ZyXEL Communications ZyXEL ZyWALL P1, User Manual

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ZyWALL P1 User’s Guide
Chapter 1 Getting to Know Your ZyWALL 35
• Firewall logs.
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
Here are some examples of what you can do with your ZyWALL.
1.3.1
Secure Network Access for Telecommuters
The following figure shows a VPN network example. A telecommunter can simply connect
the pre-configured ZyWALL and enter the VPN account information to establish a VPN
connection through the Internet to headquaters.
Figure 1 Application: Telecommuters
1.3.2 LAN Network Protection
In most cases, firewalls are deployed to protect the local network (LAN) from attacks
originating from the WAN (such as the Internet). However, security outbreaks are possible on
the LAN via other means (such as file shareing with removable storage devices). You can use
the ZyWALL to provide network security on the LAN.
In the following example, computers in the Sales and Research departments are protected from
each other by the ZyWALLs on the LAN.