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Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - Port Range Forwarding

Dual-Band Wireless A+G Broadband Router

HTTP

(HyperText Transport Protocol). The communications protocol used to connect to servers on the World Wide

Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client

web browser.

POP3

(Post Office Protocol 3). A standard mail server commonly used on the Internet. It provides a message store

that holds incoming e-mail until users log on and download it. POP3 is a simple system with little selectivity. All

pending messages and attachments are downloaded at the same time. POP3 uses the SMTP messaging protocol.

NNTP

(Network News Transfer Protocol). The protocol used to connect to Usenet groups on the Internet. Usenet

newsreaders support the NNTP protocol.

SNMP

(Simple Network Management Protocol). A widely used network monitoring and control protocol. Data is

passed from SNMP agents, which are hardware and/or software processes reporting activity in each network

device (hub, router, bridge, etc.) to the workstation console used to oversee the network. The agents return

information contained in a MIB (Management Information Base), which is a data structure that defines what is

obtainable from the device and what can be controlled (turned off, on, etc.).

Start/End

. This is the port range. Enter the port number or range of external ports used by the server or Internet

application. Check with the software documentation of the Internet application for more information.

Protocol

. Select the protocol(s) used for this application,

TCP

and/or

UDP

.

To IP Address

. For each application, enter the IP address of the PC running the specific application.

Enabled

. Click the

Enabled

checkbox to enable port forwarding for the relevant application.

Change these settings as described here and click the

Save Settings

button to apply your changes or

Cancel

Changes

to cancel your changes. Help information is shown on the right-hand side of the screen. For additional

information, click

More

.

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Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router

The Applications & Gaming Tab - Port Range Triggering

Dual-Band Wireless A+G Broadband Router

The Applications & Gaming Tab - Port Range Triggering

The

Port Range Triggering

screen allows the Router to watch outgoing data for specific port numbers. The IP

address of the computer that sends the matching data is remembered by the Router, so that when the requested

data returns through the Router, the data is pulled back to the proper computer by way of IP address and port

mapping rules.

Port Range Triggering

Application Name

. Enter the application name of the trigger.

Triggered Range

. For each application, list the triggered port number range. Check with the Internet application

documentation for the port number(s) needed. In the first field, enter the starting port number of the Triggered

Range. In the second field, enter the ending port number of the Triggered Range.

Forwarded Range

. For each application, list the forwarded port number range. Check with the Internet

application documentation for the port number(s) needed. In the first field, enter the starting port number of the

Forwarded Range. In the second field, enter the ending port number of the Forwarded Range.

Enabled

. Click the

Enabled

checkbox to enable port range triggering for the relevant application.

Change these settings as described here and click the

Save Settings

button to apply your changes or

Cancel

Changes

to cancel your changes. Help information is shown on the right-hand side of the screen. For additional

information, click

More

.

Figure 5-22: Applications and Gaming Tab -

Port Triggering

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Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - DMZ

Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - DMZ

The DMZ feature allows one network user to be exposed to the Internet for use of a special-purpose service such

as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port

Range Forwarding feature is more secure because it only opens the ports you want to have opened, while DMZ

hosting opens all the ports of one computer, exposing the computer to the Internet.

Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static

IP address assigned to it because its IP address may change when using the DHCP function.

DMZ

To expose one PC, select

Enabled

.

Internet Source IP Address

. If you want to allow any Internet IP address to access the exposed computer, select

Any IP Address

. If you want to allow a specific IP address or range of IP addresses to access the exposed

computer, select the second option and enter the IP address or range of IP addresses in the fields provided.

Destination Host IP Address

. Enter the IP address of the computer you want to expose.

Change these settings as described here and click the

Save Settings

button to apply your changes or

Cancel

Changes

to cancel your changes. Help information is shown on the right-hand side of the screen. For additional

information, click

More

.

Figure 5-23: Applications and Gaming Tab - DMZ

33

Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - QoS

Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - QoS

QoS (Quality of Service) manages information as it is transmitted and received. It ensures better service to high-

priority types of Internet traffic, which may involve demanding, real-time applications, such as

videoconferencing. QoS can also prioritize traffic for a specific device or the Router’s LAN ports.

Qos (Quality of Service)

There are three types of QoS available, Application Port Priority, MAC Address Priority, and LAN Port Priority.

Application Port Priority

Depending on the settings of the

QoS

screen, this feature will assign information a specific priority for up to five

preset applications and up to five additional applications that you specify.

Application Name

. Each drop-down menu offers a choice of ten preset applications (select

None

if you do not

want to use any of the preset applications). Select up to five preset applications. For custom applications, enter

the name of your application in one of the available fields.

The preset applications are among the most widely used Internet applications. They include the following:

FTP

(File Transfer Protocol). A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For

example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the

web server using FTP.

Telnet

. A terminal emulation protocol commonly used on Internet and TCP/IP-based networks. It allows a user at

a terminal or computer to log onto a remote device and run a program.

SMTP

(Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that

defines the message format and the message transfer agent (MTA), which stores and forwards the mail.

DNS

(Domain Name System). The way that Internet domain names are located and translated into IP addresses. A

domain name is a meaningful and easy-to-remember “handle” for an Internet address.

TFTP

(Trivial File Transfer Protocol). A version of the TCP/IP FTP protocol that has no directory or password

capability.

Finger

. A UNIX command widely used on the Internet to find out information about a particular user, such as a

telephone number, whether the user is currently logged on, and the last time the user was logged on. The person

being “fingered” must have placed his or her profile on the system in order for the information to be available.

Fingering requires entering the full user@domain address.

Figure 5-24: Applications and Gaming Tab - QOS

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Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router

The Applications and Gaming Tab - QoS

Dual-Band Wireless A+G Broadband Router

HTTP

(HyperText Transport Protocol). The communications protocol used to connect to servers on the World Wide

Web. Its primary function is to establish a connection with a web server and transmit HTML pages to the client

web browser.

POP3

(Post Office Protocol 3). A standard mail server commonly used on the Internet. It provides a message store

that holds incoming e-mail until users log on and download it. POP3 is a simple system with little selectivity. All

pending messages and attachments are downloaded at the same time. POP3 uses the SMTP messaging protocol.

NNTP

(Network News Transfer Protocol). The protocol used to connect to Usenet groups on the Internet. Usenet

newsreaders support the NNTP protocol.

SNMP

(Simple Network Management Protocol). A widely used network monitoring and control protocol. Data is

passed from SNMP agents, which are hardware and/or software processes reporting activity in each network

device (hub, router, bridge, etc.) to the workstation console used to oversee the network. The agents return

information contained in a MIB (Management Information Base), which is a data structure that defines what is

obtainable from the device and what can be controlled (turned off, on, etc.).

Priority

. Select one of these priority levels:

Highest

,

High

,

Above Normal

, or

Normal

.

Port

. For preset applications, the port number is automatically displayed. For custom applications, enter the

appropriate port number in the

Port

field.

Enabled

. Click the

Enabled

checkbox to enable QoS for the relevant application.

MAC Address Priority

Depending on the settings of the

QoS

screen, this feature will assign a specific priority for up to five network

devices.

Name

. Enter the name of your network device.

Priority

. Select one of these priority levels:

Highest

,

High

,

Above Normal

, or

Normal

.

MAC. Enter the MAC address of the device.

Enabled

. Click the

Enabled

checkbox to enable QoS for the appropriate MAC address.

LAN Port Priority

QoS allows you to prioritize performance for the Router’s LAN Ports (1-4). It does not require support from your

ISP because the prioritized ports are LAN ports going out to your network.