Zyxel-communications 70 Series Manual de usuario descargar pdf (Pagina 26)

ZyWALL 5/35/70 Series User’s Guide

Table of Contents 26

42.2 NAT Setup ......................................................................................................564

42.2.1 Address Mapping Sets ..........................................................................565

42.2.1.1 SUA Address Mapping Set .........................................................565

42.2.1.2 User-Defined Address Mapping Sets ..........................................566

42.2.1.3 Ordering Your Rules ....................................................................567

42.3 Configuring a Server behind NAT ..................................................................569

42.4 General NAT Examples ..................................................................................572

42.4.1 Internet Access Only .............................................................................572

42.4.2 Example 2: Internet Access with an Default Server ..............................574

42.4.3 Example 3: Multiple Public IP Addresses With Inside Servers .............574

42.4.4 Example 4: NAT Unfriendly Application Programs ...............................578

42.5 Trigger Port Forwarding .................................................................................579

42.5.1 Two Points To Remember About Trigger Ports .....................................579

Chapter 43

Introducing the ZyWALL Firewall ....................................................................... 582

43.1 Using ZyWALL SMT Menus ...........................................................................582

43.1.1 Activating the Firewall ...........................................................................582

Chapter 44

Filter Configuration.............................................................................................. 584

44.1 Introduction to Filters ......................................................................................584

44.1.1 The Filter Structure of the ZyWALL ......................................................585

44.2 Configuring a Filter Set ..................................................................................587

44.2.1 Configuring a Filter Rule .......................................................................588

44.2.2 Configuring a TCP/IP Filter Rule ..........................................................589

44.2.3 Configuring a Generic Filter Rule .........................................................591

44.3 Example Filter ................................................................................................593

44.4 Filter Types and NAT ......................................................................................595

44.5 Firewall Versus Filters ....................................................................................595

44.6 Applying a Filter ............................................................................................596

44.6.1 Applying LAN Filters .............................................................................596

44.6.2 Applying DMZ Filters ............................................................................596

44.6.3 Applying Remote Node Filters ..............................................................597

Chapter 45

SNMP Configuration ............................................................................................ 598

45.1 SNMP Configuration ......................................................................................598

45.2 SNMP Traps ...................................................................................................599

Chapter 46

System Information & Diagnosis........................................................................ 600

46.1 Introduction to System Status ........................................................................600

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Zyxel-communications 70 Series Manual de usuario Pagina 26