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Chapter 1: Introduction
2
Universal Plug and Play (UPnP) and UPnP NAT Traversal
This protocol is used to enable simple and robust connectivity among stand-alone devices
and
PCs from many different vendors. It makes network simple and affordable for users. UPnP
architecture leverages TCP/IP and the Web to enable seamless proximity networking in addition to
control and data transfer among networked devices. With this feature enabled, users can now
connect to Net meeting or MSN Messenger seamlessly.
Network Address Translation (NAT)
Allows multi-users to access outside resources such as the Internet simultaneously with one IP
address/one Internet access account. Many application layer gateway (ALG) are supported such
as web browser, ICQ, FTP, Telnet, E-mail, News, Net2phone, Ping, NetMeeting, IP phone and
others.
Firewall
Supports SOHO firewall with NAT technology. Automatically detects and blocks Denial of Service
(DoS) attacks. The URL blocking, packet filtering and SPI (Stateful Packet Inspection) are also
supported. The hacker’s attack will be recorded associated with timestamp in the security logging
area. More firewall functions will always be implemented through updated firmware releases.
Domain Name System (DNS) relay
Provides an easy way to map the domain name (a friendly name for users such as
www.yahoo.com
) and IP address. When local machine sets its DNS server with this router’s IP
address, every DNS conversion request packet from the PC to this router will be forwarded to the
real DNS in the outside network.
Dynamic Domain Name System (DDNS)
The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname. This
dynamic IP address is the WAN IP address. For example, to use the service, you must first apply
for an account from a DDNS service like
. More than 5 DDNS servers are
supported.
PPP over Ethernet (PPPoE)
Provides embedded PPPoE client function to establish a connection.
Users can get greater
access speed without changing the operation concept, sharing the same ISP account and paying
for one access account. No PPPoE client software is required for local computer. The Automatic
Reconnect and Disconnect Timeout (Idle Timer) functions are provided, too.
Virtual Private Network (VPN) (Optional)
Allows user to make a tunnel with a remote site directly to secure the data transmission among the
connection. User can use embedded PPTP and L2TP client/server, IKE and IPSec which are
supported by this router to make a VPN connection or users can run the PPTP client in PC and the
router already provides IPSec and PPTP pass through function to establish a VPN connection if
the user likes to run the PPTP client in his local computer.
Virtual Server (“port forwarding”)
Users can specify some services to be visible from outside users. The router can detect incoming
service requests and forward either a single port or a range of ports to the specific local computer
to handle it. For example, a user can assign a PC in the LAN acting as a WEB server inside and
expose it to the outside network. Outside users can browse inside web servers directly while it is
protected by NAT. A DMZ host setting is also provided to a local computer exposed to the outside
network, Internet.
Rich Packet Filtering
Not only filters the packet based on IP address, but also based on Port numbers. It will filter
packets from and to the Internet, and also provides a higher level of security control.
Page 7 / 146
Chapter 1: Introduction
3
Dynamic Host Configuration Protocol (DHCP) client and server
In the WAN site, the DHCP client can get an IP address from the Internet Service Provider (ISP)
automatically. In the LAN site, the DHCP server can allocate a range of client IP addresses and
distribute them including IP address, subnet mask as well as DNS IP address to local computers. It
provides an easy way to manage the local IP network.
Static and RIP1/2 Routing
Supports an easy static routing table or RIP1/2 routing protocol to support routing capability.
Simple Network Management Protocol (SNMP)
It is an easy way to remotely manage the router via SNMP.
Web based GUI
Supports web based GUI for configuration and management. It is user-friendly and comes with on-
line help. It also supports remote management capability for remote users to configure and
manage this product.
Firmware Upgradeable
Device can be upgraded to the latest firmware through the WEB based GUI.
Rich management interfaces
Supports flexible management interfaces with local console port, LAN port, and WAN port. Users
can use terminal applications through the console port to configure and manage the device, or
Telnet, WEB GUI, and SNMP through LAN or WAN ports to configure and manage the device.
Page 8 / 146
Chapter 1: Introduction
4
7402 ADSL Router Application
Figure 1.1 Application Diagram of
7402
Thank you for your purchase, and welcome to the world of broadband Internet!
Page 9 / 146
Chapter 2: Installing the Router
5
Chapter 2: Installing the Router
Important note for using the 7402 ADSL2+ Router
Package Contents
BEC 7402 ADSL2+ Triple Play Router
RJ-11 ADSL/telephone Cable
Ethernet (CAT-5 LAN) Cable
AC-DC power adapter (12V DC, 1A)
External Antenna
(Wireless Router Only)
9
DO NOT use the 7402 in high humidity or high temperatures.
9
DO NOT use the same power source for the 7402 as other
equipment.
9
DO NOT open or repair the case yourself.
If the 7402 is too hot, turn
off the power immediately and have it repaired at a qualified service
center.
9
Avoid using this product and all accessories outdoors.
Warning
9
Place the 7402 on a stable surface.
9
Only use the power adapter that comes with the package. Using a
different voltage rating power adaptor may damage the router.
Attention
Page 10 / 146
Chapter 2: Installing the Router
6
The Front LEDs
LED
Meaning
1
PPP / MAIL
Lit steady when there is a PPPoA / PPPoE connection.
Lit and flashed periodically when there is email in the Inbox.
2
ADSL
When lit, it indicates that the ADSL (Line) port is connected to the
DSLAM and working properly.
3
LAN Port
1X
4X
(RJ-45 connector)
Lit when the LAN link is connected to an Ethernet device.
Green for 100Mbps; Orange for 10Mbps.
Blinking when data is Transmitted / Received.
4
WLAN
Lit green when the wireless connection is established.
Flashes when sending/receiving data.
5
SYS
Lit when the system is ready.
6
PWR
Lit when power is ON.
PPP/MAIL
ADSL
1
2
3
4
WLAN
SYS
PWR
LAN

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