Billion Electric Company 7402 User Manual

Chapter 1: Introduction  

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. 

 

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. 

 

Supports SOHO firewall with NAT technology, automatically detects and blocks Denial of 
Service (DoS) attacks. 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.  

  

 Provides an easy way to map the domain name (a friendly name for users such as 
www.yahoo.com) and IP address. When a 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.  

 

 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 http://www.dyndns.org/. More 
than 5 DDNS servers are supported. 

 

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. 

 

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. 

 

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. 

 

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