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Author

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1		-XWiki.Edwin
	1	+XWiki.Xiaoling

Content

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15	15	Unencrypt Network modified from LoRaWAN
16	16
17	17
18		-
19	19	= 2. Analyze the LoRaWAN packet =
20	20
21	21
22	22	If the gateway is connected to LoRaWAN server via UDP packet fordward. We can set the server address to a UDP server to get the LoRaWAN packets.
23	23
24		-
25	25	[[image:image-20220527090005-2.png]]
26	26
27	27	UDP Server
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41	41
42	42	(((
43	43	Below is an example, from
44		-
45		-
46	46	)))
47	47
48	48	[[image:image-20220527090122-4.png]]
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50	50	Decode the packet
51	51
52	52
53		-
54	54	= 3. Difference between OTAA and ABP mode =
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56	56
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60	60	* 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
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62	62
	58	+
	59	+
63	63	= 4. Get and decode the packet =
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65	65
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69	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]]
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	69	+
	70	+
72	72	= 5. Use an unencrypt firmware =
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74	74
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81	81	[[image:image-20220527090341-5.png]]
82	82
83	83	Unencrypt packet
	83	+
84	84
85		-
86		-Note: In the new firmware with 007 stack . There is a AT Command to Disable Encryption. See below:
87		-
88		-* AT+DECRYPT=1 The payload is uploaded without encryption
89		-* AT+DECRYPT=0 Encrypt when uploading payload (default)
90		-
91		-
92	92	= 6. limitation =
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94	94
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97	97	* No security.
98	98	* No Downlink
99	99	* Only use for ABP
100		-
101		-