Zonet Technology ZSR0104C Series User Manual

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LAN clients. Therefore the LAN clients “share” the only one WAN IP address, and it is called

Broadband Switch.

‧ Firewall

ZSR0104C SERIES provides prevents Ping and TCP/UDP Echo Attack, Hacker’s Scan, and

Denial of Service (DoS). Also it offers Service Filter and URL Filter (by Keyword).

‧ Dynamic

DNS

Dynamic DNS (Domain Name System) allows you to register and obtain a fixed domain name

from DDNS service providers that ZSR0104C SERIES supports. When your ZSR0104C

SERIES obtains a dynamic public IP address, your ZSR0104C SERIES will inform the DDNS

service provider an updated IP address. Any a connection toward your domain name will be

mapped to the updated IP address by your DDNS service provider. You can be found easily by

connecting to your fixed domain name.

‧ Virtual Server (Port Forwarding)

ZSR0104C SERIES can forward the service packet specified with a port number to the LAN

host specified by the LAN IP address. In other words, ZSR0104C SERIES can open the port

for the service with specified port number and then “forward” the port to a LAN host. Thus it

is called Port Forwarding, too.

‧ VPN

Pass-Through

In a Virtual Private Network, ZSR0104C SERIES supports the tunneling of Point-to-Point

Tunneling Protocol (PPTP) packet and allows it to enter the LAN that is the endpoint of the

VPN.

‧ Special

Application

Certain Internet applications use multiple ports, port ranges, dynamically assigned ports, and

special protocols. ZSR0104C SERIES supports the transparent pass-through of these special

applications, including FTP, ICMP, NetMeeting / H.323, Real Radio, Quick Time, MSN

Messenger, etc. and many popular Internet Games.

‧ Public

DMZ

Host

Public DMZ Host is a device with a public IP address on the LAN side. ZSR0104C SERIES

provides the tunnel service for data traffic between the Public DMZ Host and the Internet.

‧ Local DMZ Host

Local DMZ Host is a device with the private IP address on the LAN side. ZSR0104C SERIES

can forward the traffic initiated from the Internet to the Local DMZ Host.

‧ DHCP

Client

ZSR0104C SERIES can work as DHCP client and obtain an IP address automatically from the

Internet Service Provider or a DHCP server on the WAN side.

• DHCP

Server

As DHCP server, ZSR0104C SERIES can automatically assign TCP/IP settings to each client

PC on the LAN side and remember each client’s IP address corresponding to the client’s

MAC address. When ZSR0104C SERIES assigns TCP/IP settings in the next time, the LAN