Linksys EtherFast BEFSRU31 Specification Sheet

ow you can instantly configure your EtherFast® Cable/DSL
Router through its new Plug-and-Play USB port. Simply

connect your desktop or notebook PC to your Router with
a USB cable,install the driver, and you're ready to enjoy a secure,
high-speed cable/DSL Internet connection. It's that easy,without
even installing a network card!

Configurable as a DHCP server, this EtherFast

®

Cable/DSL Router
protects networks of up to 253 users with its NAT firewall.
Manage and modify your Router's network with IP Forwarding,IP
Filtering, DMZ Hosting, and much more. Its proven PPPoE com­patibility, IPSec Pass-Through, and PPTP support for secure VPN
connections provides key Internet functions so you can maximize
your online capabilities.

Plus,three 10/100 switched ports allow you to connect more net­work devices directly to your Router without buying extra hubs
and switches. With the EtherFast

®

Cable/DSL Router's speed,sim­plicity and power,your Internet access will take off faster than you
ever imagined possible.

EtherFast®Cable/DSL Router

with USB and 3-Port 10/100 Switch

• USB Port Allows Instant, Plug-and-Play Access to
Your Router

• Connects a Cable/DSL Modem to a 10/100 Network
and a USB-Ready PC

• NAT Firewall Protects Your PCs From Unwanted
Intruders on the Internet

• Configurable Through Y our W eb Browser

• Supports IPSec Pass-Through and PPTP

• Remote Management and Remote Firmware
Upgrading

• Equipped with a 3-Port 10/100 Switch

• Acts as a DHCP Server for Your Network

• Compatible with Virtually All Standard Internet
Applications

• Filtering, Forwarding, DMZ Hosting, and Other
Advanced Features

• Free Technical Support—24 Hours a Day, 7 Days a
Week for North America Only

• 1-Year Limited Warranty

• Instantly Connect Your Router to a PC
Using a Plug-and-Play USB Port

• Access the Internet from Y our Netw ork PCs
with Just One IP Address

• Build a Broadband Network in Your Home
or Small Office

• Equipped with a 3-Port 10/100 Switch

• NAT Firewall Protects Your PCs From
Outside Intruders on the Internet

• IP Filtering, Forwarding and DMZ Hosting

• Free Technical Support—24 Hours a Day, 7
Days a Week for North America Only

• 1-Year Limited Warranty

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Network Your USB-Ready PC Instantly

And Share High-Speed Internet Access

Features

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Package ContentsSpecifications

Model Number: BEFSRU31
Standards: IEEE 802.3 (10BaseT), IEEE 802.3u

(100BaseTX), USB Specification 1.0 & 1.1

Protocol: CSMA/CD
Ports: WAN: One 10Base-T Port (for Modem)

LAN: Three 10/100 RJ-45 Switched Ports

One Shared Uplink Port,
One USB (Slave) Port

Cabling Type: 10BaseT: UTP Category 3 or better

100BaseTX: UTP Category 5 or better

USB: USB Cable
Topology: Star
Speed (Mbps): WAN: 10

LAN: 10 or 20 (Half/Full Duplex) or

100 or 200 (Half/Full Duplex)

USB: Up to 12
LEDs: Power

WAN: Link,Act, Diag

LAN: Link/Act, Full/Col, 100

USB: Link/Act

Environmental

Dimensions: 7.31”x 6.16” X 1.88”

(186 mm x 154 mm x 48 mm)

Unit Weight: 13.4 oz. (0.38 Kg)
Power: External, 9V AC, 1A
Certifications: FCC Class B,CE Mark Commercial
Operating Temp: 32ºF to 104ºF (0ºC to 40ºC)
Storage Temp: -4ºF to 158ºF (-20ºC to 70ºC)
Operating Humidity: 10% to 85%, Non-Condensing
Storage Humidity: 5% to 90%, Non-Condensing

EtherFast®Cable/DSL Router with USB

and 3-Port 10/100 Switch

• One EtherFast

®

Cable/DSL Router with USB

Port & 3-Port 10/100 Switch

• One USB Cable

• One Driver Disk (for USB Port)

• One Power Adapter

• One User Guide and Registration Card

Model Number: BEFSRU31

System Requirements

• Internet Explorer 4.0 or higher (5.0
Recommended), or Netscape Navigator

4.0 or higher (4.7 Recommended)

• Windows 98, 2000, or Millennium for USB
Port

Linksys

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Irvine, CA 92614 USA

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