ZyXEL Communications P-661HW Chapter, Chapter, Chapter, Content Filtering, Introduction to IPSec

P-661H/HW Series User’s Guide

9.4.2 Alerts .......................................................................................................	160
9.5 Triangle Route ..................................................................................................	160
9.5.1 The “Triangle Route” Problem ................................................................	160
9.5.2 Solving the “Triangle Route” Problem .....................................................	161
9.6 General Firewall Policy .................................................................................	162
9.7 Firewall Rules Summary .................................................................................	163
9.7.1 Configuring Firewall Rules ....................................................................	164
9.7.2 Customized Services .............................................................................	167
9.7.3 Configuring A Customized Service ........................................................	168
9.8 Example Firewall Rule .....................................................................................	168
9.9 Predefined Services .........................................................................................	172
9.10 Anti-Probing ...................................................................................................	174
9.11 DoS Thresholds .............................................................................................	175
9.11.1 Threshold Values ..................................................................................	175
9.11.2 Half-Open Sessions ..............................................................................	176
9.11.2.1 TCP Maximum Incomplete and Blocking Time ............................	176
9.11.3 Configuring Firewall Thresholds ...........................................................	177
Chapter 10
Trend Micro Security Services............................................................................	179
10.1 Trend Micro Security Services Overview .......................................................	179
10.1.1 TMSS Web Page ..................................................................................	179
10.2 Configuring TMSS on the ZyXEL Device .......................................................	182
10.2.1 General TMSS Settings ........................................................................	182
10.2.2 TMSS Exception List ............................................................................	184
10.3 TMSS Virus Protection ...................................................................................	185
10.4 Parental Controls ...........................................................................................	186
10.4.1 Parental Controls Statistics ...................................................................	188
10.5 ActiveX Controls in Internet Explorer .............................................................	189
Chapter 11
Content Filtering ..................................................................................................	193
11.1 Content Filtering Overview ............................................................................	193
11.2 Configuring Keyword Blocking ......................................................................	193
11.3 Configuring the Schedule ..............................................................................	194
11.4 Configuring Trusted Computers ....................................................................	195
Chapter 12
Introduction to IPSec ...........................................................................................	197
12.1 VPN Overview ................................................................................................	197
12.1.1 IPSec ....................................................................................................	197
12.1.2 Security Association .............................................................................	197
12.1.3 Other Terminology ................................................................................	197

16 Table of Contents