ZyXEL Communications HS100/HS100W manual Network Address Translation NAT, Traffic Redirect, Any IP

HomeSafe User’s Guide

Network Address Translation (NAT)

Network Address Translation (NAT) allows the translation of an Internet protocol address used within one network (for example a private IP address used in a local network) to a different IP address known within another network (for example a public IP address used on the Internet).

Traffic Redirect

Traffic Redirect forwards WAN traffic to a backup gateway on the LAN when the HomeSafe cannot connect to the Internet, thus acting as an auxiliary backup when your regular WAN connection fails.

Port Forwarding

Use this feature to forward incoming service requests to a server on your local network. You may enter a single port number or a range of port numbers to be forwarded, and the local IP address of the desired server.

DHCP (Dynamic Host Configuration Protocol)

DHCP (Dynamic Host Configuration Protocol) allows the individual client computers to obtain the TCP/IP configuration at start-up from a centralized DHCP server. The HomeSafe has built-in DHCP server capability, enabled by default, which means it can assign IP addresses, an IP default gateway and DNS servers to all systems that support the DHCP client. The HomeSafe can also act as a surrogate DHCP server where it relays IP address assignments from the actual DHCP server to the clients.

Any IP

The Any IP feature allows a computer to access the Internet without changing the network settings (such as IP address and subnet mask) of the computer, when the IP addresses of the computer and the HomeSafe are not in the same subnet.

Full Network Management

The embedded web configurator is an all-platform web-based utility that allows you to easily access the HomeSafe’s management settings and configure the firewall. Most functions of the HomeSafe are also software configurable via the SMT (System Management Terminal) interface. The SMT is a menu-driven interface that you can access over a telnet connection.

RoadRunner Support

In addition to standard cable modem services, the HomeSafe supports Time Warner’s RoadRunner Service.

Logging and Tracing

¾Built-in message logging and packet tracing.

¾Unix syslog facility support.

¾Firewall logs.

¾Content filtering logs.

Upgrade HomeSafe Firmware via LAN

The firmware of the HomeSafe can be upgraded via the LAN (refer to Maintenance- F/W Upload Screen).

Embedded FTP and TFTP Servers

The HomeSafe’s embedded FTP and TFTP Servers enable fast firmware upgrades as well as configuration file backups and restoration.

1-4 Getting to Know Your HomeSafe