ZyXEL Communications P-335WT User Manual page 13

9.7 Trigger Port Forwarding Screen .......................................................................144
Chapter 10
Firewall.................................................................................................................. 146
10.1 Introduction to Firewall ...................................................................................146
10.2 General Firewall Screen .................................................................................147
10.3 Services Screen ............................................................................................148
Chapter 11
Content Filtering ................................................................................................. 152
11.1 Introduction to Content Filtering .....................................................................152
11.2 Restrict Web Features ....................................................................................152
11.3 Days and Times ..............................................................................................152
11.4 Filter Screen ...................................................................................................152
11.5 Schedule ........................................................................................................154
11.6 Customizing Keyword Blocking URL Checking ..............................................155
Chapter 12
Introduction to IPSec ........................................................................................... 158
12.1 VPN Overview ................................................................................................158
12.2 IPSec Architecture .........................................................................................159
12.3 Encapsulation .................................................................................................160
12.4 IPSec and NAT ...............................................................................................161
Table of Contents
10.1.1 What is a Firewall? ...............................................................................146
10.1.2 Stateful Inspection Firewall. ..................................................................146
10.1.3 About the Prestige Firewall ...................................................................146
10.1.4 Guidelines For Enhancing Security With Your Firewall ........................147
11.6.1 Domain Name or IP Address URL Checking ........................................155
11.6.2 Full Path URL Checking ........................................................................156
11.6.3 File Name URL Checking .....................................................................156
12.1.1 IPSec ....................................................................................................158
12.1.2 Security .................................................................................................158
12.1.3 Other Terminology ................................................................................158
12.1.3.1 Encryption ...................................................................................158
12.1.3.2 Data Confidentiality .....................................................................159
12.1.3.3 Data Integrity ...............................................................................159
12.1.3.4 Data Origin Authentication ..........................................................159
12.1.4 VPN Applications ..................................................................................159
12.2.1 IPSec Algorithms ..................................................................................160
12.2.2 Key Management ..................................................................................160
12.3.1 Transport Mode ....................................................................................161
12.3.2 Tunnel Mode .........................................................................................161
P-335 Series User's Guide
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