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Page 16 / 131 Scroll up to view Page 11 - 15
I
NTRODUCTION
1-2
Features and Benefits
•
Intergrated ADSL modem for connecting to ADSL line
•
Fully backward compatible with 802.11 g/802.11 b networks
•
Wireless speeds up to 300 Mbps.
•
Increased speed and coverage - up to 5 times the speed of 802.11g
•
Local network connection via four 10/100 Mbps Ethernet ports
•
DHCP for dynamic IP configuration, and DNS Proxy/Relay for
domain name mapping
•
Firewall with Stateful Packet Inspection, client privileges, intrusion
detection, and NAT
•
NAT also enables multi-user Internet access via a single user account,
and virtual server functionality (providing protected access to Internet
services such as web, FTP, e-mail, and Telnet)
•
VPN pass-through (IPSec-ESP Tunnel mode, L2TP, PPTP)
•
User-definable application sensing tunnel supports applications
requiring multiple connections
•
Easy setup through a web browser on any operating system that
supports TCP/IP
•
Compatible with all popular Internet applications
Page 17 / 131
A
PPLICATIONS
1-3
Applications
Many advanced networking features are provided by the Barricade:
•
Wired and Wireless LAN
The Barricade provides connectivity to 10/100 Mbps devices, and
wireless connection speed up to 300 Mbps. This router is fully
compliant with specifications defined in IEEE 802.11b, IEEE
802.11g and IEEE 802.11n draft v2.0 standards, making it easy to
create a network in small offices or homes.
•
Internet Access
This device supports Internet access through an ADSL connection.
Since many DSL providers use PPPoE to establish communications
with end users, the Barricade includes built-in clients for these
protocols, eliminating the need to install these services on your
computer.
•
Shared IP Address
Using only one ISP account, multiple users on your network can
access the Internet at the same time.
•
Virtual Server
If you have a fixed IP address, you can set the Barricade to act as a
virtual host for network address translation. Remote users access
various services at your site using a constant IP address. Then,
depending on the requested service (or port number), the Barricade
can route the request to the appropriate server (at another internal IP
address). This secures your network from direct attack by hackers, and
provides more flexible management by allowing you to change
internal IP addresses without affecting outside access to your
network.
Page 18 / 131
I
NTRODUCTION
1-4
•
DMZ Host Support
Allows a networked computer to be fully exposed to the Internet.
This function is used when NAT and firewall security prevent an
Internet application from functioning correctly.
•
Security
The Barricade supports security features that deny Internet access to
specified users, or filter all requests for specific services that the
administrator does not want to serve. The Barricade’s firewall also
blocks common hacker attacks, including IP Spoofing, Land Attack,
Ping of Death, IP with zero length, Smurf Attack, UDP port
loopback, Snork Attack, TCP null scan, and TCP SYN flooding.
•
Virtual Private Network (VPN)
The Barricade supports three of the most commonly used VPN
protocols — PPTP, L2TP, and IPSec. These protocols allow remote
users to establish a secure connection to their corporate network. If
your service provider supports VPNs, then these protocols can be
used to create an authenticated and encrypted tunnel for passing
secure data over the Internet (i.e., a traditionally shared data network).
The VPN protocols supported by the Barricade are briefly described
below.
•
Point-to-Point Tunneling Protocol — Provides a secure tunnel
for remote client access to a PPTP security gateway. PPTP
includes provisions for call origination and flow control required
by ISPs.
•
L2TP merges the best features of PPTP and L2F — Like PPTP,
L2TP requires that the ISP’s routers support the protocol.
•
IP Security — Provides IP network-layer encryption. IPSec can
support large encryption networks (such as the Internet) by using
digital certificates for device authentication.
Page 19 / 131
2-1
C
HAPTER
2
I
NSTALLATION
Before installing the Barricade
TM
, verify that you have all the items listed
under the Package Contents list. If any of the items are missing or
damaged, contact your local distributor. Also be sure that you have all the
necessary cabling before installing the Barricade. After installing the
Barricade, refer to Configuring the Barricade
TM
on page 4-1.
Package Contents
After unpacking, check the contents of the box to be sure you have
received the following components:
•
ADSL2 Barricade N (SMC7904WBRA-N)
•
Power adapter
•
One CAT-5 Ethernet cable (RJ-45)
•
One Telephone patch cables (RJ-11)
•
Documentation CD
•
One Warranty information card
Immediately inform your dealer in the event of any incorrect, missing, or
damaged parts. If possible, please retain the carton and original packing
materials in case there is a need to return the product.
Page 20 / 131
I
NSTALLATION
2-2
System Requirements
You must meet the following minimum requirements:
•
ADSL Internet service
•
2.4 GHz 802.11n draft wireless adapter or 2.4 GHz 802.11b/g wireless
adapter installed on each PC. Alternatively an Ethernet adapter can be
used.
•
Internet Explorer 5.5 or above, Netscape 4.7 or above, Mozilla Firefox
1.0 or above
Hardware Description
The Barricade contains an integrated ADSL2+ modem and connects to
the Internet or to a remote site using its WAN port. This device can be
connected directly to your PC or to a local area network using any of the
four Fast Ethernet LAN ports.
Access speed to the Internet depends on your service type. Full-rate ADSL
provides up to 8 Mbps downstream and 1 Mbps upstream. G.lite (or
splitterless) ADSL provides up to 1.5 Mbps downstream and 512 kbps
upstream. ADSL2+ Provides up to 24 Mbps downstream and 1 Mbps
upstream. However, you should note that the actual rate provided by
specific service providers may vary dramatically from these upper limits.
Data passing between devices connected to your local area network can
run at up to 100 Mbps over the Fast Ethernet ports. Data rates up to
300 Mbps are possible with the 802.11n function enabled.
The Barricade includes an LED display on the front panel for system
power and port indications that simplifies installation and network
troubleshooting.

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