ZyXEL Communications P-660HN-F1 manual 15

	Table of Contents
9.1.3 Firewall Rule Setup Example ...................................................................................	152
9.2 The Firewall General Screen .............................................................................................	156
9.3 The Firewall Rule Screen ..................................................................................................	157
9.3.1 Configuring Firewall Rules ......................................................................................	159
9.3.2 Customized Services ..............................................................................................	162
9.3.3 Configuring a Customized Service .........................................................................	162
9.4 The Firewall Threshold Screen ..........................................................................................	163
9.4.1 Threshold Values .....................................................................................................	164
9.4.2 Configuring Firewall Thresholds ...............................................................................	164
9.5 Firewall Technical Reference .............................................................................................	166
9.5.1 Firewall Rules Overview ...........................................................................................	166
9.5.2 Guidelines For Enhancing Security With Your Firewall ............................................	168
9.5.3 Security Considerations ...........................................................................................	168
9.5.4 Triangle Route ..........................................................................................................	168
Chapter 10
Content Filtering ...................................................................................................................	171
10.1 Overview .........................................................................................................................	171
10.1.1 What You Can Do in the Content Filter Screens ....................................................	171
10.1.2 What You Need to Know About Content Filtering ..................................................	171
10.1.3 Before You Begin ...................................................................................................	171
10.1.4 Content Filtering Example ......................................................................................	171
10.2 The Keyword Screen ......................................................................................................	173
10.3 The Schedule Screen .....................................................................................................	174
10.4 The Trusted Screen ........................................................................................................	175
Chapter 11
Packet Filter...........................................................................................................................	177
11.1 Overview ..........................................................................................................................	177
11.1.1 What You Can Do in the Packet Filter Screen ........................................................	177
11.1.2 What You Need to Know About the Packet Filter ...................................................	177
11.2 The Packet Filter Screen .................................................................................................	177
11.2.1 Editing Protocol Filters ...........................................................................................	178
11.2.2 Configuring Protocol Filter Rules ...........................................................................	179
11.2.3 Editing Generic Filters ............................................................................................	181
11.2.4 Configuring Generic Packet Rules .........................................................................	182
11.3 Packet Filter Technical Reference ...................................................................................	183
11.3.1 Filter Types and NAT ..............................................................................................	183
11.3.2 Firewall Versus Filters ............................................................................................	184
Chapter 12
Certificates ............................................................................................................................	187
12.1 Overview .........................................................................................................................	187
P-660HN-F1 User’s Guide	15