ZyXEL Communications 5 Series - Manual (Page 26)

ZyWALL 5/35/70 Series User’s Guide
26 Table of Contents
40.3 Remote Node Profile Setup ...........................................................................600
40.3.1 Ethernet Encapsulation .........................................................................600
40.3.2 PPPoE Encapsulation ...........................................................................602
40.3.2.1 Outgoing Authentication Protocol ................................................602
40.3.2.2 Nailed-Up Connection .................................................................602
40.3.2.3 Metric ..........................................................................................603
40.3.3 PPTP Encapsulation .............................................................................603
40.4 Edit IP .............................................................................................................604
40.5 Remote Node Filter ........................................................................................606
40.6 Traffic Redirect ...............................................................................................607
Chapter 41
IP Static Route Setup ........................................................................................... 609
41.1 IP Static Route Setup .....................................................................................609
Chapter 42
Network Address Translation (NAT) ................................................................... 611
42.1 Using NAT ...................................................................................................... 611
42.1.1 SUA (Single User Account) Versus NAT .............................................. 611
42.1.2 Applying NAT ........................................................................................ 611
42.2 NAT Setup ......................................................................................................613
42.2.1 Address Mapping Sets ..........................................................................614
42.2.1.1 SUA Address Mapping Set .........................................................614
42.2.1.2 User-Defined Address Mapping Sets ..........................................615
42.2.1.3 Ordering Your Rules ....................................................................616
42.3 Configuring a Server behind NAT ..................................................................618
42.4 General NAT Examples ..................................................................................621
42.4.1 Internet Access Only .............................................................................621
42.4.2 Example 2: Internet Access with a Default Server ................................623
42.4.3 Example 3: Multiple Public IP Addresses With Inside Servers .............623
42.4.4 Example 4: NAT Unfriendly Application Programs ...............................627
42.5 Trigger Port Forwarding .................................................................................628
42.5.1 Two Points To Remember About Trigger Ports .....................................628
Chapter 43
Introducing the ZyWALL Firewall ....................................................................... 631
43.1 Using ZyWALL SMT Menus ...........................................................................631
43.1.1 Activating the Firewall ...........................................................................631
Chapter 44
Filter Configuration .............................................................................................. 633
44.1 Introduction to Filters ......................................................................................633
44.1.1 The Filter Structure of the ZyWALL ......................................................634