Use and Care Manual
Table Of Contents
- Contents
- 1. Hardware Setup
- 2. Specify Your Internet Settings
- 3. Connect to the Network and Access the Modem Router
- 4. Control Access to the Internet
- 5. Manage Network Settings
- View or change the WAN settings
- Set up a default DMZ server
- Change the Router’s Device Name
- Change the LAN TCP/IP settings
- Specify the IP addresses that the modem router assigns
- Disable the DHCP server feature in the modem router
- Manage reserved LAN IP addresses
- Use the WPS Wizard for WiFi connections
- Specify Basic WiFi Settings
- Change the WiFi Mode
- Change the Transmission Power Control
- Change the WiFi password or the WiFi security
- Set up a guest WiFi network
- Control the WiFi radios
- Set up a WiFi schedule
- Specify WPS settings
- Enable or disable implicit beamforming
- Enable or disable airtime fairness
- Ethernet Port Aggregation
- 6. Manage Your Modem Router
- Update the router firmware
- Change the admin password
- Enable admin password recovery
- Recover the admin password
- View information about the router and the Internet and WiFi settings
- Display the statistics of the Internet port
- Check the Internet connection status
- View and manage logs of router activity
- View devices currently on the network
- View event logs
- Monitor Internet traffic
- Manage the router configuration file
- Remotely access your router using the Nighthawk app
- Disable LED blinking or turn off LEDs
- Set your time zone
- Set the NTP Server
- Specify ReadyDLNA media server settings
- Return the router to its factory default settings
- 7. Share USB Storage Devices Attached to the Modem Router
- USB device requirements
- Connect a USB storage device to the router
- Access a storage device connected to the router from a Windows-based computer
- Map a USB device to a Windows network drive
- Access a storage device that is connected to the router from a Mac
- Enable FTP access within your network
- View network folders on a storage device
- Add a network folder on a USB storage device
- Edit a network folder on a USB storage device
- Safely remove a USB storage device
- 8. Use Dynamic DNS to Access USB Storage Devices Through the Internet
- 9. Use VPN to Access Your Network
- 10. Manage Port Forwarding and Port Triggering
- 11. Troubleshooting
- 12. Supplemental Information
How the Router Implements the Port Forwarding Rule
The following sequence shows the effects of a port forwarding rule:
1. When you type 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. Your router receives the message and finds your port forwarding rule for incoming
port 80 traffic.
3. The router changes the destination in the message to IP address 192.168.1.33 and
sends the message to that computer.
4. Your web server at IP address 192.168.1.33 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 WiFi device that sent
the web page request.
Port Triggering
Port triggering is a dynamic extension of port forwarding that is useful in these cases:
•
An application must use port forwarding to more than one local computer (but not
simultaneously).
•
An application must open incoming ports that are different from the outgoing port.
With port triggering, the router monitors traffic to the Internet from an outbound “trigger”
port that you specify. For outbound traffic from that port, the router saves the IP address
of the computer that sent the traffic. The router temporarily opens the incoming port
or ports that you specify in your rule and forwards that incoming traffic to that destination.
Port forwarding creates a static mapping of a port number or range of ports to a single
local computer. Port triggering can dynamically open ports to any computer when
needed and close the ports when they are no longer needed.
Note: If you use applications such as multiplayer gaming, peer-to-peer connections,
real-time communications such as instant messaging, or remote assistance (a feature
in Windows XP), enable Universal Plug and Play (UPnP).
User Manual115Manage Port Forwarding and
Port Triggering
Nighthawk AX6 AX2700 WiFI Cable Modem Router Model CAX30