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Version 1.5 by Xiaoling on 2022/05/14 09:25
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Xiaoling 1.2 1 Table of Contents：
2
Xiaoling 1.1 3 {{toc/}}
4
Xiaoling 1.2 5 = 1. Enable Cellular Connection =
Xiaoling 1.1 6
Xiaoling 1.2 7 If your device has a Cellular module, you can see the below screenshot. enable the cellular connection here.
Xiaoling 1.1 8
Xiaoling 1.2 9 [[image:https://wiki.dragino.com/images/thumb/8/81/Cellular_11.png/600px-Cellular_11.png||height="262" width="600"]]
Xiaoling 1.1 10
Xiaoling 1.2 11 Enable Cellular Connection
Xiaoling 1.1 12
Xiaoling 1.2 13 If your device doesn't have a cellular module, you will see a cellular module not detected.
Xiaoling 1.1 14
Xiaoling 1.2 15 [[image:https://wiki.dragino.com/images/thumb/d/da/Cellular_10.png/600px-Cellular_10.png||height="400" width="600"]]
Xiaoling 1.1 16
Xiaoling 1.2 17 No Cellular Module
Xiaoling 1.1 18
Xiaoling 1.2 19 = 2. How to Debug if Cellular connection fail =
Xiaoling 1.1 20
Xiaoling 1.2 21 If there is a problem for cellular connection. Please check the below points:
Xiaoling 1.1 22
Xiaoling 1.2 23 == 2.1 Do you order the model with cellular option ==
Xiaoling 1.1 24
Xiaoling 1.2 25 Make sure you order the model with the cellular option. Can check by command:
Xiaoling 1.1 26
Xiaoling 1.2 27 (% class="box" %)
28 (((
29 root@dragino-1bbd90:~~# lsusb
30 Bus 001 Device 004: ID 2c7c:0125      ~-~-> This is the Cellular module
31 Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
32 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
33 )))
Xiaoling 1.1 34
Xiaoling 1.2 35 == 2.2 Do you input the SIM card correctly ==
Xiaoling 1.1 36
Xiaoling 1.2 37 Below command can check:
Xiaoling 1.1 38
Xiaoling 1.2 39 (% class="box" %)
40 (((
41 root@dragino-1bbd90:~~# comgt -d /dev/ttyUSB3
42 SIM ready
43 Waiting for Registration..(120 sec max)
44 Registered on Home network: "CHN-CT",7
45 Signal Quality: 23,99
46 )))
47
48 == 2.3 Check dialing info ==
49
50 run "logread -f" in console
51
52 (% class="box" %)
53 (((
54 Fri Feb  7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0
55 Fri Feb  7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN
56 Fri Feb  7 01:20:29 2020 user.notice iot_keep_alive: Default interface is
57 Fri Feb  7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface
58 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY)
59 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER)
60 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR)
61 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: report (CONNECT)
62 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds
63 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M)
64 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: expect (OK)
65 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M
66 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: OK
67 Fri Feb  7 01:20:29 2020 local2.info chat[29485]:  ~-~- got it
68 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: send (ATE1^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]: ^M
71 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M
72 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: OK
73 Fri Feb  7 01:20:29 2020 local2.info chat[29485]:  ~-~- got it
74 Fri Feb  7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M)
75 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds
76 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: expect (OK)
77 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: ^M
78 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
79 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: OK
80 Fri Feb  7 01:20:30 2020 local2.info chat[29485]:  ~-~- got it
Xiaoling 1.4 81 (% 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.
Xiaoling 1.5 82 Normally the problem is with a provider, need to check if the SIM card has balance or other requirement from the cellular operator(%%)
Xiaoling 1.4 83 (% style="color:black" %)Fri Feb  7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
Xiaoling 1.2 84 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: ^M
85 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
86 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: CONNECT
87 Fri Feb  7 01:20:30 2020 local2.info chat[29485]:  ~-~- got it
88 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: send ( ^M)
89 Fri Feb  7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established.
90 )))
91
92 = 3. Share Cellular Network for WiFi & LAN clients =
93
94 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.
95
96 root@dragino-1d25dc:~~# cat /etc/config/firewall
97
Xiaoling 1.5 98 (% class="box" %)
99 (((
100 config defaults
Xiaoling 1.2 101 option syn_flood '1'
102 option input 'ACCEPT'
103 option output 'ACCEPT'
104 option forward 'REJECT'
105 config zone
106 option name 'lan'
107 list network 'lan'
108 option input 'ACCEPT'
109 option output 'ACCEPT'
Xiaoling 1.5 110 option forward 'REJECT' 
Xiaoling 1.2 111 config zone
112 option name 'wan'
113 list network 'wan'
114 list network 'wwan'
115 list network 'wan6'
Xiaoling 1.5 116 list network 'cellular'   ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
Xiaoling 1.2 117 option input 'REJECT'
118 option output 'ACCEPT'
119 option forward 'ACCEPT'
120 option masq '1'
121 option mtu_fix '1'
122 config forwarding
123 option src 'lan'
124 option dest 'wan'
Xiaoling 1.5 125 )))
Xiaoling 1.2 126
127 and run **/etc/init.d/firewall reload** or reboot the device.
128
129 = 4. How does the gateway view the International Mobile Equipment Identity (IMEI) =
130
131 Use SSH to access the gateway configuration page and run the minicom command
132
133 Select "**Serial Port Setup**":
134
Xiaoling 1.5 135 (% class="box infomessage" %)
136 (((
137 root@dragino-1ef9ac:~~# minicom -s
138 )))
Xiaoling 1.2 139
140 [[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png||height="265" width="400"]]
141
142 Enter the minicom command
143
144 Access the serial port of the 4G module
145
146 Serial port setup is as follows:
147
Xiaoling 1.5 148 **Serial Device :** (% style="color:#037691" %)/dev/ttyModemAT
Xiaoling 1.2 149
Xiaoling 1.5 150 **Bps/Par/Bits :**(% style="color:#037691" %) 9600 8N1 or 115200 8N1
Xiaoling 1.2 151
152 [[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png||height="164" width="400"]]
153
154 Configuring USB Ports
155
156
157 Enter AT+GSN in the serial port to view the IMEI
158
Xiaoling 1.5 159 For example: (% style="color:#037691" %)860548042566627
Xiaoling 1.2 160
161 {{{AT+GSN
162 }}}
163
164 [[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png||height="286" width="400"]]
165
166 Enter the AT command
167
168
169 = 5. How does the gateway connect to the network via a USB 4G Dongle =
170
171 == 5.1 Introduction ==
172
173 Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
174
175 This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
176
177 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]]
178
179 This is not beginner-friendly due to too many protocols.
180
181
182 == 5.2 How to use the USB-Dongle at the gateway ==
183
184 Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
185
186 For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
187
188 {{{ Huawei-E3372/E8372
189 Check E3372 version to determine the mode.
190 The version numbers starting with 21 is NCM mode
191 The version numbers starting with 22 is Hilink mode
192 The E8372 only have Hilink mode
193 Note：The e3372 in the vast majority of cases is Hilink mode
194 }}}
195
196 == 5.3 Hilink mode ==
197
198 Gateway upgrade to the specified firmware:
199
200 [[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/]]
201
202 === 5.3.1 1.Plugs into the device ===
203
204 USB-Dongle plugs into the gateway USB port
205
206 Check the USB module via comman lsusb
207
208 Note : User neet to do that connect gateway command line via ssh.
209
210 [[image:https://wiki.dragino.com/images/2/25/Usb-4g.png||height="63" width="554"]]
211
212 Checking USB Ports
213
214 === 5.3.2 2.Detection of new network interfaces added ===
215
216 Command line input: ifconfig -a
217
218 [[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png||height="401" width="400"]]
219
220 Check the network
221
222 In the command output user can see that the new interface added is eth2
223
224 Usually,user can see that the new interface added is eth2 or wwan0
225
226 === 5.3.3 3.Add the new interface to the network confiutation. ===
227
228 Enter the configuration from the command line:
229
230 {{{uci set network.lte=interface
231 uci set network.lte.proto=dhcp
232 uci set network.lte.ifname=eth2 --------->#This depend on the name of the new interface gateway add
233 uci commit network
234 uci set firewall.@zone[1].network="wan wwan wan6 lte"
235 uci commit firewall
236 /etc/init.d/network restart
237 }}}
238
239 [[~[~[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]]
240
241 Configuration
242
243 Checking Network Configurations
244
245 Command line input: ifconfig
246
247 [[~[~[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]]
248
249 Checking Network Configurations
250
251 Now, Gateway is configured to access the internet on the Lte network.
252
253 == 5.4 NCM mode ==
254
255 == 5.5 Troubleshooting ==
256
257 === 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
258
259 Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
260
261 = 6. How to reduce data traffic =
262
263 == 6.1 Introduce ==
264
265 The gateways will use the data traffic were below two places.
266
267 ~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
268
269 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.
270
271 [[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png||height="282" width="600"]]
272
273 LoRa interval time setting
274
275 2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
276
277 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.
278
279 [[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png||height="319" width="600"]]
280
281 Systrm General
282
283 [[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png||height="319" width="600"]]
284
285 Keppalive script interval time settings
286
287