OX253P User
’
s Guide
119
C
H A P T E R
11
The Firewall Screens
11.1 Overview
Use the
TOOLS > Firewall
screens to manage OX253P
’
s firewall security
measures.
Originally, the term
firewall
referred to a construction technique designed to
prevent the spread of fire from one room to another. The networking term
"firewall" is a system or group of systems that enforces an access-control policy
between two networks. It may also be defined as a mechanism used to protect a
trusted network from an untrusted network. Of course, firewalls cannot solve
every security problem.
A firewall is one of the mechanisms used to establish a network security perimeter
in support of a network security policy. It should never be the only mechanism or
method employed. For a firewall to guard effectively, you must design and deploy
it appropriately. This requires integrating the firewall into a broad information-
security policy. In addition, specific policies must be implemented within the
firewall itself.
11.1.1 What You Can Do in This Chapter
•
The
Firewall Setting
screen (
Section 11.2 on page 120
) lets you configure the
basic settings for your firewall.
•
The
Service Setting
screen (
Section 11.3 on page 123
) lets you enable service
blocking, set up the date and time service blocking is effective, and to maintain
the list of services you want to block.
11.1.2 What You Need to Know
The following terms and concepts may help as you read through this chapter.
About the OX253P Firewall
The OX253P firewall is a stateful inspection firewall and is designed to protect
against Denial of Service attacks when activated. The OX253P's purpose is to
allow a private Local Area Network (LAN) to be securely connected to the Internet.
Summary of Contents for OX253P
Page 9: ...Contents Overview OX253P User s Guide 10 ...
Page 16: ...17 PART I User s Guide ...
Page 17: ...18 ...
Page 21: ...Chapter 1 Getting Started OX253P User s Guide 22 ...
Page 27: ...Chapter 2 Introducing the Web Configurator OX253P User s Guide 28 ...
Page 44: ...45 PART II Technical Reference ...
Page 45: ...46 ...
Page 85: ...Chapter 8 The NAT Configuration Screens OX253P User s Guide 86 ...
Page 117: ...Chapter 10 The Certificates Screens OX253P User s Guide 118 ...
Page 127: ...Chapter 11 The Firewall Screens OX253P User s Guide 128 ...
Page 171: ...Chapter 16 The Status Screen OX253P User s Guide 172 ...
Page 179: ...Chapter 17 Troubleshooting OX253P User s Guide 180 ...
Page 183: ...Chapter 18 Product Specifications OX253P User s Guide 184 ...
Page 215: ...Appendix B Setting Up Your Computer s IP Address OX253P User s Guide 216 ...
Page 227: ...Appendix C Pop up Windows JavaScripts and Java Permissions OX253P User s Guide 228 ...
Page 278: ...Index OX253P User s Guide 279 ...
Page 279: ...Index OX253P User s Guide 280 ...