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Application Example: Make a Local Web Server Public

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AC750 WiFi Router Model R6020 Application Example: Make a Local Web Server Public If you host a web server on your local network, you can use port forwarding to allow web requests from anyone on the Internet to reach your web server. To make a local web server public: 1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP address reservation. In this example, your router always gives your web server an IP address of 192.168.1.33. 2. On the Port Forwarding / Port Triggering page, configure the router to forward the HTTP service to the local address of your web server at 192.168.1.33. HTTP (port 80) is the standard protocol for web servers. How the Router Implements the Port Forwarding Rule The following sequence shows the effects of a port forwarding rule: 1. When you enter the URL www.example.com in your browser, the browser sends a web page request message with the following destination information: • Destination address. The IP address of www.example.com, which is the address of your router. • Destination port number. 80, which is the standard port number for a web server process. 2. The router receives the message and finds your port forwarding rule for incoming port 80 traffic. 3. The router changes the destination IP address in the message to 192.168.1.123 and sends the message to that computer. 4. Your web server at IP address 192.168.1.123 receives the request and sends a reply message to your router. 5. Your router performs Network Address Translation (NAT) on the source IP address and sends the reply through the Internet to the computer or mobile device device that sent the web page request. Manage Port Forwarding and 115 Port Triggering User Manual

Section	Page
Contents	3
1. Hardware Overview of the Router	8
Unpack Your Router	9
LED Descriptions	10
Ports, Buttons, and Connectors on the Back Panel	10
Router Label	12
Position the Router	12
Cable Your Router	13
2. Connect to the Network and Access the Router	15
Connect to the Router	16
Connect to the Router Through an Ethernet Cable	16
Join the WiFi Network of the Router	16
Manual Method	16
Wi-Fi Protected Setup Method	17
Types of Logins	18
Use a Web Browser to Access the Router	18
Automatic Internet Setup	18
Log In to the Router	20
Change the Language	20
3. Specify Your Internet Settings	21
Use the Internet Setup Wizard	22
Manually Set Up the Internet Connection	22
Specify an Internet Connection Without a Login	22
Specify an Internet Connection That Uses a Login and PPPoE Service	24
Specify an Internet Connection That Uses a Login and PPTP Service	26
Specify an Internet Connection That Uses a Login and L2TP Service	27
Specify an IPv6 Internet Connection	29
IPv6 Internet Connections and IPv6 Addresses	29
Use Auto Detect for an IPv6 Internet Connection	30
Use Auto Config for an IPv6 Internet Connection	31
Set Up an IPv6 6to4 Tunnel Internet Connection	33
Set Up an IPv6 Pass-Through Internet Connection	34
Set Up a Fixed IPv6 Internet Connection	35
Set Up an IPv6 DHCP Internet Connection	36
Set Up an IPv6 PPPoE Internet Connection	37
Manage the MTU Size	39
MTU Concepts	39
Change the MTU Size	40
4. Control Access to the Internet	42
Enable access control to allow or block access to the Internet	43
Manage network access control lists	44
Use Keywords to Block Internet Sites	45
Set Up Blocking	45
Remove a Keyword or Domain From the Blocked List	46
Remove All Keywords and Domains From the Blocked List	47
Specify a Trusted Computer	47
Set Up a Schedule for Keyword Blocking and Outbound Firewall Rules	48
5. Manage the Basic WiFi Network Settings	50
Manage the Basic WiFi Settings and WiFi Security of the Main Network	51
View or Change the Basic WiFi Settings and WiFi Security Settings	51
Configure WEP Legacy WiFi Security	57
Configure WPA/WPA2 Enterprise WiFi Security	59
Use WPS to Add a Device to the WiFi Network	61
Use WPS With the Push Button Method	61
Use WPS With the PIN Method	62
Manage the Basic WiFi Settings and WiFi Security of the Guest Network	63
Enable or Disable the WiFi Radios	67
6. Manage the WAN and LAN Network Settings	68
View or Change WAN Settings	69
Set Up a Default DMZ Server	70
Manage IGMP Proxying	71
Manage VPN Pass-Through	71
Manage NAT Filtering	72
Manage the SIP Application-Level Gateway	73
Manage the LAN IP Address Settings	74
Manage the Router Information Protocol Settings	75
Manage the DHCP Server Address Pool	76
Manage Reserved LAN IP Addresses	77
Reserve a LAN IP Address	77
Change a Reserved IP Address	78
Remove a Reserved IP Address Entry	78
Disable the Built-In DHCP Server	79
Change the Router’s Device Name	80
Set Up and Manage Custom Static Routes	81
Set Up a Static Route	81
Change a Static Route	83
Remove a Static Route	83
Set Up a Bridge for a Port Group or VLAN Tag Group	84
Set Up a Bridge for a Port Group	84
Set Up a Bridge for a VLAN Tag Group	85
Improve Network Connections With Universal Plug-N-Play	87
7. Manage the Router	89
Update the Firmware of the Router	90
Check for New Firmware and Update the Router	90
Manually Upload New Firmware and Update the Router	91
Change the admin Password	92
Set Up Password Recovery	93
Recover the admin Password	94
Manage the Configuration File of the Router	94
Back Up the Settings	94
Restore the Settings	95
Return the Router to Its Factory Default Settings	96
Use the Reset Button	96
Erase the Settings	97
View the Status and Statistics of the Router	98
View Information About the Router and the Internet and WiFi Settings	98
Display Internet Port Statistics	99
Check the Internet Connection Status	100
Manage the Activity Log	101
View, Email, or Clear the Logs	101
Specify Which Activities Are Logged	102
View Devices Currently on the Network	102
8. Manage the Advanced WiFi Features	104
Set Up a WiFi Schedule	105
Manage the WPS Settings	106
Manage Advanced WiFi Settings	107
Use the Router as a WiFi Access Point Only	108
9. Manage Port Forwarding and Port Triggering	110
Manage Port Forwarding to a Local Server for Services and Applications	111
Forward Incoming Traffic for a Default Service or Application	111
Add a Port Forwarding Rule With a Custom Service or Application	112
Change a Port Forwarding Rule	113
Remove a Port Forwarding Rule	114
Application Example: Make a Local Web Server Public	115
How the Router Implements the Port Forwarding Rule	115
Manage Port Triggering for Services and Applications	116
Add a Port Triggering Rule	116
Change a Port Triggering Rule	118
Remove a Port Triggering Rule	118
Specify the Time-Out for Port Triggering	119
Disable Port Triggering	120
Application Example: Port Triggering for Internet Relay Chat	120
10. Troubleshooting	122
Reboot the Router From Its Web Interface	123
Quick Tips	123
Sequence to Restart Your Network	123
Check Ethernet Cable Connections	124
WiFi Settings	124
Network Settings	124
Troubleshoot With the LEDs	124
Standard LED Behavior When the Router Is Powered On	124
Power LED Is Off or Blinking	125
Power LED Stays Amber	125
Internet or Ethernet LEDs Are Off	125
WiFi LED Is Off	126
You Cannot Log In to the Router	126
You Cannot Access the Internet	127
Check the WAN IP Address	127
Troubleshoot PPPoE	128
Troubleshoot Internet Browsing	129
Changes Are Not Saved	130
Troubleshoot WiFi Connectivity	130
Troubleshoot Your Network Using the Ping Utility	131
Test the LAN Path to Your Router	131
Test the Path From Your Computer to a Remote Device	132
A. Supplemental Information	133
Factory Settings	134