Wiki source code of Notes for cellular network connection

Version 5.1 by Kilight Cao on 2022/05/25 11:16

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

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