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9		-= 1. Introduction =
	9	+= **1. Introduction** =
10	10
11	11	This feature is to filter the unwanted LoRaWAN packets. Purpose is to save the upstream traffic especially for a 4G cellular connection. If configured, gateway will process filter for below two types of message:
12	12
...	...	@@ -13,8 +13,8 @@
13	13	* Unconfirmed Data Up
14	14	* Confirmed Data Up
15	15
16		-= 2. PKT_fwd Filter Mechanism =
17	17
	17	+= **2. PKT_FWD Filter Mechanism** =
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19	19
20	20	(% class="wikigeneratedid" id="H1.1SupportDevices" %)
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37	37
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39		-== 2.1 Filter By Fport ==
	39	+== **2.1 Filter By Fport** ==
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41	41
42	42	The Gateway FPort filter will check all the below LoRaWAN message: Unconfirmed Data Up & Confirmed Data Up. If the packet's FPort doesn't match the FPort setting, it will be dropped.
...	...	@@ -51,7 +51,7 @@
51	51	In case we set the FPort filter to 45, and the End Node send a packet with Fport other than 45, it will be dropped.
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53	53
54		-== 2.2 Filter By DevAddr ==
	54	+== **2.2 Filter By DevAddr** ==
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56	56
57	57	Gateway will use a DevAddr mask to check if the Unconfirmed Data Up & Confirmed Data Up packets match the mask . If not, gateway will drop it.
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62	62	This screenshot shows packets is dropped if DevAddr mask doesn't match.
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64		-= 3. =
65	65
	65	+= **3. FWD Filter Mechanism** =
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	67	+
67	67	(% class="wikigeneratedid" id="H1.1SupportDevices" %)
68	68	**Support Devices:**
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...	...	@@ -70,6 +70,7 @@
70	70	* Firmware Version >** dragino-lgw~-~-v5.4.1658822655** [[Firmware Download>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]
71	71	* LG308, DLOS8,LPS8,LIG16,LG308N,DLOS8N,LPS8N
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	74	+
73	73	**Filtering rules:**
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75	75	(% border="1" style="background-color:#ffffcc; color:green; width:937.222px" %)
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76	76	|=(% colspan="2" style="width: 724px;" %)Fport Filter|=(% colspan="2" style="width: 724px;" %)DevAddr Filter
77	77	|(% style="width:329px" %)**Level 0**|(% style="width:329px" %)Do nothing|(% style="width:329px" %)**Level 0**|(% style="width:329px" %)Do nothing
78	78	|(% style="width:329px" %)**Level 1**|(% style="width:329px" %)Filter only the Fport in the list|(% style="width:329px" %)**Level 1**|(% style="width:329px" %)Filter only the DevAddr in the list
79		-|(% style="width:329px" %)**Level 2**|(% style="width:329px" %)Filter Fport that are not in the database|(% style="width:329px" %)**Level 1**|(% style="width:329px" %)Filter DevAddr that are not in the database
	81	+|(% style="width:329px" %)**Level 2**|(% style="width:329px" %)Filter Fport that are not in the database|(% style="width:329px" %)**Level 2**|(% style="width:329px" %)Filter DevAddr that are not in the database
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	83	+
81	81	(((
82		-[[image:image-20220726162039-1.png||height="675" width="711"]]
	85	+[[image:image-20220726171434-6.png||height="628" width="692"]]
83	83
84		-
	87	+
	88	+**Check if the filter is running**
	89	+
	90	+[[image:image-20220726164533-3.png||height="465" width="982"]]
	91	+
	92	+
	93	+== **3.1 Filter By Fport** ==
	94	+
	95	+
	96	+
	97	+The Gateway FPort filter will check all the below LoRaWAN messages: Unconfirmed Data Up & Confirmed Data Up.
	98	+
	99	+
	100	+(% style="color:red" %)**Important Notice:**
	101	+
	102	+* By default, Fport Filter Level=0, which means do nothing
	103	+
	104	+* Fport Filter configured to Level=1. If the Fport in the list matches the Fport received by the gateway, it will be dropped.
	105	+
	106	+* Fport Filter configured to Level=2. If the Fport in the list does not match the Fport received by the gateway, it will be dropped.
	107	+
	108	+
	109	+In this case, we set Fport Filter Level=0 and add the fileter (server | fport | 0), when the gateway receives a Lorawan packet with Fport=0, it will be dropped.
	110	+
	111	+[[image:image-20220726165311-4.png||height="718" width="798"]]
	112	+
	113	+
	114	+[[image:image-20220726170532-5.png]]
	115	+
	116	+
	117	+== 3.1 Filter By DevAddr ==
	118	+
	119	+
	120	+The Gateway FPort filter will check all the below LoRaWAN messages: Unconfirmed Data Up & Confirmed Data Up.
	121	+
	122	+(% style="color:red" %)**Important Notice:**
	123	+
	124	+* By default, DevAddr Filter Level=0, which means do nothing
	125	+
	126	+* DevAddr Filter configured to Level=1. If the DevAddr in the list matches the DevAddr received by the gateway, it will be dropped.
	127	+
	128	+* DevAddr Filter configured to Level=2. If the DevAddr in the list does not match the DevAddr received by the gateway, it will be dropped.
	129	+
	130	+
	131	+In this case, we set DevAddr Filter Level=0 and add the filter (server | DevAddr | 12664787 ), when the gateway receives a Lorawan packet with DevAddr=12664787, it will be dropped.
	132	+
	133	+[[image:image-20220726171555-7.png||height="754" width="765"]]
	134	+
	135	+
	136	+[[image:image-20220726171808-8.png]]
85	85	)))