Wiki source code of Notes for cellular network connection

Version 1.13 by Xiaoling on 2022/05/14 09:56

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
1.2	25	== 2.1 Do you order the model with cellular option ==
1.1	26
1.2	27	Make sure you order the model with the cellular option. Can check by command:
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
1.2	39	Below command can check:
1.1	40
1.2	41	(% class="box" %)
	42	(((
	43	root@dragino-1bbd90:~~# comgt -d /dev/ttyUSB3
	44	SIM ready
	45	Waiting for Registration..(120 sec max)
	46	Registered on Home network: "CHN-CT",7
	47	Signal Quality: 23,99
	48	)))
	49
	50	== 2.3 Check dialing info ==
	51
	52	run "logread -f" in console
	53
	54	(% class="box" %)
	55	(((
	56	Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
	57	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
	58	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
	59	Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
	60	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
	61	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
	62	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
	63	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
	64	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
	65	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
	66	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	67	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
	68	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	69	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	70	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M)
	71	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK)
	72	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M
	73	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
	74	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK
	75	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it
	76	Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
	77	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
	78	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK)
	79	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M
	80	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
	81	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK
	82	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
1.4	83	(% 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	84	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	85	(% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
1.2	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]: ATD*99#^M^M
	88	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT
	89	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it
	90	Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
	91	Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
	92	)))
	93
	94	= 3. Share Cellular Network for WiFi & LAN clients =
	95
1.12	96	(((
1.2	97	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	98	)))
1.2	99
1.12	100	(((
1.2	101	root@dragino-1d25dc:~~# cat /etc/config/firewall
1.12	102	)))
1.2	103
1.5	104	(% class="box" %)
	105	(((
1.12	106	(((
1.5	107	config defaults
1.2	108	option syn_flood '1'
	109	option input 'ACCEPT'
	110	option output 'ACCEPT'
	111	option forward 'REJECT'
	112	config zone
	113	option name 'lan'
	114	list network 'lan'
	115	option input 'ACCEPT'
	116	option output 'ACCEPT'
1.5	117	option forward 'REJECT'
1.2	118	config zone
	119	option name 'wan'
	120	list network 'wan'
	121	list network 'wwan'
	122	list network 'wan6'
1.5	123	list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
1.2	124	option input 'REJECT'
	125	option output 'ACCEPT'
	126	option forward 'ACCEPT'
	127	option masq '1'
	128	option mtu_fix '1'
	129	config forwarding
	130	option src 'lan'
	131	option dest 'wan'
1.5	132	)))
1.12	133	)))
1.2	134
	135	and run /etc/init.d/firewall reload or reboot the device.
	136
	137	= 4. How does the gateway view the International Mobile Equipment Identity (IMEI) =
	138
	139	Use SSH to access the gateway configuration page and run the minicom command
	140
1.13	141	(((
1.2	142	Select "Serial Port Setup":
1.13	143	)))
1.2	144
1.5	145	(% class="box infomessage" %)
	146	(((
	147	root@dragino-1ef9ac:~~# minicom -s
	148	)))
1.2	149
	150	[[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png\|\|height="265" width="400"]]
	151
	152	Enter the minicom command
	153
	154	Access the serial port of the 4G module
	155
	156	Serial port setup is as follows:
	157
1.6	158	Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	159
1.6	160	Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1 or 115200 8N1(%%)
1.2	161
	162	[[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png\|\|height="164" width="400"]]
	163
	164	Configuring USB Ports
	165
	166
	167	Enter AT+GSN in the serial port to view the IMEI
	168
1.6	169	For example: (% style="color:#037691" %)860548042566627(%%)
1.2	170
1.6	171	(% class="box infomessage" %)
	172	(((
1.13	173	(((
1.6	174	AT+GSN
	175	)))
1.13	176	)))
1.2	177
	178	[[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png\|\|height="286" width="400"]]
	179
	180	Enter the AT command
	181
	182	= 5. How does the gateway connect to the network via a USB 4G Dongle =
	183
	184	== 5.1 Introduction ==
	185
1.7	186	(% style="color:red" %)Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
1.2	187
	188	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
	189
	190	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]]
	191
	192	This is not beginner-friendly due to too many protocols.
	193
	194
	195	== 5.2 How to use the USB-Dongle at the gateway ==
	196
	197	Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
	198
	199	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
	200
1.8	201	(% class="box" %)
	202	(((
	203	Huawei-E3372/E8372
1.9	204	Check (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	205	The version numbers starting with 21 is NCM mode
	206	The version numbers starting with 22 is Hilink mode
	207	The E8372 only have Hilink mode
1.10	208	(% style="color:red" %)Note：The e3372 in the vast majority of cases is Hilink mode
1.8	209	)))
1.2	210
	211	== 5.3 Hilink mode ==
	212
	213	Gateway upgrade to the specified firmware:
	214
	215	[[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/]]
	216
	217	=== 5.3.1 1.Plugs into the device ===
	218
	219	USB-Dongle plugs into the gateway USB port
	220
1.11	221	Check the USB module via comman (% style="color:#037691" %)lsusb
1.2	222
1.11	223	(% style="color:red" %)Note : User neet to do that connect gateway command line via ssh.
1.2	224
	225	[[image:https://wiki.dragino.com/images/2/25/Usb-4g.png\|\|height="63" width="554"]]
	226
	227	Checking USB Ports
	228
	229	=== 5.3.2 2.Detection of new network interfaces added ===
	230
1.11	231	Command line input: (% style="color:#037691" %)ifconfig -a
1.2	232
	233	[[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png\|\|height="401" width="400"]]
	234
	235	Check the network
	236
1.11	237	In the command output user can see that the new interface added is (% style="color:#037691" %)eth2
1.2	238
1.11	239	Usually,user can see that the new interface added is (% style="color:#037691" %)eth2 (% style="color:black" %)or (% style="color:#037691" %)wwan0
1.2	240
	241	=== 5.3.3 3.Add the new interface to the network confiutation. ===
	242
	243	Enter the configuration from the command line:
	244
1.11	245	(% class="box" %)
	246	(((
	247	uci set network.lte=interface
1.2	248	uci set network.lte.proto=dhcp
1.11	249	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	250	uci commit network
	251	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	252	uci commit firewall
	253	/etc/init.d/network restart
1.11	254	)))
1.2	255
	256	[[~[~[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]]
	257
	258	Configuration
	259
	260	Checking Network Configurations
	261
1.11	262	Command line input: (% style="color:#037691" %)ifconfig
1.2	263
	264	[[~[~[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]]
	265
	266	Checking Network Configurations
	267
	268	Now, Gateway is configured to access the internet on the Lte network.
	269
	270	== 5.4 NCM mode ==
	271
	272	== 5.5 Troubleshooting ==
	273
	274	=== 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
	275
	276	Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
	277
	278	= 6. How to reduce data traffic =
	279
	280	== 6.1 Introduce ==
	281
	282	The gateways will use the data traffic were below two places.
	283
	284	~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
	285
	286	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.
	287
	288	[[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png\|\|height="282" width="600"]]
	289
	290	LoRa interval time setting
	291
	292	2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
	293
	294	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.
	295
	296	[[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png\|\|height="319" width="600"]]
	297
	298	Systrm General
	299
	300	[[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png\|\|height="319" width="600"]]
	301
	302	Keppalive script interval time settings
	303
	304

Wiki source code of Notes for cellular network connection

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