ZyXEL Communications 5 Series - Manual (Page 63)

ZyWALL 5/35/70 Series User’s Guide
Chapter 1 Getting to Know Your ZyWALL 63
Upgrade ZyWALL Firmware via LAN
The firmware of the ZyWALL can be upgraded via the LAN.
Embedded FTP and TFTP Servers
The ZyWALL’s embedded FTP and TFTP Servers enable fast firmware upgrades as well as
configuration file backups and restoration.
1.3 Applications for the ZyWALL
Here are some examples of what you can do with your ZyWALL.
1.3.1 Secure Broadband Internet Access via Cable or DSL Modem
You can connect a cable modem, DSL or wireless modem to the ZyWALL for broadband
Internet access via Ethernet or wireless port on the modem. The ZyWALL guarantees not only
high speed Internet access, but secure internal network protection and traffic management as
well.
Figure 1 Secure Internet Access via Cable, DSL or Wireless Modem
1.3.2 VPN Application
ZyWALL VPN is an ideal cost-effective way to connect branch offices, business partners and
telecommuters over the Internet without the need (and expense) for leased lines between sites.