TRENDnet WRT-390L User manual

2.4GHz Wireless 802.11n(DRAFT) Giga Router
WRT-390L
Rev 0.7
User Manual

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Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this equipment.
IMPORTANT NOTE:
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
The availability of some specific channels and/or operational frequency bands are country
dependent and are firmware programmed at the factory to match the intended destination.
The firmware setting is not accessible by the end user.
Copyright
This publication, including all photographs, illustrations and software, is protected under interna-
tional copyright laws, with all rights reserved. Neither this manual, nor any of the material con-
tained herein, may be reproduced without written consent of the author.
Copyright 2006

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Trademark recognition
All product names used in this manual are the properties of their respective owners and are
acknowledged.

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Table of Contents
Getting Started with the WRT-390L -------------------------------------3
PackageContents
Minimum System Requirements
Wireless LAN Networking ------------------------------------------- 5
Introduction
Features
Hardware Overview --------------------------------------------- 10
LED Indications
Rear Panel
Installation Considerations
GettingStarted
Using the Configuration Menu -----------------------------------12
Network
Wireless
Advanced
Administrator

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1. Getting Started with the WRT-390L
Congratulations on purchasing the WRT-390L! This manual provides information for setting up
and configuring the WRT-390L. This manual is intended for both home users and professionals.
The following conventions are used in this manual:
THE NOTE SYMBOL INDICATES ADDITIONAL INFORMATION ON THE
TOPIC AT HAND.
THE TIP SYMBOL INDICATES HELPFULL INFORMATION AND TIPS TO
IMPROVE YOUR NETWORK EXPERIENCE.
THE CAUTION SYMBOL ALERTS YOU TO SITUATIONS THAT MAY
DEGRADE YOUR NETWORKING EXPERIENCE OR COMPROMISE
LIKE NOTES AND TIPS, THE IMPORTANT SYMBOL INDICATES
INFORMATION THAT CAN IMPROVE NETWORKING. THIS INFORMATION
SHOULD NOT BE OVERLOOKED.

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1.1 Package Contents
 WRT-390L 2.4GHz Wireless 802.11n(DRAFT) Giga Router
 CAT-5 Ethernet Cable
 Power Adapter (12V, 1A)
 CD-ROM with Manual
 Quick Installation Guide
Using a power supply with a different voltage than the one included with your
product will cause damage and void the warranty for this product.
1.2 Minimum System Requirements
 Ethernet-Based Cable or DSL Modem
 Computers with Windows, Macintosh, or Linux-based operating systems with an installed
Ethernet adapter and CD-ROM Drive
 Internet Explorer Version 6.0 or Netscape Navigator Version 7.0 and Above

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2. Wireless LAN Networking
This section provides background information on wireless LAN networking technology. Consult
the Glossary for definitions of the terminology used in this section.
THE INFORMATION IN THIS SECTION IS FOR YOUR REFERENCE. CHANGING
NETWORK SETTINGS AND PARTICULARLY SECURITY SETTTINGS SHOULD ONLY
BE DONE BY AN AUTHORIZED ADMINISTRATOR.
Transmission Rate (Transfer Rate)
The WRT-390L provides various transmission (data) rate options for you to select. In most
networking scenarios, the factory default Best (automatic) setting proves the most efficient. This
setting allows your WRT-390L to operate at the maximum transmission (data) rate. When the
communication quality drops below a certain level, the WRT-390L automatically switches to a
lower transmission (data) rate. Transmission at lower data speeds is usually more reliable.
However, when the communication quality improves again, the WRT-390Lgradually increases the
transmission (data) rate again until it reaches the highest available transmission rate.
Types of Wireless Networks
Wireless LAN networking works in either of the two modes: ad-hoc and infrastructure. In infra-
structure mode, wireless devices communicate to a wired LAN via access points. Each access
point and its wireless devices are known as a Basic Service Set (BSS). An Extended Service Set
(ESS) is two or more BSSs in the same subnet. In ad hoc mode (also known as peer-to-peer
mode), wireless devices communicate with each other directly and do not use an access point.
This is an Independent BSS (IBSS).
To connect to a wired network within a coverage area using access points, set the operation mode
to Infrastructure (BSS). To set up an independent wireless workgroup without an access point, use
Ad-hoc (IBSS) mode.
AD-HOC (IBSS) NETWORK
Ad-hoc mode does not require an access point or a wired network. Two or more wireless stations
communicate directly to each other. An ad-hoc network may sometimes be referred to as an
Independent Basic Service Set (IBSS).
To set up an ad-hoc network, configure all the stations in ad-hoc mode. Use the same SSID and
channel for each station.

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When a number of wireless stations are connected using a single access point, you have a Basic
Service Set (BSS).
In the ESS diagram below, communication is done through the access points, which relay data
packets to other wireless stations or devices connected to the wired network. Wireless stations
can then access resources, such as a printer, on the wired network.

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In an ESS environment, users are able to move from one access point to another without losing the
connection. In the diagram below, when the user moves from BSS (1) to BSS (2) the WLAN client
devices automatically switches to the channel used in BSS (2).
Roaming in an ESS network diagram

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2.1 Introduction
The WRT-390L 2.4GHz Wireless 802.11n(DRAFT) Giga Router is an high-performance, wireless router that
supports high-speed wireless networking at home, at work or in public places.
Unlike most routers, the WRT-390L provides data transfers at up to 300Mbps when using 11n (Draft)
connection. This router is also back compatible with 802.11g or 11b devices. This means that you do not
need to change your entire network to maintain connectivity. You may sacrifice some of 11n’s (Draft) speed
when you mix 11n (Draft) and 11b/g devices, but you will not lose the ability to communicate when you
incorporate the 11n (Draft) standard into your 11b/g network. You may choose to slowly change your
network by gradually replacing the 11b/g devices with 11n (Draft) devices.
2.2 Features
 Supports draft IEEE 802.11n & 11b/g 2.4GHz wireless Local Area Network (WLAN) application
 2.412 to 2.462GHz frequency band operation
 Compliant with IEEE 802.3, 802.3u & 802.3ab standards
 Support OFDM and CCK modulation
 High-Speed up to 300Mbps Data Rate using IEEE 802.11n (draft) connection
 Supports Cable/DSL Modems with Dynamic IP, Static IP, PPPoE, PPTP, L2TP Connection Types
 Firewall features Network Address Translation (NAT)
 Traffic Control with Virtual Server and DMZ
 UPnP (Universal Plug & Play) and ALGs Support for Internet applications such as Email, FTP,
Gaming, Streaming, Net Meeting, Telnet, and more
 Provides Additional Security of Enable/Disable SSID, Internet Access Control (IP/Port range
blocking)
 Supports IPSec, L2TP and PPTP VPN Pass-Through Sessions
 Flash Memory for Firmware Upgrade, Save/Restore Settings
 Easy Management via Web Browser (HTTP) and Remote Management
 Supports 64/128-bit WEP, WPA/WPA2, and WPA-PSK/WPA2-PSK.
 Easy wireless setup via PBC or PIN of WiFi Protected Setup
 Work with IE6.0 and above, web browsers.
 Support 4 x 10/100/1000Mbps Auto-MDIX LAN Port and 1 x 10/100/1000Mbps WAN Port (Internet)
 Built-in 3 External Antennas to support high speed performance and great coverage

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3. Hardware Overview
3.1 LED Indications: (from bottom to top)
 PWR
 WAN
 LAN1
 LAN2
 LAN3
 LAN4
 Wireless
 WPS
 Reserve
 Reserve
3.2 Rear panel: (from bottom to top)
 DC-IN
 RESET
 WAN
 LAN1
 LAN2
 LAN3
 LAN4

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3.3 Installation Considerations
The WRT-390L 2.4GHz Wireless 802.11n(DRAFT) Giga Router lets you access your network, using a
wireless connection, from virtually anywhere within its operating range. Keep in mind, however, that the
number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass
through, may limit the range. Typical ranges vary depending on the types of materials and background RF
(radio frequency) noise in your home or business. The key to maximizing wireless range is to follow these
basic guidelines:
1 Keep the number of walls and ceilings between the WRT-390L and other network devices to a
minimum - each wall or ceiling can reduce your wireless product’s range from 3-90 feet (1-30
meters.) Position your devices so that the number of walls or ceilings is minimized.
2 Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a
45-degree angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42
feet (14 meters) thick! Position devices so that the signal will travel straight through a wall or ceiling
(instead of at an angle) for better reception.
3 Building Materials can impede the wireless signal - a solid metal door or aluminum studs may have a
negative effect on range. Try to position wireless devices and computers with wireless adapters so
that the signal passes through drywall or open doorways and not other materials.
4 Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that
generate extreme RF noise.
3.4 Getting Started
For a typical wireless setup at home, please do the following:
1. You will need broadband Internet access (a Cable or DSL-subscriber line into your home or
office)
2. Consult with your Cable or DSL provider for proper installation of the modem.
3. Connect the Cable or DSL modem to the WRT-390L Wireless Broadband Router (WAN
port).
4. Ethernet LAN ports of the WRT-390L are Auto MDI/MDIX and will work with both
Straight-Through and Cross-Over cable.

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4. Using the Configuration Menu
Whenever you want to configure your WRT-390L, you can access the Configuration Menu through
your PC by opening the Web-browser and typing in the IP Address of the WRT-390L. The
WRT-390L’s default IP Address is http://10.10.10.254
 Open the Web browser.
 Type in the IP Address of the Router (http://10.10.10.254).
If you have changed the default IP Address assigned to the WRT-390L, make sure to
enter the correct IP Address.
 Select admin in the User Name field.
 Leave the Password blank.
 Click Login In.

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4.1 Network
Network: Wan Setting

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Network: Lan Setting

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LAN Interface Setting
IP Address
The IP address of the this device on the local area network. Assign any unused IP address in
the range of IP addresses available for the LAN. For example, 192.168.0.101.
Subnet Mask
The subnet mask of the local area network.
DHCP Server Settings
DHCP stands for Dynamic Host Configuration Protocol. The DHCP section is where you
configure the built-in DHCP Server to assign IP addresses to the computers and other devices
on your local area network (LAN).
Enable DHCP Server
Once your router is properly configured and this option is enabled, the DHCP Server will
manage the IP addresses and other network configuration information for computers and other
devices connected to your Local Area Network. There is no need for you to do this yourself.
The computers (and other devices) connected to your LAN also need to have their TCP/IP
configuration set to "DHCP" or "Obtain an IP address automatically". When you set Enable
DHCP Server, the following options are displayed.
DHCP IP Address Range
These two IP values (Start and End) define a range of IP addresses that the DHCP Server
uses when assigning addresses to computers and devices on your Local Area Network. Any
addresses that are outside of this range are not managed by the DHCP Server; these could,
therefore, be used for manually configured devices or devices that cannot use DHCP to obtain
network address details automatically.
It is possible for a computer or device that is manually configured to have an address that does
reside within this range. In this case the address should be reserved, so that the DHCP Server
knows that this specific address can only be used by a specific computer or device.
Your router, by default, has a static IP address of 192.168.0.1. This means that addresses
192.168.0.2 to 192.168.0.254 can be made available for allocation by the DHCP Server.
Subnet Mask
The subnet mask of the local area network.
Gateway
The IP address of the router on the local area network. For example, 192.168.0.1.
DHCP Lease Time
The amount of time that a computer may have an IP address before it is required to renew the
lease. The lease functions just as a lease on an apartment would. The initial lease designates
the amount of time before the lease expires. If the tenant wishes to retain the address when
the lease is expired then a new lease is established. If the lease expires and the address is no
longer needed than another tenant may use the address.
Add/Edit DHCP Reservation
This option lets you reserve IP addresses, and assign the same IP address to the network
device with the specified MAC address any time it requests an IP address. This is almost the

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same as when a device has a static IP address except that the device must still request an IP
address from the router. The router will provide the device the same IP address every time.
DHCP Reservations are helpful for server computers on the local network that are hosting
applications such as Web and FTP. Servers on your network should either use a static IP
address or use this option.
Computer Name
You can assign a name for each computer that is given a reserved IP address. This may help
you keep track of which computers are assigned this way. Example: Game Server.
IP Address:
The LAN address that you want to reserve.
MAC Address
To input the MAC address of your system, enter it in manually or connect to the router's
Web-Management interface from the system and click the Copy Your PC's MAC Address
button.
A MAC address is usually located on a sticker on the bottom of a network device. The MAC
address is comprised of twelve digits. Each pair of hexadecimal digits are usually separated by
dashes or colons such as 00-0D-88-11-22-33 or 00:0D:88:11:22:33. If your network device is a
computer and the network card is already located inside the computer, you can connect to the
router from the computer and click the Copy Your PC's MAC Address button to enter the
MAC address.
Clear
Re-initialize this area of the screen, discarding any changes you have made.
DHCP Reservations List
This shows clients that you have specified to have reserved DHCP addresses. Click the
Enable checkbox at the left to directly activate or de-activate the entry. An entry can be
changed by clicking the Edit icon or can be deleted by clicking the Delete icon. When you click
the Edit icon, the item is highlighted, and the "Edit DHCP Reservation" section is activated for
editing.

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Network: DHCP Client List
DHCP Client List
In this section you can see what LAN devices are currently leasing IP addresses.

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4.2 Wireless
Wireless: Basic