Chapter 4 Firewall Protection; About Firewall Protection - NETGEAR SRX5308 Reference Manual

Firewall Protection
4.
This chapter describes how to use the firewall features of the VPN firewall to protect your
network. The chapter contains the following sections:
•

About Firewall Protection

• Use Rules to Block or Allow Specific Kinds of Traffic
• Configure Other Firewall Features
• Create Services, QoS Profiles, and Bandwidth Profiles
• Set a Schedule to Block or Allow Specific Traffic
• Content Filtering
• 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
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 Internet-sharing 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.
Manage Groups and Hosts (LAN Groups)
82
4
on page 67.