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Table of Contents
ZyWALL 2 Plus User’s Guide
21
Chapter 33
Remote Node Setup..............................................................................................................487
33.1 Introduction to Remote Node Setup ................................................................................ 487
33.2 Remote Node Setup ........................................................................................................ 487
33.3 Remote Node Profile Setup ............................................................................................. 487
33.3.1 Ethernet Encapsulation .......................................................................................... 488
33.3.2 PPPoE Encapsulation ............................................................................................ 489
33.3.3 PPTP Encapsulation .............................................................................................. 491
33.4 Edit IP .............................................................................................................................. 492
33.5 Remote Node Filter ......................................................................................................... 494
33.6 Traffic Redirect ................................................................................................................ 495
Chapter 34
IP Static Route Setup............................................................................................................497
34.1 IP Static Route Setup ...................................................................................................... 497
Chapter 35
Network Address Translation (NAT)....................................................................................499
35.1 Using NAT ........................................................................................................................ 499
35.1.1 SUA (Single User Account) Versus NAT ................................................................ 499
35.1.2 Applying NAT ......................................................................................................... 499
35.2 NAT Setup ....................................................................................................................... 501
35.2.1 Address Mapping Sets ........................................................................................... 501
35.3 Configuring a Server behind NAT .................................................................................... 506
35.4 General NAT Examples ................................................................................................... 508
35.4.1 Internet Access Only .............................................................................................. 508
35.4.2 Example 2: Internet Access with a Default Server ................................................. 510
35.4.3 Example 3: Multiple Public IP Addresses With Inside Servers .............................. 510
35.4.4 Example 4: NAT Unfriendly Application Programs ................................................. 513
35.5 Trigger Port Forwarding ...................................................................................................515
35.5.1 Two Points To Remember About Trigger Ports ...................................................... 515
Chapter 36
Introducing the ZyWALL Firewall........................................................................................517
36.1 Using ZyWALL SMT Menus ............................................................................................ 517
36.1.1 Activating the Firewall ............................................................................................ 517
Chapter 37
Filter Configuration...............................................................................................................519
37.1 Introduction to Filters ....................................................................................................... 519
37.1.1 The Filter Structure of the ZyWALL ........................................................................ 520
37.2 Configuring a Filter Set .................................................................................................... 522
37.2.1 Configuring a Filter Rule ........................................................................................ 524