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...	...	@@ -78,9 +78,9 @@
78	78	Fri Feb  7 01:20:30 2020 local2.info chat[29485]: AT+CGDCONT=1,"IP",""^M^M
79	79	Fri Feb  7 01:20:30 2020 local2.info chat[29485]: OK
80	80	Fri Feb  7 01:20:30 2020 local2.info chat[29485]:  ~-~- got it
81		-(% 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.
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		-(% style="color:black" %)Fri Feb  7 01:20:30 2020 local2.info chat[29485]: expect (CONNECT)
	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	84	Fri Feb  7 01:20:30 2020 local2.info chat[29485]: ^M
85	85	Fri Feb  7 01:20:30 2020 local2.info chat[29485]: ATD*99#^M^M
86	86	Fri Feb  7 01:20:30 2020 local2.info chat[29485]: CONNECT
...	...	@@ -95,9 +95,7 @@
95	95
96	96	root@dragino-1d25dc:~~# cat /etc/config/firewall
97	97
98		-(% class="box" %)
99		-(((
100		-config defaults
	98	+{{{config defaults
101	101	option syn_flood '1'
102	102	option input 'ACCEPT'
103	103	option output 'ACCEPT'
...	...	@@ -107,13 +107,13 @@
107	107	list network 'lan'
108	108	option input 'ACCEPT'
109	109	option output 'ACCEPT'
110		- option forward 'REJECT'
	108	+ option forward 'REJECT'
111	111	config zone
112	112	option name 'wan'
113	113	list network 'wan'
114	114	list network 'wwan'
115	115	list network 'wan6'
116		- list network 'cellular'   ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--> Add this line and reboot
	114	+ list network 'cellular' -----------------> Add this line and reboot
117	117	option input 'REJECT'
118	118	option output 'ACCEPT'
119	119	option forward 'ACCEPT'
...	...	@@ -122,7 +122,7 @@
122	122	config forwarding
123	123	option src 'lan'
124	124	option dest 'wan'
125		-)))
	123	+}}}
126	126
127	127	and run **/etc/init.d/firewall reload** or reboot the device.
128	128
...	...	@@ -132,22 +132,21 @@
132	132
133	133	Select "**Serial Port Setup**":
134	134
135		-(% class="box infomessage" %)
136		-(((
137		-root@dragino-1ef9ac:~~# minicom -s
138		-)))
	133	+{{{root@dragino-1ef9ac:~# minicom -s
	134	+}}}
139	139
140	140	[[image:https://wiki.dragino.com/images/thumb/0/05/4G-1.png/400px-4G-1.png||height="265" width="400"]]
141	141
142	142	Enter the minicom command
143	143
	140	+
144	144	Access the serial port of the 4G module
145	145
146	146	Serial port setup is as follows:
147	147
148		-**Serial Device :** (% style="color:#037691" %)**/dev/ttyModemAT**
	145	+**Serial Device :** /dev/ttyModemAT
149	149
150		-**Bps/Par/Bits :(% style="color:#037691" %) 9600 8N1 or 115200 8N1(%%)**
	147	+**Bps/Par/Bits :** 9600 8N1 or 115200 8N1
151	151
152	152	[[image:https://wiki.dragino.com/images/thumb/c/cb/EC25_1.png/400px-EC25_1.png||height="164" width="400"]]
153	153
...	...	@@ -156,22 +156,21 @@
156	156
157	157	Enter AT+GSN in the serial port to view the IMEI
158	158
159		-For example:** (% style="color:#037691" %)860548042566627(%%)**
	156	+For example: 860548042566627
160	160
161		-(% class="box infomessage" %)
162		-(((
163		-AT+GSN
164		-)))
	158	+{{{AT+GSN
	159	+}}}
165	165
166	166	[[image:https://wiki.dragino.com/images/thumb/6/66/4G-3.png/400px-4G-3.png||height="286" width="400"]]
167	167
168	168	Enter the AT command
169	169
	165	+
170	170	= 5. How does the gateway connect to the network via a USB 4G Dongle =
171	171
172	172	== 5.1 Introduction ==
173	173
174		-(% style="color:red" %)**Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware**
	170	+Prerequisite: Requires a USB 4G Dongle and a supported gateway firmware
175	175
176	176	This introduces a setup and configured gateway for using a USB 3g/UMTS-modem for WAN connection.
177	177
...	...	@@ -186,15 +186,13 @@
186	186
187	187	For example, the Huawei-E3372/E8372 is using Hilink mode or NCM mode.
188	188
189		-(% class="box" %)
190		-(((
191		- Huawei-E3372/E8372
192		- Check (% style="color:#037691" %)E3372(% style="color:black" %) version to determine the mode.
	185	+{{{ Huawei-E3372/E8372
	186	+ Check E3372 version to determine the mode.
193	193	The version numbers starting with 21 is NCM mode
194	194	The version numbers starting with 22 is Hilink mode
195	195	The E8372 only have Hilink mode
196		- (% style="color:#037691" %)~Note：The e3372 in the vast majority of cases is Hilink mode
197		-)))
	190	+ Note：The e3372 in the vast majority of cases is Hilink mode
	191	+}}}
198	198
199	199	== 5.3 Hilink mode ==
200	200