ZyXEL Communications ZyXEL ZyWALL 2WE - Manual (Page 10)

ZyWALL 2 and ZyWALL 2WE
x Table of Contents
12.5 General NAT Examples......................................................................................................12-17
12.6 Trigger Port Forwarding .....................................................................................................12-24
Firewall and Content Filters .........................................................................................................................IV
Chapter 13 Firewalls ..............................................................................................................................13-1
13.1 Introduction to Firewalls.......................................................................................................13-1
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 Guidelines For Enhancing Security With Your Firewall ....................................................13-11
13.7 Packet Filtering Vs Firewall ...............................................................................................13-12
Chapter 14 Introducing the ZyWALL Firewall ...................................................................................14-1
14.1 Introduction to the ZyWALL Firewall..................................................................................14-1
14.2 Remote Management and the Firewall .................................................................................14-1
14.3 Access Methods ....................................................................................................................14-1
14.4 Using ZyWALL SMT Menus ...............................................................................................14-1
Chapter 15 Firewall Configuration.......................................................................................................15-1
15.1 Introduction to Firewall Configuration .................................................................................15-1
15.2 Enabling the Firewall............................................................................................................15-1
15.3 Attack Alert...........................................................................................................................15-3
Chapter 16 Creating Custom Rules ......................................................................................................16-1
16.1 Introduction to Custom Rules ...............................................................................................16-1
16.2 Rule Logic Overview............................................................................................................16-2
16.3 Connection Direction Examples ...........................................................................................16-3
16.4 Rule Summary ......................................................................................................................16-5
16.5 Predefined Services...............................................................................................................16-7
16.6 Custom Ports.......................................................................................................................16-14