NETGEAR STM150EW-100NAS Router User Manual


 
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5
5. Firewall Protection
This chapter describes how to use the firewall features of the UTM to protect your network. This
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
Create Services, QoS Profiles, Bandwidth Profiles, and Traffic Meter Profiles
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
Enable and Configure the Intrusion Prevention System
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 Groups and Hosts (LAN Groups) on page 111.
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 two networks. Unlike simple NAT routers, a firewall uses a process
called stateful packet inspection to protect your network from attacks and intrusions. NAT
performs a very limited stateful inspection in that it considers whether the incoming packet is
in response to an outgoing request, but true stateful packet inspection goes far beyond NAT.