Chapter 46 Product Specifications

Table 222 Firmware Specifications

FEATURE

DESCRIPTION

Device Management

Use the web configurator to easily configure the rich range of features on

 

the ZyWALL.

 

 

Firmware Upgrade

Download new firmware (when available) from the ZyXEL web site and

 

use the web configurator, an FTP or a TFTP tool to put it on the

 

ZyWALL.

 

Note: Only upload firmware for your specific model!

 

 

Configuration Backup &

Make a copy of the ZyWALL’s configuration. You can put it back on the

Restoration

ZyWALL later if you decide to revert back to an earlier configuration.

 

 

Network Address

Each computer on your network must have its own unique IP address.

Translation (NAT)

Use NAT to convert your public IP address(es) to multiple private IP

 

addresses for the computers on your network.

 

 

Port Forwarding

If you have a server (mail or web server for example) on your network,

 

you can use this feature to let people access it from the Internet.

 

 

DHCP (Dynamic Host

Use this feature to have the ZyWALL assign IP addresses, an IP default

Configuration Protocol)

gateway and DNS servers to computers on your network.

 

 

Dynamic DNS Support

With Dynamic DNS (Domain Name System) support, you can use a

 

fixed URL, www.zyxel.com for example, with a dynamic IP address. You

 

must register for this service with a Dynamic DNS service provider.

 

 

IP Multicast

IP multicast is used to send traffic to a specific group of computers. The

 

ZyWALL supports versions 1 and 2 of IGMP (Internet Group

 

Management Protocol) used to join multicast groups (see RFC 2236).

 

 

IP Alias

IP alias allows you to subdivide a physical network into logical networks

 

over the same Ethernet interface with the ZyWALL itself as the gateway

 

for each subnet.

 

 

Time and Date

Get the current time and date from an external server when you turn on

 

your ZyWALL. You can also set the time manually. These dates and

 

times are then used in logs.

 

 

Logging and Tracing

Use packet tracing and logs for troubleshooting. You can send logs from

 

the ZyWALL to an external syslog server.

 

 

PPPoE

PPPoE mimics a dial-up Internet access connection.

 

 

PPTP Encapsulation

Point-to-Point Tunneling Protocol (PPTP) enables secure transfer of

 

data through a Virtual Private Network (VPN). The ZyWALL supports

 

one PPTP connection at a time.

 

 

Universal Plug and Play

A UPnP-enabled device can dynamically join a network, obtain an IP

(UPnP)

address and convey its capabilities to other devices on the network.

 

 

RoadRunner Support

The ZyWALL supports Time Warner’s RoadRunner Service in addition to

 

standard cable modem services.

 

 

Firewall

You can configure firewall on the ZyXEL Device for secure Internet

 

access. When the firewall is on, by default, all incoming traffic from the

 

Internet to your network is blocked unless it is initiated from your

 

network. This means that probes from the outside to your network are

 

not allowed, but you can safely browse the Internet and download files

 

for example.

 

 

Content Filter

The ZyWALL blocks or allows access to web sites that you specify and

 

blocks access to web sites with URLs that contain keywords that you

 

specify. You can define time periods and days during which content

 

filtering is enabled. You can also include or exclude particular computers

 

on your network from content filtering.

 

You can also subscribe to category-based content filtering that allows

 

your ZyWALL to check web sites against an external database.

614

 

ZyWALL 2 Plus User’s Guide