Wiki source code of Notes for cellular network connection

Version 1.14 by Xiaoling on 2022/05/14 09:57

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
1.14	135	(((
1.2	136	and run /etc/init.d/firewall reload or reboot the device.
1.14	137	)))
1.2	138
	139	= 4. How does the gateway view the International Mobile Equipment Identity (IMEI) =
	140
	141	Use SSH to access the gateway configuration page and run the minicom command
	142
1.13	143	(((
1.2	144	Select "Serial Port Setup":
1.13	145	)))
1.2	146
1.5	147	(% class="box infomessage" %)
	148	(((
	149	root@dragino-1ef9ac:~~# minicom -s
	150	)))
1.2	151
	152	[[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png\|\|height="265" width="400"]]
	153
	154	Enter the minicom command
	155
	156	Access the serial port of the 4G module
	157
	158	Serial port setup is as follows:
	159
1.6	160	Serial Device : (% style="color:#037691" %)/dev/ttyModemAT
1.2	161
1.6	162	Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1 or 115200 8N1(%%)
1.2	163
	164	[[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png\|\|height="164" width="400"]]
	165
	166	Configuring USB Ports
	167
	168
	169	Enter AT+GSN in the serial port to view the IMEI
	170
1.6	171	For example: (% style="color:#037691" %)860548042566627(%%)
1.2	172
1.6	173	(% class="box infomessage" %)
	174	(((
1.13	175	(((
1.6	176	AT+GSN
	177	)))
1.13	178	)))
1.2	179
	180	[[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png\|\|height="286" width="400"]]
	181
	182	Enter the AT command
	183
	184	= 5. How does the gateway connect to the network via a USB 4G Dongle =
	185
	186	== 5.1 Introduction ==
	187
1.7	188	(% style="color:red" %)Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
1.2	189
	190	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
	191
	192	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]]
	193
	194	This is not beginner-friendly due to too many protocols.
	195
	196
	197	== 5.2 How to use the USB-Dongle at the gateway ==
	198
	199	Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
	200
	201	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
	202
1.8	203	(% class="box" %)
	204	(((
	205	Huawei-E3372/E8372
1.9	206	Check (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	207	The version numbers starting with 21 is NCM mode
	208	The version numbers starting with 22 is Hilink mode
	209	The E8372 only have Hilink mode
1.10	210	(% style="color:red" %)Note：The e3372 in the vast majority of cases is Hilink mode
1.8	211	)))
1.2	212
	213	== 5.3 Hilink mode ==
	214
	215	Gateway upgrade to the specified firmware:
	216
	217	[[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/]]
	218
	219	=== 5.3.1 1.Plugs into the device ===
	220
	221	USB-Dongle plugs into the gateway USB port
	222
1.11	223	Check the USB module via comman (% style="color:#037691" %)lsusb
1.2	224
1.11	225	(% style="color:red" %)Note : User neet to do that connect gateway command line via ssh.
1.2	226
	227	[[image:https://wiki.dragino.com/images/2/25/Usb-4g.png\|\|height="63" width="554"]]
	228
	229	Checking USB Ports
	230
	231	=== 5.3.2 2.Detection of new network interfaces added ===
	232
1.11	233	Command line input: (% style="color:#037691" %)ifconfig -a
1.2	234
	235	[[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png\|\|height="401" width="400"]]
	236
	237	Check the network
	238
1.11	239	In the command output user can see that the new interface added is (% style="color:#037691" %)eth2
1.2	240
1.11	241	Usually,user can see that the new interface added is (% style="color:#037691" %)eth2 (% style="color:black" %)or (% style="color:#037691" %)wwan0
1.2	242
	243	=== 5.3.3 3.Add the new interface to the network confiutation. ===
	244
	245	Enter the configuration from the command line:
	246
1.11	247	(% class="box" %)
	248	(((
	249	uci set network.lte=interface
1.2	250	uci set network.lte.proto=dhcp
1.11	251	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	252	uci commit network
	253	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	254	uci commit firewall
	255	/etc/init.d/network restart
1.11	256	)))
1.2	257
	258	[[~[~[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]]
	259
	260	Configuration
	261
	262	Checking Network Configurations
	263
1.11	264	Command line input: (% style="color:#037691" %)ifconfig
1.2	265
	266	[[~[~[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]]
	267
	268	Checking Network Configurations
	269
	270	Now, Gateway is configured to access the internet on the Lte network.
	271
	272	== 5.4 NCM mode ==
	273
	274	== 5.5 Troubleshooting ==
	275
	276	=== 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
	277
	278	Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
	279
	280	= 6. How to reduce data traffic =
	281
	282	== 6.1 Introduce ==
	283
	284	The gateways will use the data traffic were below two places.
	285
	286	~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
	287
	288	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.
	289
	290	[[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png\|\|height="282" width="600"]]
	291
	292	LoRa interval time setting
	293
	294	2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
	295
	296	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.
	297
	298	[[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png\|\|height="319" width="600"]]
	299
	300	Systrm General
	301
	302	[[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png\|\|height="319" width="600"]]
	303
	304	Keppalive script interval time settings
	305
	306

Wiki source code of Notes for cellular network connection

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