Wiki source code of Notes for cellular network connection
Version 49.1 by Kilight Cao on 2022/06/06 14:09
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1 | **Table of Contents:** | ||
2 | |||
3 | {{toc/}} | ||
4 | |||
5 | |||
6 | |||
7 | = **1. Enable Cellular Connection** = | ||
8 | |||
9 | |||
10 | //If your device has a Cellular module, you can see the below screenshot. enable the cellular connection here.// | ||
11 | |||
12 | [[image:image-20220601110850-2.png]] | ||
13 | |||
14 | **//Enable Cellular Connection//** | ||
15 | |||
16 | |||
17 | ((( | ||
18 | //If your device doesn't have a cellular module, you will see a cellular module not detected.// | ||
19 | ))) | ||
20 | |||
21 | [[image:image-20220527153544-2.png]] | ||
22 | |||
23 | |||
24 | = **2. How to Debug if Cellular connection fails** = | ||
25 | |||
26 | |||
27 | //If there is a problem with the cellular connection. Please check the below points~:// | ||
28 | |||
29 | |||
30 | == **2.1 Do you order the model with a cellular option** == | ||
31 | |||
32 | |||
33 | //Make sure you order the model with the cellular option. Can check by command or via the Web UI.// | ||
34 | |||
35 | (% class="box" %) | ||
36 | ((( | ||
37 | //root@dragino-1bbd90:~~# lsusb | ||
38 | Bus 001 Device 004: ID 2c7c:0125 ~-~-> This is the Cellular module | ||
39 | Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub | ||
40 | Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub// | ||
41 | ))) | ||
42 | |||
43 | [[image:image-20220601110748-1.png]] | ||
44 | |||
45 | |||
46 | == **2.2 Do you input the SIM card correctly** == | ||
47 | |||
48 | |||
49 | **//Below command can check if you have a SIM card inserted, or via Web UI//** | ||
50 | |||
51 | * //Make sure to Power Off when you insert the SIM card and power on the device. The device doesn't support auto-detect SIM card on power on// | ||
52 | * //Make sure you have the correct direction to insert the SIM card. Every device has an example photo in the manual for the direction.// | ||
53 | |||
54 | (% class="box" %) | ||
55 | ((( | ||
56 | //root@dragino-1dadd8:~~# **comgt -d /dev/ttyUSB3** | ||
57 | SIM ready | ||
58 | Waiting for Registration..(120 sec max) | ||
59 | Registered on Home network: "CHN-UNICOM",7 | ||
60 | Signal Quality: 10,99// | ||
61 | ))) | ||
62 | |||
63 | |||
64 | (% class="wikigeneratedid" %) | ||
65 | [[image:image-20220527153804-4.png]] | ||
66 | |||
67 | |||
68 | (% class="wikigeneratedid" %) | ||
69 | //**Note:** If the icon is missing some information, like SIM, Network, or Signal, which may be due to the display bug.// | ||
70 | |||
71 | (% class="wikigeneratedid" %) | ||
72 | //Please check the IP address is displayed and the Internet displays "OK", it works properly.// | ||
73 | |||
74 | (% class="wikigeneratedid" %) | ||
75 | [[image:image-20220527153827-5.png]] | ||
76 | |||
77 | |||
78 | == **2.3 Check dialing info** == | ||
79 | |||
80 | //run "**logread -f**" in gateway CLI。// | ||
81 | |||
82 | (% class="box" %) | ||
83 | ((( | ||
84 | Fri Feb 7 01:20:28 2020 daemon.notice pppd[29452]: pppd 2.4.7 started by root, uid 0 | ||
85 | Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Ping WAN | ||
86 | Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: Default interface is | ||
87 | Fri Feb 7 01:20:29 2020 user.notice iot_keep_alive: No internet at any interface | ||
88 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (BUSY) | ||
89 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (NO CARRIER) | ||
90 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: abort on (ERROR) | ||
91 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: report (CONNECT) | ||
92 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: timeout set to 10 seconds | ||
93 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT&F^M) | ||
94 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK) | ||
95 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: AT&F^M^M | ||
96 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK | ||
97 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it | ||
98 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (ATE1^M) | ||
99 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: expect (OK) | ||
100 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ^M | ||
101 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ATE1^M^M | ||
102 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: OK | ||
103 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: ~-~- got it | ||
104 | Fri Feb 7 01:20:29 2020 local2.info chat[29485]: send (AT+CGDCONT=1,"IP",""^M) | ||
105 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: timeout set to 30 seconds | ||
106 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (OK) | ||
107 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M | ||
108 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M | ||
109 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: OK | ||
110 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it | ||
111 | (% 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. | ||
112 | Normally the problem is with a provider, need to check if the SIM card has balance or other requirement from the cellular operator**(%%) | ||
113 | (% style="color:black" %)Fri Feb 7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT) | ||
114 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ^M | ||
115 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M | ||
116 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: CONNECT | ||
117 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: ~-~- got it | ||
118 | Fri Feb 7 01:20:30 2020 local2.info chat[29485]: send ( ^M) | ||
119 | Fri Feb 7 01:20:30 2020 daemon.info pppd[29452]: Serial connection established. | ||
120 | ))) | ||
121 | |||
122 | |||
123 | = **3. Share Cellular Network for WiFi & LAN clients** = | ||
124 | |||
125 | |||
126 | ((( | ||
127 | //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.// | ||
128 | ))) | ||
129 | |||
130 | (% class="box" %) | ||
131 | ((( | ||
132 | ((( | ||
133 | root@dragino-1d25dc:~~# cat /etc/config/firewall | ||
134 | |||
135 | config defaults | ||
136 | option syn_flood '1' | ||
137 | option input 'ACCEPT' | ||
138 | option output 'ACCEPT' | ||
139 | option forward 'REJECT' | ||
140 | config zone | ||
141 | option name 'lan' | ||
142 | list network 'lan' | ||
143 | option input 'ACCEPT' | ||
144 | option output 'ACCEPT' | ||
145 | option forward 'REJECT' | ||
146 | config zone | ||
147 | option name 'wan' | ||
148 | list network 'wan' | ||
149 | list network 'wwan' | ||
150 | list network 'wan6' | ||
151 | list network 'cellular' ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot | ||
152 | option input 'REJECT' | ||
153 | option output 'ACCEPT' | ||
154 | option forward 'ACCEPT' | ||
155 | option masq '1' | ||
156 | option mtu_fix '1' | ||
157 | config forwarding | ||
158 | option src 'lan' | ||
159 | option dest 'wan' | ||
160 | ))) | ||
161 | ))) | ||
162 | |||
163 | ((( | ||
164 | //and run **/etc/init.d/firewall reload** or reboot the device.// | ||
165 | |||
166 | = **4. Switching between Cellular and Ethernet and Wi-Fi networks** = | ||
167 | |||
168 | == **4.1. Switching between Cellular and Ethernet networks** == | ||
169 | |||
170 | |||
171 | |||
172 | == **4.2** == | ||
173 | |||
174 | |||
175 | == **4.3** == | ||
176 | |||
177 | |||
178 | ))) | ||
179 | |||
180 | = **5. How does the gateway view the International Mobile Equipment Identity (IMEI)** = | ||
181 | |||
182 | |||
183 | //Users can access the gateway CLI and run the minicom command to get the configuration interface.// | ||
184 | |||
185 | ((( | ||
186 | |||
187 | |||
188 | **//Enter the minicom command, then select the option ''serial port setup".//** | ||
189 | ))) | ||
190 | |||
191 | (% class="box infomessage" %) | ||
192 | ((( | ||
193 | root@dragino-1ef9ac:~~# minicom -s | ||
194 | ))) | ||
195 | |||
196 | [[image:image-20220527154132-6.png]] | ||
197 | |||
198 | |||
199 | And then, change the setting: | ||
200 | |||
201 | (% class="box infomessage" %) | ||
202 | ((( | ||
203 | (% style="color:black" %)**Serial Device :** (% style="color:#037691" %)**/dev/ttyModemAT** | ||
204 | |||
205 | (% style="color:black" %)**Bps/Par/Bits :**(% style="color:#037691" %)** 9600 8N1** | ||
206 | ))) | ||
207 | |||
208 | |||
209 | //**Note: Enter the corresponding letter to change the configuration, like A,B,C**// | ||
210 | |||
211 | [[image:image-20220527154154-7.png]] | ||
212 | |||
213 | |||
214 | //Enter **AT+GSN **in the interface to get the IMEI,// | ||
215 | |||
216 | // **For example (% style="color:#037691" %)860548042566627(%%)**// | ||
217 | |||
218 | (% class="box infomessage" %) | ||
219 | ((( | ||
220 | ((( | ||
221 | **AT+GSN** | ||
222 | ))) | ||
223 | ))) | ||
224 | |||
225 | [[image:image-20220527154231-8.png]] | ||
226 | |||
227 | |||
228 | = **5. How does the gateway connect to the network via a USB 4G Dongle** = | ||
229 | |||
230 | |||
231 | == **5.1 Introduction** == | ||
232 | |||
233 | |||
234 | (% style="color:red" %)**//Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware//** | ||
235 | |||
236 | ((( | ||
237 | //This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.// | ||
238 | |||
239 | |||
240 | ))) | ||
241 | |||
242 | ((( | ||
243 | //Many modes (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.// | ||
244 | ))) | ||
245 | |||
246 | ((( | ||
247 | //This is not beginner-friendly due to too many protocols.// | ||
248 | |||
249 | //For more information: [[https:~~/~~/openwrt.org/docs/guide-user/network/wan/wwan/3gdongle>>url:https://openwrt.org/docs/guide-user/network/wan/wwan/3gdongle]]// | ||
250 | |||
251 | |||
252 | ))) | ||
253 | |||
254 | == **5.2 How to use the USB Dongle at the gateway** == | ||
255 | |||
256 | |||
257 | //Most of the products can be used on the gateway, but because their protocols are different, they are not used in the same way.// | ||
258 | |||
259 | ((( | ||
260 | //For example, the Huawei-E3372/E8372 is using **Hilink mode** or **NCM mode**.// | ||
261 | ))) | ||
262 | |||
263 | (% class="box" %) | ||
264 | ((( | ||
265 | Huawei-E3372/E8372 | ||
266 | Check the (% style="color:#037691" %)**E3372**(% style="color:black" %) version to determine the mode. | ||
267 | The version numbers starting with 21 is NCM mode | ||
268 | The version numbers starting with 22 is Hilink mode | ||
269 | The E8372 only has Hilink mode | ||
270 | **~ **(% style="color:red" %)**Note: The e3372 in the vast majority of cases is Hilink mode** | ||
271 | ))) | ||
272 | |||
273 | |||
274 | == **5.3 Hilink mode** == | ||
275 | |||
276 | |||
277 | //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/]]// | ||
278 | |||
279 | |||
280 | === **5.3.1 Plugs into the device** === | ||
281 | |||
282 | |||
283 | ((( | ||
284 | //USB-Dongle plugs into the gateway USB port// | ||
285 | ))) | ||
286 | |||
287 | ((( | ||
288 | //Check the USB module via command (% style="color:#037691" %)**lsusb**// | ||
289 | ))) | ||
290 | |||
291 | ((( | ||
292 | (% style="color:red" %)//**Note: Users need to that connect to the gateway command line via ssh.**// | ||
293 | ))) | ||
294 | |||
295 | [[image:image-20220527154739-9.png]] | ||
296 | |||
297 | |||
298 | === **5.3.2 Detection of new network interfaces added** === | ||
299 | |||
300 | |||
301 | //Check network configuration command line input: // | ||
302 | |||
303 | (% class="box infomessage" %) | ||
304 | ((( | ||
305 | ((( | ||
306 | root@dragino-1ef9ac:~~# ifconfig -a | ||
307 | ))) | ||
308 | ))) | ||
309 | |||
310 | [[image:image-20220527154822-10.png]] | ||
311 | |||
312 | //In the command, the output user can see that the new interface added is (% style="color:#037691" %)**eth2**// | ||
313 | |||
314 | //Usually, the user can see that the new interface added is (% style="color:#037691" %)**eth2** (% style="color:black" %)or (% style="color:#037691" %)**wwan0**// | ||
315 | |||
316 | |||
317 | === **5.3.3 Add the new interface to the network configuration.** === | ||
318 | |||
319 | |||
320 | //Enter the configuration from the command line~:// | ||
321 | |||
322 | (% class="box" %) | ||
323 | ((( | ||
324 | uci set network.lte=interface | ||
325 | uci set network.lte.proto=dhcp | ||
326 | uci set network.lte.ifname=eth2 ~-~-~-~-~-~-~-~-->#This depend on the name of the new interface gateway add | ||
327 | uci commit network | ||
328 | uci set firewall.@zone[1].network="wan wwan wan6 lte" | ||
329 | uci commit firewall | ||
330 | /etc/init.d/network restart | ||
331 | ))) | ||
332 | |||
333 | [[image:image-20220527154937-11.png]] | ||
334 | |||
335 | |||
336 | //**Checking Network Configurations**// | ||
337 | |||
338 | //Command-line input: (% style="color:#037691" %)**ifconfig**// | ||
339 | |||
340 | [[image:image-20220527155013-12.png]] | ||
341 | |||
342 | //Now, Gateway is configured to access the internet on the LTE network.// | ||
343 | |||
344 | |||
345 | == **5.4 NCM mode** == | ||
346 | |||
347 | |||
348 | == **5.5 Troubleshooting** == | ||
349 | |||
350 | |||
351 | === **5.5.1 The USB-Dongle interface cannot obtain the IP address.** === | ||
352 | |||
353 | |||
354 | //Please try this USB dongle to access the internet on your PC, to make sure this USB dongle can normally access the internet.// | ||
355 | |||
356 | |||
357 | = **6. How to reduce data traffic** = | ||
358 | |||
359 | |||
360 | == **6.1 Reduce Status Uplink Interval** == | ||
361 | |||
362 | |||
363 | **//The gateways will use the data traffic below two places.//** | ||
364 | |||
365 | |||
366 | //1. There is the data traffic from LoRa package Forward which were the gateway status package and sensor end node uplink/downlink.// | ||
367 | |||
368 | //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.// | ||
369 | |||
370 | [[image:image-20220527155108-13.png]] | ||
371 | |||
372 | |||
373 | //2. There is the data traffic from the gateway check self-network status. by default, the gateway will check the network per 15s.// | ||
374 | |||
375 | //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.// | ||
376 | |||
377 | [[image:image-20220527155358-16.png]] | ||
378 | |||
379 | //System General interface// | ||
380 | |||
381 | |||
382 | [[image:image-20220527155229-15.png]] | ||
383 | |||
384 | //Keepalive script interval time settings// | ||
385 | |||
386 | |||
387 | == **6.2 Filter unwanted packets** == | ||
388 | |||
389 | See [[How to filter unwanted packets>>doc:Main.Filter unwanted LoRaWAN packets.WebHome]] | ||
390 | |||
391 |