P-334U/P-335U User’s Guide

Table 92 Firmware Specifications

FEATURE

DESCRIPTION

 

 

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 ZyXEL

 

Device.

 

Note: Only upload firmware for your specific model!

Configuration Backup &

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

Restoration

the ZyXEL Device 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 ZyXEL Device assign IP addresses, an IP

Configuration Protocol)

default 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

 

ZyXEL Device 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 ZyXEL Device 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 ZyXEL Device. 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 ZyXEL Device 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 ZyXEL Device 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.

 

Activate UPnP to have the ZyXEL Device communicate with other UPnP-

 

enabled devices in a network.

RoadRunner Support

The ZyXEL Device 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 ZyXEL Device 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.

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Appendix A Product Specifications