 'lan'
	194	option dest 'wan'
1.5	195	)))
1.12	196	)))
1.2	197
1.14	198	(((
15.1	199	//and run /etc/init.d/firewall reload or reboot the device.//
	200
55.1	201
	202
44.1	203	= 4. Switching between Cellular and Ethernet and Wi-Fi networks =
	204
	205
55.1	206	//By default, Cell is the backup WAN where the Ethernet or Wi-Fi network is used first if they are available.//
44.1	207
55.1	208	//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	209
	210
	211
55.1	212	Enable Cellular and connect Ethernet at the same time
53.1	213
57.1	214	ETH icon is displayed as [[image:http://wiki1.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/DLOS8N/WebHome/1652436675869-206.png?width=15&height=14&rev=1.1\|\|alt="1652436675869-206.png" height="28" width="30"]] Indicates that Ethernet is the main working network.
53.1	215
64.1	216	Cell icon is displayed as [[image:http://wiki1.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/DLOS8N/WebHome/1652436705761-420.png?width=15&height=15&rev=1.1\|\|alt="1652436705761-420.png" height="30" width="30"]] Indicates that Cellular is the backup WAN.
53.1	217
55.1	218
	219	== 4.1. Switching between Cellular and Ethernet networks ==
	220
	221
	222	//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//
	223
51.1	224	[[image:image-20220606140622-2.png\|\|height="664" width="1106"]]
44.1	225
	226
54.1	227	//Remove the network cable from the WAN port on the gateway, the gateway will switch to a Cellular network.//
53.1	228
	229	[[image:image-20220606140859-4.png\|\|height="687" width="1107"]]
	230
55.1	231
51.1	232	== 4.2 Switching between Cellular and WiFi networks ==
44.1	233
53.1	234
	235	(% class="wikigeneratedid" %)
54.1	236	//Enable Cellular and connect WiFi at the same time//
53.1	237
57.1	238	//WiFi icon is displayed as //[[image:http://wiki1.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/DLOS8N/WebHome/1652436675869-206.png?width=15&height=14&rev=1.1\|\|alt="1652436675869-206.png" height="28" width="30"]]// Indicates that WiFi is the main working network.//
53.1	239
57.1	240	//Cell icon is displayed as //[[image:http://wiki1.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/DLOS8N/WebHome/1652436705761-420.png?width=15&height=15&rev=1.1\|\|alt="1652436705761-420.png" height="30" width="30"]]// Indicates that Cellular is the backup WAN.//
53.1	241
51.1	242	[[image:image-20220606141113-7.png\|\|height="678" width="1106"]]
	243
53.1	244
54.1	245	//Close the WiFi WAN, the gateway will switch to a Cellular network.//
53.1	246
51.1	247	[[image:image-20220606140932-5.png\|\|height="687" width="1107"]]
	248
45.1	249
55.1	250	== 4.3 At the same time start Cellular and Ethernet and Wi-Fi networks ==
53.1	251
	252
	253	[[image:image-20220606140328-1.png\|\|height="682" width="1108"]]
	254
15.1	255
1.14	256	)))
1.2	257
44.1	258	= 5. How does the gateway view the International Mobile Equipment Identity (IMEI) =
1.2	259
	260
15.1	261	//Users can access the gateway CLI and run the minicom command to get the configuration interface.//
	262
1.13	263	(((
15.1	264
	265
16.1	266	//Enter the minicom command, then select the option ''serial port setup".//
1.13	267	)))
1.2	268
1.5	269	(% class="box infomessage" %)
	270	(((
	271	root@dragino-1ef9ac:~~# minicom -s
	272	)))
1.2	273
31.2	274	[[image:image-20220527154132-6.png]]
1.2	275
	276
15.1	277	And then, change the setting:
1.2	278
15.1	279	(% class="box infomessage" %)
	280	(((
31.2	281	(% style="color:black" %)Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	282
31.2	283	(% style="color:black" %)Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1
15.1	284	)))
1.2	285
15.1	286
16.1	287	//Note: Enter the corresponding letter to change the configuration, like A,B,C//
15.1	288
31.2	289	[[image:image-20220527154154-7.png]]
1.2	290
	291
22.1	292	//Enter AT+GSN in the interface to get the IMEI,//
1.2	293
22.1	294	// For example (% style="color:#037691" %)860548042566627(%%)//
1.2	295
1.6	296	(% class="box infomessage" %)
	297	(((
1.13	298	(((
31.2	299	AT+GSN
1.6	300	)))
1.13	301	)))
1.2	302
31.2	303	[[image:image-20220527154231-8.png]]
1.2	304
18.1	305
56.1	306	= 6. How does the gateway connect to the network via a USB 4G Dongle =
1.2	307
18.1	308
56.1	309	== 6.1 Introduction ==
1.2	310
20.1	311
22.1	312	(% style="color:red" %)//Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware//
1.2	313
1.15	314	(((
16.1	315	//This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.//
20.1	316
	317
1.15	318	)))
1.2	319
1.15	320	(((
20.1	321	//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	322	)))
1.2	323
1.15	324	(((
16.1	325	//This is not beginner-friendly due to too many protocols.//
20.1	326
	327	//For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]//
	328
	329
1.15	330	)))
1.2	331
56.1	332	== 6.2 How to use the USB Dongle at the gateway ==
1.2	333
18.1	334
16.1	335	//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	336
1.15	337	(((
20.1	338	//For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.//
1.15	339	)))
1.2	340
1.8	341	(% class="box" %)
	342	(((
	343	Huawei-E3372/E8372
16.1	344	Check the (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	345	The version numbers starting with 21 is NCM mode
	346	The version numbers starting with 22 is Hilink mode
16.1	347	The E8372 only has Hilink mode
	348	~ (% style="color:red" %)Note： The e3372 in the vast majority of cases is Hilink mode
1.8	349	)))
1.2	350
21.1	351
56.1	352	== 6.3 Hilink mode ==
1.2	353
18.1	354
16.1	355	//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	356
18.1	357
56.1	358	=== 6.3.1 Plugs into the device ===
1.2	359
18.1	360
1.16	361	(((
16.1	362	//USB-Dongle plugs into the gateway USB port//
1.16	363	)))
1.2	364
1.16	365	(((
16.1	366	//Check the USB module via command (% style="color:#037691" %)lsusb//
1.16	367	)))
1.2	368
1.16	369	(((
16.1	370	(% style="color:red" %)//Note: Users need to that connect to the gateway command line via ssh.//
1.16	371	)))
1.2	372
32.2	373	[[image:image-20220527154739-9.png]]
1.2	374
18.1	375
56.1	376	=== 6.3.2 Detection of new network interfaces added ===
1.2	377
18.1	378
20.1	379	//Check network configuration command line input: //
1.2	380
16.1	381	(% class="box infomessage" %)
	382	(((
	383	(((
	384	root@dragino-1ef9ac:~~# ifconfig -a
	385	)))
	386	)))
1.2	387
33.2	388	[[image:image-20220527154822-10.png]]
1.2	389
16.1	390	//In the command, the output user can see that the new interface added is (% style="color:#037691" %)eth2//
1.2	391
16.1	392	//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	393
18.1	394
56.1	395	=== 6.3.3 Add the new interface to the network configuration. ===
1.2	396
18.1	397
16.1	398	//Enter the configuration from the command line~://
1.2	399
1.11	400	(% class="box" %)
	401	(((
	402	uci set network.lte=interface
1.2	403	uci set network.lte.proto=dhcp
1.11	404	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	405	uci commit network
	406	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	407	uci commit firewall
	408	/etc/init.d/network restart
1.11	409	)))
1.2	410
34.2	411	[[image:image-20220527154937-11.png]]
1.2	412
	413
19.1	414	//Checking Network Configurations//
18.1	415
16.1	416	//Command-line input: (% style="color:#037691" %)ifconfig//
1.2	417
35.2	418	[[image:image-20220527155013-12.png]]
1.2	419
16.1	420	//Now, Gateway is configured to access the internet on the LTE network.//
1.2	421
18.1	422
56.1	423	== 6.4 NCM mode ==
1.2	424
18.1	425
56.1	426	== 6.5 Troubleshooting ==
1.2	427
18.1	428
56.1	429	=== 6.5.1 The USB-Dongle interface cannot obtain the IP address. ===
1.2	430
18.1	431
16.1	432	//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	433
18.1	434
56.1	435	= 7. How to reduce data traffic =
1.2	436
18.1	437
56.1	438	== 7.1 Reduce Status Uplink Interval ==
1.2	439
	440
18.1	441	//The gateways will use the data traffic below two places.//
	442
	443
16.1	444	//1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.//
1.2	445
16.1	446	//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	447
36.2	448	[[image:image-20220527155108-13.png]]
1.2	449
18.1	450
16.1	451	//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	452
16.1	453	//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	454
39.2	455	[[image:image-20220527155358-16.png]]
1.2	456
16.1	457	//System General interface//
1.2	458
	459
39.2	460	[[image:image-20220527155229-15.png]]
	461
16.1	462	//Keepalive script interval time settings//
1.2	463
43.1	464
56.1	465	== 7.2 Filter unwanted packets ==
43.1	466
	467	See [[How to filter unwanted packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]]
	468
42.3	469

Wiki source code of Notes for cellular network connection

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