What You Need To Know; General Firewall Screen - ZyXEL Communications MWR222 - V1.0 Manual

• Use the Services screen screen enable service blocking, enter/delete/modify the
services you want to block and the date/time you want to block them.
18.3

What You Need To Know

The MWR222's firewall feature physically separates the LAN and the WAN and
acts as a secure gateway for all data passing between the networks.
It is designed to protect against Denial of Service (DoS) attacks when activated
(click the General tab under Firewall and then click the Enable Firewall check
box). The MWR222's purpose is to allow a private Local Area Network (LAN) to be
securely connected to the Internet. The MWR222 can be used to prevent theft,
destruction and modification of data, as well as log events, which may be
important to the security of your network.
The MWR222 is installed between the LAN and a broadband modem connecting to
the Internet. This allows it to act as a secure gateway for all data passing
between the Internet and the LAN.
The MWR222 has one Ethernet WAN port and four Ethernet LAN ports, which are
used to physically separate the network into two areas. The WAN (Wide Area
Network) port attaches to the broadband (cable or DSL) modem to the Internet.
The LAN (Local Area Network) port attaches to a network of computers, which
needs security from the outside world. These computers will have access to
Internet services such as e-mail, FTP and the World Wide Web. However,
"inbound access" is not allowed (by default) unless the remote host is authorized
to use a specific service.
18.4

General Firewall Screen

Use this screen to enable or disable the MWR222's firewall, and set up firewall
logs. Click Security > Firewall to open the General screen.
Figure 95 Security > Firewall > General
The following table describes the labels in this screen.
MWR222 User's Guide
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