Wiki source code of Notes for cellular network connection

Version 1.15 by Xiaoling on 2022/05/14 09:59

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	(((
1.15	176	AT+GSN
1.6	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
1.15	190	(((
1.2	191	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
1.15	192	)))
1.2	193
1.15	194	(((
1.2	195	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	196	)))
1.2	197
1.15	198	(((
1.2	199	This is not beginner-friendly due to too many protocols.
1.15	200	)))
1.2	201
	202	== 5.2 How to use the USB-Dongle at the gateway ==
	203
	204	Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
	205
1.15	206	(((
1.2	207	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
1.15	208	)))
1.2	209
1.8	210	(% class="box" %)
	211	(((
	212	Huawei-E3372/E8372
1.9	213	Check (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
1.2	214	The version numbers starting with 21 is NCM mode
	215	The version numbers starting with 22 is Hilink mode
	216	The E8372 only have Hilink mode
1.15	217	~ (% style="color:red" %)Note：The e3372 in the vast majority of cases is Hilink mode
1.8	218	)))
1.2	219
	220	== 5.3 Hilink mode ==
	221
1.15	222	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	223
	224	=== 5.3.1 1.Plugs into the device ===
	225
	226	USB-Dongle plugs into the gateway USB port
	227
1.11	228	Check the USB module via comman (% style="color:#037691" %)lsusb
1.2	229
1.11	230	(% style="color:red" %)Note : User neet to do that connect gateway command line via ssh.
1.2	231
	232	[[image:https://wiki.dragino.com/images/2/25/Usb-4g.png\|\|height="63" width="554"]]
	233
	234	Checking USB Ports
	235
	236	=== 5.3.2 2.Detection of new network interfaces added ===
	237
1.11	238	Command line input: (% style="color:#037691" %)ifconfig -a
1.2	239
	240	[[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png\|\|height="401" width="400"]]
	241
	242	Check the network
	243
1.11	244	In the command output user can see that the new interface added is (% style="color:#037691" %)eth2
1.2	245
1.11	246	Usually,user can see that the new interface added is (% style="color:#037691" %)eth2 (% style="color:black" %)or (% style="color:#037691" %)wwan0
1.2	247
	248	=== 5.3.3 3.Add the new interface to the network confiutation. ===
	249
	250	Enter the configuration from the command line:
	251
1.11	252	(% class="box" %)
	253	(((
	254	uci set network.lte=interface
1.2	255	uci set network.lte.proto=dhcp
1.11	256	uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add
1.2	257	uci commit network
	258	uci set firewall.@zone[1].network="wan wwan wan6 lte"
	259	uci commit firewall
	260	/etc/init.d/network restart
1.11	261	)))
1.2	262
	263	[[~[~[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]]
	264
	265	Configuration
	266
	267	Checking Network Configurations
	268
1.11	269	Command line input: (% style="color:#037691" %)ifconfig
1.2	270
	271	[[~[~[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]]
	272
	273	Checking Network Configurations
	274
	275	Now, Gateway is configured to access the internet on the Lte network.
	276
	277	== 5.4 NCM mode ==
	278
	279	== 5.5 Troubleshooting ==
	280
	281	=== 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
	282
	283	Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
	284
	285	= 6. How to reduce data traffic =
	286
	287	== 6.1 Introduce ==
	288
	289	The gateways will use the data traffic were below two places.
	290
	291	~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
	292
	293	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.
	294
	295	[[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png\|\|height="282" width="600"]]
	296
	297	LoRa interval time setting
	298
	299	2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
	300
	301	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.
	302
	303	[[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png\|\|height="319" width="600"]]
	304
	305	Systrm General
	306
	307	[[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png\|\|height="319" width="600"]]
	308
	309	Keppalive script interval time settings
	310
	311

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