ZyWALL 10~100 Series Internet Security Gateway
13.2
Types of Firewalls.................................................................................................................13-1
13.3
Introduction to ZyXEL's Firewall ........................................................................................13-2
13.4
Denial of Service...................................................................................................................13-3
13.5
Stateful Inspection ................................................................................................................13-7
13.6
13.7
14.1
Remote Management and the Firewall .................................................................................14-1
14.2
Access Methods ....................................................................................................................14-1
14.3
Using ZyWALL SMT Menus ...............................................................................................14-1
15.1
15.2
Enabling the Firewall............................................................................................................15-1
15.3
Attack Alert...........................................................................................................................15-2
16.1
Rules Overview.....................................................................................................................16-1
16.2
Rule Logic Overview............................................................................................................16-2
16.3
16.4
Rule Summary ......................................................................................................................16-5
16.5
Predefined Services...............................................................................................................16-8
16.6
Custom Ports.......................................................................................................................16-15
16.7
16.8
Example Firewall Rule .......................................................................................................16-17
Chapter 17 Content Filtering ................................................................................................................17-1
17.1
Categories .............................................................................................................................17-1
17.2
Free .......................................................................................................................................17-5
17.3
iCard .....................................................................................................................................17-7
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Table of Contents