ZyXEL Communications ZyWall 35 User Manual page 22

ZyWALL 35 User's Guide
34.3 Configuring a Server behind NAT ..................................................................476
34.4 General NAT Examples ..................................................................................479
34.5 Trigger Port Forwarding .................................................................................486
Chapter 35
Introducing the ZyWALL Firewall ....................................................................... 489
35.1 Using ZyWALL SMT Menus ...........................................................................489
Chapter 36
Filter Configuration .............................................................................................. 491
36.1 Introduction to Filters ......................................................................................491
36.2 Configuring a Filter Set ..................................................................................494
36.3 Example Filter ................................................................................................500
36.4 Filter Types and NAT ......................................................................................502
36.5 Firewall Versus Filters ....................................................................................502
36.6 Applying a Filter ............................................................................................503
Chapter 37
SNMP Configuration ............................................................................................ 505
37.1 SNMP Configuration ......................................................................................505
37.2 SNMP Traps ...................................................................................................506
Chapter 38
System Information & Diagnosis ........................................................................ 507
38.1 Introduction to System Status ........................................................................507
38.2 System Status ................................................................................................507
38.3 System Information and Console Port Speed ................................................509
38.4 Log and Trace ................................................................................................511
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34.4.1 Internet Access Only .............................................................................479
34.4.2 Example 2: Internet Access with an Default Server ..............................480
34.4.3 Example 3: Multiple Public IP Addresses With Inside Servers .............480
34.4.4 Example 4: NAT Unfriendly Application Programs ...............................484
34.5.1 Two Points To Remember About Trigger Ports .....................................486
35.1.1 Activating the Firewall ...........................................................................489
36.1.1 The Filter Structure of the ZyWALL ......................................................492
36.2.1 Configuring a Filter Rule .......................................................................495
36.2.2 Configuring a TCP/IP Filter Rule ..........................................................496
36.2.3 Configuring a Generic Filter Rule .........................................................498
36.6.1 Applying LAN Filters .............................................................................503
36.6.2 Applying DMZ Filters ............................................................................503
36.6.3 Applying Remote Node Filters ..............................................................504
38.3.1 System Information ...............................................................................509
38.3.2 Console Port Speed ..............................................................................510