5. Firewall Protection

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This chapter describes how to use the firewall features of the wireless VPN firewall to protect your network. The chapter contains the following sections:

About Firewall Protection

Overview of Rules to Block or Allow Specific Kinds of Traffic

Configure LAN WAN Rules

Configure DMZ WAN Rules

Configure LAN DMZ Rules

Examples of Firewall Rules

Configure Other Firewall Features

Services, Bandwidth Profiles, and QoS Profiles

Configure Content Filtering

Set a Schedule to Block or Allow Specific Traffic

Enable Source MAC Filtering

Set Up IP/MAC Bindings

Configure Port Triggering

Configure Universal Plug and Play

About Firewall Protection

A firewall protects one network (the trusted network, such as your LAN) from another (the untrusted network, such as the Internet), while allowing communication between the two. You can further segment keyword blocking to certain known groups. For information about how to set up LAN groups, see Manage IPv4 Groups and Hosts (IPv4 LAN Groups) on page 67.

For IPv4, a firewall incorporates the functions of a Network Address Translation (NAT) router, protects the trusted network from hacker intrusions or attacks, and controls the types of traffic that can flow between the Internet, DMZ, and LAN. Unlike simple NAT routers, a firewall uses a process called stateful packet inspection to protect your network from attacks and intrusions. NAT performs a limited stateful inspection in that it considers whether the

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NETGEAR FVS318N manual About Firewall Protection, 128