ZyXEL Communications P-334WT User Manual page 13

9.2 General Firewall Screen ...................................................................................148
9.3 Services Screen ..............................................................................................149
Chapter 10
Content Filtering ................................................................................................. 153
10.1 Introduction to Content Filtering .....................................................................153
10.2 Restrict Web Features ...................................................................................153
10.3 Days and Times .............................................................................................153
10.4 Filter Screen ...................................................................................................153
10.5 Schedule ........................................................................................................155
10.6 Customizing Keyword Blocking URL Checking ..............................................156
Chapter 11
Introduction to IPSec ........................................................................................... 159
11.1 VPN Overview ................................................................................................159
11.2 IPSec Architecture ..........................................................................................160
11.3 Encapsulation .................................................................................................161
11.4 IPSec and NAT ...............................................................................................162
Chapter 12
VPN Screens....................................................................................................... 165
12.1 VPN/IPSec Overview .....................................................................................165
12.2 IPSec Algorithms ............................................................................................165
12.3 My IP Address ................................................................................................166
12.4 Secure Gateway Address ..............................................................................166
Table of Contents
9.1.4 Guidelines For Enhancing Security With Your Firewall ..........................148
10.6.1 Domain Name or IP Address URL Checking ........................................156
10.6.2 Full Path URL Checking .......................................................................156
10.6.3 File Name URL Checking .....................................................................157
11.1.1 IPSec ....................................................................................................159
11.1.2 Security .................................................................................................159
11.1.3 Other Terminology .................................................................................159
11.1.3.1 Encryption ....................................................................................159
11.1.3.2 Data Confidentiality .....................................................................160
11.1.3.3 Data Integrity ...............................................................................160
11.1.3.4 Data Origin Authentication ...........................................................160
11.1.4 VPN Applications ..................................................................................160
11.2.1 IPSec Algorithms ..................................................................................161
11.2.2 Key Management ..................................................................................161
11.3.1 Transport Mode .....................................................................................162
11.3.2 Tunnel Mode .........................................................................................162
12.2.1 AH (Authentication Header) Protocol ....................................................165
12.2.2 ESP (Encapsulating Security Payload) Protocol ..................................165
P-334WT User's Guide
13