Billion 5200N ユーザーズマニュアル

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.