Port Forwarding And Port Triggering; How To Set Up Port Forwarding; How To Set Up Port Forwarding For A Single Port; How To Set Up Port Forwarding For Multiple Ports - Linksys WRT 1900AC User Manual

Port Forwarding and Port Triggering

HOW TO SET UP PORT FORWARDING

Why would I use port forwarding? Port forwarding is a feature that forwards
inbound traffic from the Internet on a specific port or ports to a specific device or
port on your local network. You can set up port forwarding for the following:
• A single port (see "How to set up port forwarding for a single port" below)
• Multiple ports (see "How to set up port forwarding for multiple ports" on page 39)
• A range of ports (see "How to set up port forwarding for a range of ports" on page 40)

HOW TO SET UP PORT FORWARDING FOR A SINGLE PORT

Single port forwarding forwards inbound traffic from the Internet on a specific
port to a single device on your local network. An example of single port forwarding
would be sending inbound Web requests, typically on port 80, to a Web server.
Tip:
See the device's documentation for port and protocol information.
To set up single port forwarding, do the following:
• Follow your device's instructions for configuring it with a static IP address or use
DHCP reservation to assign it a permanent address (see "How to set up the DHCP
server on your router" on page 27).
• Log in to Linksys Smart Wi-Fi. (See "How to connect to Linksys Smart Wi-Fi" on page 7.)
• Under Router Settings, click Security.
• Click the Apps and Gaming tab.
• Click Single Port Forwarding. The Single Port Forwarding screen opens.
• Click Add a new Single Port Forwarding.
• In the Application name field, enter a descriptive name.
• In the External Port field, type the external port number (not always required).
• In the Internal Port field, type the internal port number (not always required).
• In the Protocol drop-down list, select TCP, UDP, or Both (default).
• In the Device IP# field, enter the last three digits of the IP address you have
reserved for the computer you want to forward Internet traffic to. The rest of
the IP address has already been completed for you.
• Select Enabled, then click Save. If you don't want to use port forwarding but want
to keep the information in the table, unselect the checkbox.
WRT 1900AC | Port Forwarding and Port Triggering

HOW TO SET UP PORT FORWARDING FOR MULTIPLE PORTS

Some applications require forwarding of multiple ports. VNC (Virtual Network
Computing) software that allows you to operate your computer remotely from
anywhere on the Internet is an example of an application that requires multiple
ports to be forwarded. To forward to multiple ports, create additional entries to
forward additional ports to the same IP address.
Example: You want to set up your computer so you can remotely access it using
VNC software. By default, VNC uses TCP ports 5800 and 5900.
To set up single port forwarding for multiple ports, do the following:
Make sure that the software you want to use has been installed on a networked
computer.
• Log in to Linksys Smart Wi-Fi. (See "How to connect to Linksys Smart Wi-Fi" on
page 7.)
• Set up DHCP reservation for the IP address of the computer on which you
installed the software. (See "How to set up the DHCP server on your router"
on page 27.)
• Under Router Settings, click Security.
• Click the Apps and Gaming tab.
• Click Single Port Forwarding. The Single Port Forwarding screen opens.
• Click Add a new Single Port Forwarding.
• In the Application name field, enter a descriptive name.
• Enter in the same port number for the External Port and the Internal Port.
• In the Protocol drop-down list, select TCP, UDP, or Both (default).
• In the Device IP# field, enter the last three digits of the IP address you have
reserved for the computer you want to forward Internet traffic to. The rest of
the IP address has already been completed for you.
• Select Enabled, then click Save. If you don't want to use port forwarding but want
to keep the information in the table, deselect the checkbox.
Note:
If you want to use software such as VNC on multiple computers, you will need to
reconfigure the default ports that VNC uses on each additional computer. Then,
create additional port forwarding entries for each additional computer. See your
software's documentation for help..
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