Wiki source code of Notes for cellular network connection

Version 7.1 by Kilight Cao on 2022/05/25 13:39

version	line-number	content
1.2	1	Table of Contents：
	2
1.1	3	{{toc/}}
	4
1.2	5	= 1. Enable Cellular Connection =
1.1	6
1.2	7	If your device has a Cellular module, you can see the below screenshot. enable the cellular connection here.
1.1	8
1.2	9	[[image:https://wiki.dragino.com/images/thumb/8/81/Cellular_11.png/600px-Cellular_11.png\|\|height="262" width="600"]]
1.1	10
1.2	11	Enable Cellular Connection
1.1	12
1.12	13	(((
1.2	14	If your device doesn't have a cellular module, you will see a cellular module not detected.
1.12	15	)))
1.1	16
1.2	17	[[image:https://wiki.dragino.com/images/thumb/d/da/Cellular_10.png/600px-Cellular_10.png\|\|height="400" width="600"]]
1.1	18
1.2	19	No Cellular Module
1.1	20
1.2	21	= 2. How to Debug if Cellular connection fail =
1.1	22
1.2	23	If there is a problem for cellular connection. Please check the below points:
1.1	24
2.1	25	== 2.1 Do you order the model with a cellular option ==
1.1	26
2.1	27	Make sure you order the model with the cellular option. Can check by command or via the Web UI.
1.1	28
1.2	29	(% class="box" %)
	30	(((
	31	root@dragino-1bbd90:~~# lsusb
	32	Bus 001 Device 004: ID 2c7c:0125 ~-~-> This is the Cellular module
	33	Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
	34	Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
	35	)))
1.1	36
6.2	37	== ==
6.1	38
1.2	39	== 2.2 Do you input the SIM card correctly ==
1.1	40
3.1	41	Below command can check if you have a SIM card inserted, or via Web UI
1.1	42
3.1	43	* 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
6.1	44	* Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.
2.1	45
1.2	46	(% class="box" %)
	47	(((
6.1	48	root@dragino-1dadd8:~~# comgt -d /dev/ttyUSB3
1.2	49	SIM ready
	50	Waiting for Registration..(120 sec max)
6.1	51	Registered on Home network: "CHN-UNICOM",7
	52	Signal Quality: 10,99
1.2	53	)))
	54
6.2	55	== ==
6.1	56
1.2	57	== 2.3 Check dialing info ==
	58
	59	run "logread -f" in console
	60
	61	(% class="box" %)
	62	(((
	63	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	64	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	65	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	66	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	67	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	68	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	69	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	70	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	71	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	72	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
	73	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	74	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
	75	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	76	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	77	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	78	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	79	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	80	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	81	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	82	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	83	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	84	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	85	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	86	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	87	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	88	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	89	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
1.4	90	(% style="color:#037691" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send (ATD*99#^M) ~-~-~-~--> In case the dialling process already reach here.
1.5	91	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	92	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	93	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	94	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
	95	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	96	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	97	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	98	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	99	)))
	100
	101	= 3. Share Cellular Network for WiFi & LAN clients =
	102
1.12	103	(((
1.2	104	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	105	)))
1.2	106
1.12	107	(((
1.2	108	root@dragino-1d25dc:~~# cat /etc/config/firewall
1.12	109	)))
1.2	110
1.5	111	(% class="box" %)
	112	(((
1.12	113	(((
1.5	114	config defaults
1.2	115	option syn_flood '1'
	116	option input 'ACCEPT'
	117	option output 'ACCEPT'
	118	option forward 'REJECT'
	119	config zone
	120	option name 'lan'
	121	list network 'lan'
	122	option input 'ACCEPT'
	123	option output 'ACCEPT'
1.5	124	option forward 'REJECT'
1.2	125	config zone
	126	option name 'wan'
	127	list network 'wan'
	128	list network 'wwan'
	129	list network 'wan6'
1.5	130	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	131	option input 'REJECT'
	132	option output 'ACCEPT'
	133	option forward 'ACCEPT'
	134	option masq '1'
	135	option mtu_fix '1'
	136	config forwarding
	137	option src 'lan'
	138	option dest 'wan'
1.5	139	)))
1.12	140	)))
1.2	141
1.14	142	(((
1.2	143	and run /etc/init.d/firewall reload or reboot the device.
1.14	144	)))
1.2	145
	146	= 4. How does the gateway view the International Mobile Equipment Identity (IMEI) =
	147
	148	Use SSH to access the gateway configuration page and run the minicom command
	149
1.13	150	(((
1.2	151	Select "Serial Port Setup":
1.13	152	)))
1.2	153
1.5	154	(% class="box infomessage" %)
	155	(((
	156	root@dragino-1ef9ac:~~# minicom -s
	157	)))
1.2	158
	159	[[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png\|\|height="265" width="400"]]
	160
	161	Enter the minicom command
	162
	163	Access the serial port of the 4G module
	164
	165	Serial port setup is as follows:
	166
1.6	167	Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	168
1.6	169	Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1 or 115200 8N1(%%)
1.2	170
	171	[[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png\|\|height="164" width="400"]]
	172
	173	Configuring USB Ports
	174
	175
	176	Enter AT+GSN in the serial port to view the IMEI
	177
1.6	178	For example: (% style="color:#037691" %)860548042566627(%%)
1.2	179
1.6	180	(% class="box infomessage" %)
	181	(((
1.13	182	(((
1.15	183	AT+GSN
1.6	184	)))
1.13	185	)))
1.2	186
	187	[[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png\|\|height="286" width="400"]]
	188
	189	Enter the AT command
	190
	191	= 5. How does the gateway connect to the network via a USB 4G Dongle =
	192
	193	== 5.1 Introduction ==
	194
1.7	195	(% style="color:red" %)Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
1.2	196
1.15	197	(((
1.2	198	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
1.15	199	)))
1.2	200
1.15	201	(((
1.2	202	Many mode (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. For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]
1.15	203	)))
1.2	204
1.15	205	(((
1.2	206	This is not beginner-friendly due to too many protocols.
1.15	207	)))
1.2	208
	209	== 5.2 How to use the USB-Dongle at the gateway ==
	210
	211	Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
	212
1.15	213	(((
1.2	214	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
1.15	215	)))
1.2	216
1.8	217	(% class="box" %)
	218	(((
	219	Huawei-E3372/E8372
1.9	220	Check (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	221	The version numbers starting with 21 is NCM mode
	222	The version numbers starting with 22 is Hilink mode
	223	The E8372 only have Hilink mode
1.15	224	~ (% style="color:red" %)Note：The e3372 in the vast majority of cases is Hilink mode
1.8	225	)))
1.2	226
	227	== 5.3 Hilink mode ==
	228
1.15	229	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	230
	231	=== 5.3.1 1.Plugs into the device ===
	232
1.16	233	(((
1.2	234	USB-Dongle plugs into the gateway USB port
1.16	235	)))
1.2	236
1.16	237	(((
1.11	238	Check the USB module via comman (% style="color:#037691" %)lsusb
1.16	239	)))
1.2	240
1.16	241	(((
1.11	242	(% style="color:red" %)Note : User neet to do that connect gateway command line via ssh.
1.16	243	)))
1.2	244
	245	[[image:https://wiki.dragino.com/images/2/25/Usb-4g.png\|\|height="63" width="554"]]
	246
	247	Checking USB Ports
	248
	249	=== 5.3.2 2.Detection of new network interfaces added ===
	250
1.11	251	Command line input: (% style="color:#037691" %)ifconfig -a
1.2	252
	253	[[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png\|\|height="401" width="400"]]
	254
	255	Check the network
	256
1.11	257	In the command output user can see that the new interface added is (% style="color:#037691" %)eth2
1.2	258
1.11	259	Usually,user can see that the new interface added is (% style="color:#037691" %)eth2 (% style="color:black" %)or (% style="color:#037691" %)wwan0
1.2	260
	261	=== 5.3.3 3.Add the new interface to the network confiutation. ===
	262
	263	Enter the configuration from the command line:
	264
1.11	265	(% class="box" %)
	266	(((
	267	uci set network.lte=interface
1.2	268	uci set network.lte.proto=dhcp
1.11	269	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	270	uci commit network
	271	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	272	uci commit firewall
	273	/etc/init.d/network restart
1.11	274	)))
1.2	275
	276	[[~[~[image:https://wiki.dragino.com/images/thumb/7/73/Usb-4g-4.png/600px-Usb-4g-4.png~\|~\|height="116" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:Usb-4g-4.png]]
	277
	278	Configuration
	279
	280	Checking Network Configurations
	281
1.11	282	Command line input: (% style="color:#037691" %)ifconfig
1.2	283
	284	[[~[~[image:https://wiki.dragino.com/images/b/b8/Usb-4g-3.png~\|~\|height="514" width="554"~]~]>>url:https://wiki.dragino.com/index.php/File:Usb-4g-3.png]]
	285
	286	Checking Network Configurations
	287
	288	Now, Gateway is configured to access the internet on the Lte network.
	289
	290	== 5.4 NCM mode ==
	291
	292	== 5.5 Troubleshooting ==
	293
	294	=== 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
	295
	296	Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
	297
	298	= 6. How to reduce data traffic =
	299
	300	== 6.1 Introduce ==
	301
	302	The gateways will use the data traffic were below two places.
	303
	304	~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
	305
	306	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.
	307
	308	[[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png\|\|height="282" width="600"]]
	309
	310	LoRa interval time setting
	311
	312	2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
	313
	314	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.
	315
	316	[[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png\|\|height="319" width="600"]]
	317
	318	Systrm General
	319
	320	[[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png\|\|height="319" width="600"]]
	321
	322	Keppalive script interval time settings
	323
	324

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