Atlantis Land Network Router ユーザーズマニュアル

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Chapter 1 
Introduction 
1.1 An Overview of I-Fly Wireless Router ADSL 
ADSL Modem/Router provides a high-speed Ethernet port and an USB (Universal Serial Bus) port for 
high-speed Internet browsing. It can support downstream transmission rates of up to 8Mbps and upstream 
transmission rates of up to 1024Kbps.  It is compliant with Multi-Mode standard (ANSI T1.413, Issue 2; 
G.dmt (G.992.1); G.lite (G992.2); G.hs (G994.1)).  
The product supports PPPoA (RFC 2364 – PPP (Point-to-Point Protocol) over ATM Adaptation Layer 5), 
RFC 1483 encapsulation over ATM (bridged or routed), PPP over Ethernet (RFC 2516), and IPoA 
(RFC1577) to establish a connection with ISP. The product also supports VC-based and LLC-based 
multiplexing. 
It is the perfect solution to connect a small group of PCs to a high-speed broadband Internet connection. 
Multi-users can have high-speed Internet access simultaneously.  
This product also serves as an Internet firewall, protecting your network from being accessed by outside 
users. Not only provide the natural firewall function (Network Address Translation, NAT), it also 
provides rich firewall features to secure user’s network. All incoming data packets are monitored and 
filtered.  Besides, it can also be configured to block internal users from accessing to the Internet.   
The product provides two levels of security support.  First, it masks LAN users’ IP addresses which are 
invisible to outside users 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.  For example, to ensure that games and other Internet applications will run properly, user can 
open some specific ports for outside users to access internal services in network. 
Integrated DHCP (Dynamic Host Control Protocol) services, client and server, allow multiple users to get 
their IP addresses automatically on boot up from the product.  Simply set local machines as a DHCP 
client to accept a dynamically assigned IP address from DHCP server and reboot.  Each time local 
machine is powered up; the router will recognize it and assign an IP address to instantly connect it to the 
LAN.
  
 
For advanced users, Virtual Service function allows the product to provide limited visibility to local 
machines with specific services for outside users.  An ISP (Internet Service Providers) provided IP 
address can be set to the product 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 product and 
then incoming requests for HTML that are received by the product can be rerouted to the dedicated local 
web server, even though the server now has a different IP address.  In this example, the product is on the 
Internet and vulnerable to attacks, but the server is protected. 
Virtual Server can also be used to re-task services to multiple servers.  For instance, the product can be set 
to allow separated FTP, Web, and Multiplayer game servers to share the same Internet-visible IP address 
while still protecting the servers and LAN users from hackers.