|D-Link Home DSL/Cable Modem
Gateway and 4-port Switch
The DI-704 Home DSL/Cable
Gateway + 4-port switch delivers complete hardware firewall protection
for a PC. The DI-704 will stop hackers and intruders before they can get
to the PC. It is positioned in the path to take the intruder hit, while
protecting the PC.
The D-Link DI-704 is a Broadband
Home and Small Business Gateway with Four Switched Fast Ethernet Ports.
It allows multiple computers to share a cable or DSL Internet connection.
It provides security as a firewall between a Local Network and the Internet.
The DI-704 is targeted at small businesses and home users.
The DI-704 allows up to 253
computers to simultaneously connect to the Internet through the same ISP
account. The Di-704 employs a Dynamic Host Configuration Protocol (DHCP)
that provides dynamic allocation of IP addresses for up to 253 clients
on your network. Being very flexible, the DI-704 will connect to any Ethernet
devices and multiple types of machines and operating systems.
The DI-704 is an IEEE 802.3
Ethernet based Home DSL/Cable Gateway and 4-port Switch . It provides four
10/100 Dual Speed Ethernet ports for connection to create a home or small
office network and one 10Mb Ethernet port for a DSL Modem, Cable Modem
or other Broadband access device. The D-Link DI-704 provides the safety
and security of both a port blocking device and as a natural firewall as
well as integrated NAT support that allows up to 32 users to share a single
Internet Connection. Static address support, integrated client/server DHCP,
and device name support will allow the D-Link Home DSL/Cable Gateway to
connect to nearly any Broadband provider, and at the same time simplify
local area network settings.
The DI-704 provides two levels
of security support. First, it masks local usersí IP addresses from others
on the Internet making it much more difficult for a hacker to target a
machine on your network. Secondly it can block and redirect certain ports
to limit the services that outside users can access. Specific ports can
be opened by the user to ensure that games and other Internet applications
will run properly.
Unlike proxy server or NAT
software that requires the software server to remain visible on the Internet,
no local computers are directly externally visible when using the DI-704.
Also the DI-704, like broadband, is always on, removing the need to constantly
boot a software server when access is desired from a client. No client
software is required to connect to the DI-704 so it will support any operating
system that can connect to a network whether PC or Apple based*.
PPPoE, a relatively new de
facto standard protocol, has been adopted by an increasing number of ISPs
that wish to leverage their investment in traditional PPP based Dial Up
services. PPPoE creates a virtual connection between a broadband user and
their ISPís network. By adding PPPoE to the DI-704, D-Link has guaranteed
the type of ease in installation and industry compatibility demanded by
the home user.
Integrated DHCP services
allow up to 253 users to get their IP address automatically on boot up
from the DI-704. Client machines require no software, simply set them to
accept a dynamically assigned IP address and reboot. Each time they are
powered up the DI-704 will recognize them and set their IP address to instantly
connect them to the LAN.
It allows up to 253 users
to share a single Internet Connection while providing the safety and security
of both port blocking and a natural firewall. Static address support, integrated
DHCP, and device name support will allow it to connect to nearly any broadband
provider, and at the same time simplify local area network settings.
For advanced users Virtual
Service support allows the DI-704 to provide limited visibility to local
machines and their services as dictated by the user. An ISP provided IP
address can be set to the DI-704 and then specific services can be rerouted
to specific computers on the local network. For instance, a dedicated web
server can be connected to the Internet via the DI-704 and then incoming
requests for HTML that are received by the DI-704 can be rerouted to the
original server, even though the server now has a different IP address.
In this example, the DI-704 is on the Internet and vulnerable to attacks,
but the server is protected.
Virtual Service can also
be used to re-task services to multiple servers. For instance, the DI-704
can be set to allow separate FTP, Web, and Multiplayer game servers to
share the same Internet-visible IP address while still protecting the servers
and local users from hackers.
For ISP, BSP, DLEC, and Cable
Company distribution, the DI-704 can be configured with two levels of administrative
control. A broadband provider can set the number of users, and change IP
configurations remotely. Effectively it creates a separation between the
providerís and userís networks to localize the effects of any local userís
network settings and give the added benefit of NAT support to simplify
the assignment and number of IP addresses on the providerís network. Remote
configuration serves as a platform to increase the effectiveness of a providerís
customer support, enabling fast and powerful remote diagnosis. Through
the use of a single IP address, the user will additionally benefit from
a single subnet, ensuring that as additional computers are provided with
Internet access, they will still be able to network via TCP/IP locally,
without needing any additional local gateways or routers.
The DI-704 provides special
support for common VPN implementations including PPTP (Point to Point Tunneling
Protocol). The Virtual Server feature allows the user to expose HTTP, FTP,
Game Servers and other local services to be accessible to Internet users
located outside of your LAN. The User-Definable Application Sensing Tunnel
feature allows the user to define the attributes to support special applications
requiring multiple connections, such as Internet gaming, video conferencing,
and Internet telephony. A DMZ setting can be applied to a single client
behind the DI-704 to expose it to the Internet and ensure complete Internet
application compatibility even if specific ports are not known.
The D-Link DI-704 strictly
adheres to IEEE standards, and is compatible with existing network technology.
The four 10/100 Mbps ports adhere to IEEE 802.3 and IEEE 802.3u, which
specify 10BASE-T and 100BASE-TX Ethernet technology respectively, and use
NWay auto-negotiation to switch between 10Mbps and 100Mbps speeds. The
four 10/100 Ethernet ports use layer 2 switching technology to minimize
packet broadcast, greatly enhancing the speed and productivity of the LAN.
Each port also adheres to the IEEE 802.3x standard, which specifies Flow
Control support for full-duplex Ethernet ports.