<
From version < 17.2 >
edited by Xiaoling
on 2023/04/11 15:20
To version < 17.3
edited by Xiaoling
on 2023/04/19 17:49
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -15,7 +15,6 @@
15 15  Unencrypt Network modified from LoRaWAN
16 16  
17 17  
18 -
19 19  = 2. Analyze the LoRaWAN packet =
20 20  
21 21  
... ... @@ -55,21 +55,23 @@
55 55  
56 56  There are two mode for End Node:
57 57  
58 -* OTAA: Over the air activation. In this mode, the end node will send a Join Request to server, server will reply with a Join Accept and the end node will parse this Join Accept message to get the Dev Addr / APP Session Key(AppSkey / Network Session Key(NwkSKey). Because the AppSkey and NwkSkey is dynamic, OTAA mode provide more security.
59 -* ABP: Activation by personalization. There is no hand-shake with LoRaWAN server for activition. The end node will use fix Dev Addr / APP Session Key(AppSkey / Network Session Key(NwkSKey) to upload the packet. So the packet can be decode if someone know these fix keys
57 +* (% style="color:blue" %)**OTAA:**(%%) Over the air activation. In this mode, the end node will send a Join Request to server, server will reply with a Join Accept and the end node will parse this Join Accept message to get the Dev Addr / APP Session Key(AppSkey / Network Session Key(NwkSKey). Because the AppSkey and NwkSkey is dynamic, OTAA mode provide more security.
60 60  
59 +* (% style="color:blue" %)**ABP:**(%%) Activation by personalization. There is no hand-shake with LoRaWAN server for activition. The end node will use fix Dev Addr / APP Session Key(AppSkey / Network Session Key(NwkSKey) to upload the packet. So the packet can be decode if someone know these fix keys
61 61  
62 62  
62 +
63 63  = 4. Get and decode the packet =
64 64  
65 65  
66 66  According to above, it is possible to get the payload from sensor without LoRaWAN server:
67 67  
68 -1. Setting the end node to ABP mode
69 -1. Add decode program and add the keys of the sensor. So to get the payload. There is an example for such application, see [[Communication with ABP End Node>>Communicate with ABP End Node without LoRaWAN Network Server --- LG308]].
68 +* Setting the end node to ABP mode
70 70  
70 +* Add decode program and add the keys of the sensor. So to get the payload. There is an example for such application, see [[Communication with ABP End Node>>Communicate with ABP End Node without LoRaWAN Network Server --- LG308]].
71 71  
72 72  
73 +
73 73  = 5. Use an unencrypt firmware =
74 74  
75 75  
... ... @@ -84,20 +84,25 @@
84 84  Unencrypt packet
85 85  
86 86  
87 -Note: In some device's firmware . There is a AT Command to Disable Encryption. See below:
88 +(% style="color:red" %)**Note: In some device's firmware . There is a AT Command to Disable Encryption. See below:**
88 88  
89 -* AT+DECRYPT=1 The payload is uploaded without encryption
90 -* AT+DECRYPT=0 Encrypt when uploading payload (default)
90 +* (% style="color:blue" %)**AT+DECRYPT=1**(%%)  The payload is uploaded without encryption
91 91  
92 +* (% style="color:blue" %)**AT+DECRYPT=0  **(%%) Encrypt when uploading payload (default)
92 92  
93 93  
95 +
94 94  = 6. limitation =
95 95  
96 96  
97 97  * None standard LoRaWAN protocol, it is not compatible with LoRaWAN server.
100 +
98 98  * No device management / ADR management defined in LoRaWAN protocol
102 +
99 99  * No security.
104 +
100 100  * No Downlink
106 +
101 101  * Only use for ABP
102 102  
103 103  
Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0