Skip to Content
Version 1.2 by Xiaoling on 2022/05/14 09:12
Hide last authors
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
81 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: send (ATD*99#^M)      ~-~-~-~--> In case the dialling process already reach here.
82 Normally the problem is with a provider, need to check if the SIM card has balance or other requirement from the cellular operator
83 Fri Feb  7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
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
98 {{{config defaults
99 option syn_flood '1'
100 option input 'ACCEPT'
101 option output 'ACCEPT'
102 option forward 'REJECT'
103 config zone
104 option name 'lan'
105 list network 'lan'
106 option input 'ACCEPT'
107 option output 'ACCEPT'
108 option forward 'REJECT'
109 config zone
110 option name 'wan'
111 list network 'wan'
112 list network 'wwan'
113 list network 'wan6'
114 list network 'cellular' -----------------> Add this line and reboot
115 option input 'REJECT'
116 option output 'ACCEPT'
117 option forward 'ACCEPT'
118 option masq '1'
119 option mtu_fix '1'
120 config forwarding
121 option src 'lan'
122 option dest 'wan'
123 }}}
124
125 and run **/etc/init.d/firewall reload** or reboot the device.
126
127 = 4. How does the gateway view the International Mobile Equipment Identity (IMEI) =
128
129 Use SSH to access the gateway configuration page and run the minicom command
130
131 Select "**Serial Port Setup**":
132
133 {{{root@dragino-1ef9ac:~# minicom -s
134 }}}
135
136 [[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png||height="265" width="400"]]
137
138 Enter the minicom command
139
140
141 Access the serial port of the 4G module
142
143 Serial port setup is as follows:
144
145 **Serial Device :** /dev/ttyModemAT
146
147 **Bps/Par/Bits :** 9600 8N1 or 115200 8N1
148
149 [[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png||height="164" width="400"]]
150
151 Configuring USB Ports
152
153
154 Enter AT+GSN in the serial port to view the IMEI
155
156 For example: 860548042566627
157
158 {{{AT+GSN
159 }}}
160
161 [[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png||height="286" width="400"]]
162
163 Enter the AT command
164
165
166 = 5. How does the gateway connect to the network via a USB 4G Dongle =
167
168 == 5.1 Introduction ==
169
170 Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
171
172 This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
173
174 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]]
175
176 This is not beginner-friendly due to too many protocols.
177
178
179 == 5.2 How to use the USB-Dongle at the gateway ==
180
181 Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.
182
183 For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
184
185 {{{ Huawei-E3372/E8372
186 Check E3372 version to determine the mode.
187 The version numbers starting with 21 is NCM mode
188 The version numbers starting with 22 is Hilink mode
189 The E8372 only have Hilink mode
190 Note：The e3372 in the vast majority of cases is Hilink mode
191 }}}
192
193 == 5.3 Hilink mode ==
194
195 Gateway upgrade to the specified firmware:
196
197 [[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/]]
198
199 === 5.3.1 1.Plugs into the device ===
200
201 USB-Dongle plugs into the gateway USB port
202
203 Check the USB module via comman lsusb
204
205 Note : User neet to do that connect gateway command line via ssh.
206
207 [[image:https://wiki.dragino.com/images/2/25/Usb-4g.png||height="63" width="554"]]
208
209 Checking USB Ports
210
211 === 5.3.2 2.Detection of new network interfaces added ===
212
213 Command line input: ifconfig -a
214
215 [[image:https://wiki.dragino.com/images/thumb/a/a0/Usb-4g-1.png/400px-Usb-4g-1.png||height="401" width="400"]]
216
217 Check the network
218
219 In the command output user can see that the new interface added is eth2
220
221 Usually,user can see that the new interface added is eth2 or wwan0
222
223 === 5.3.3 3.Add the new interface to the network confiutation. ===
224
225 Enter the configuration from the command line:
226
227 {{{uci set network.lte=interface
228 uci set network.lte.proto=dhcp
229 uci set network.lte.ifname=eth2 --------->#This depend on the name of the new interface gateway add
230 uci commit network
231 uci set firewall.@zone[1].network="wan wwan wan6 lte"
232 uci commit firewall
233 /etc/init.d/network restart
234 }}}
235
236 [[~[~[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]]
237
238 Configuration
239
240 Checking Network Configurations
241
242 Command line input: ifconfig
243
244 [[~[~[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]]
245
246 Checking Network Configurations
247
248 Now, Gateway is configured to access the internet on the Lte network.
249
250 == 5.4 NCM mode ==
251
252 == 5.5 Troubleshooting ==
253
254 === 5.5.1 The USB-Dongle interface cannot obtain the IP address. ===
255
256 Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.
257
258 = 6. How to reduce data traffic =
259
260 == 6.1 Introduce ==
261
262 The gateways will use the data traffic were below two places.
263
264 ~1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.
265
266 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.
267
268 [[image:https://wiki.dragino.com/images/thumb/b/bc/LoRa_interval_time_setting.png/600px-LoRa_interval_time_setting.png||height="282" width="600"]]
269
270 LoRa interval time setting
271
272 2. There is the data traffic from the gateway check self-network status. by default, the gateway will check network per 15s.
273
274 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.
275
276 [[image:https://wiki.dragino.com/images/thumb/4/49/Systrm_General.png/600px-Systrm_General.png||height="319" width="600"]]
277
278 Systrm General
279
280 [[image:https://wiki.dragino.com/images/thumb/f/f0/Set_time_interval.png/600px-Set_time_interval.png||height="319" width="600"]]
281
282 Keppalive script interval time settings
283
284