Billion 5200N User Manual

Firewall

Supports simple firewall with NAT technology and provides option for blocking access from

Internet, like Telnet, FTP, WEB, SNMP and IGMP.

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 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.

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 http://www.dyndns.org/.

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 Server

User can specify some services to be visible from outside users. The router can detect

incoming service request and forward it to the specific local computer to handle it. For

example, user can assign a PC in LAN acting as WEB server inside and expose it to the

outside network. Outside user can browse inside web server directly while it is protected by

NAT. A DMZ host setting is also provided to a local computer exposed to the outside network,

Internet.

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.

RIP1/2 Routing

Supports RIP1/2 routing protocol for 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