ZyXEL Communications P-2802H-I Series, Руководство пользователя

Страница: 37 / 418

Chapter 1 Introducing the ZyXEL Device
P-2802H(W)(L)-I Series User’s Guide
37
1.3 Good Habits for Managing the ZyXEL Device
Do the following things regularly to make the ZyXEL Device more secure and to manage the
ZyXEL Device 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 ZyXEL Device to its
factory default settings. If you backed up an earlier configuration file, you would not have
to totally re-configure the ZyXEL Device. You could simply restore your last
configuration.
1.4 Applications for the ZyXEL Device
Here are some example uses for which the ZyXEL Device is well suited.
1.4.1 Secure Internet Access
For Internet access, connect the DSL port to the DSL or MODEM jack on a splitter or your
telephone jack for Internet access. Connect computers or servers to the LAN ports for shared
Internet access.
The ZyXEL Device guarantees not only high speed Internet access, but secure internal
network protection and traffic management as well.
Figure 1 Secure Internet Access Application
You can also configure firewall and content filtering on the ZyXEL Device 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 for
example.