ZyXEL Communications ADSL2+4 User Manual

Chapter 1 Introduction

P-660H-T1v3s User’s Guide

Do the following things regularly to make the P-660H-T1v3s more secure and to 
manage the P-660H-T1v3s more effectively.

• Change the password. Use a password that’s not easy to guess and that consists 

of different types of characters, such as numbers and letters.

• Write down the password and put it in a safe place.
• Back up the configuration (and make sure you know how to restore it). 

Restoring an earlier working configuration may be useful if the device becomes 

unstable or even crashes. If you forget your password, you will have to reset the 

P-660H-T1v3s to its factory default settings. If you backed up an earlier 

configuration file, you would not have to totally re-configure the P-660H-T1v3s. 

You could simply restore your last configuration.

Here are some example uses for which the P-660H-T1v3s is well suited.

Your P-660H-T1v3s provides shared Internet access by connecting the DSL port to 
the DSL or MODEM jack on a splitter or your telephone jack. Computers can 
connect to the P-660H-T1v3s’s LAN ports.

Figure 1   P-660H-T1v3s’s Router Features

You can also configure firewall and content filtering on the P-660H-T1v3s for 
secure Internet access. When the firewall is on, 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.