Table of Contents
ZyWALL 5/35/70 Series User’s Guide
25
44.3 Configuring a Server behind NAT
....................................................................................
681
44.4 General NAT Examples
...................................................................................................
683
44.4.1 Internet Access Only
..............................................................................................
683
44.4.2 Example 2: Internet Access with a Default Server
.................................................
685
44.4.3 Example 3: Multiple Public IP Addresses With Inside Servers
..............................
685
44.4.4 Example 4: NAT Unfriendly Application Programs
.................................................
689
44.5 Trigger Port Forwarding
...................................................................................................
690
44.5.1 Two Points To Remember About Trigger Ports
......................................................
690
Chapter
45
Introducing the ZyWALL Firewall
........................................................................................
693
45.1 Using ZyWALL SMT Menus
............................................................................................
693
45.1.1 Activating the Firewall
............................................................................................
693
Chapter
46
Filter Configuration
...............................................................................................................
695
46.1 Introduction to Filters
.......................................................................................................
695
46.1.1 The Filter Structure of the ZyWALL
........................................................................
696
46.2 Configuring a Filter Set
....................................................................................................
698
46.2.1 Configuring a Filter Rule
........................................................................................
699
46.2.2 Configuring a TCP/IP Filter Rule
............................................................................
700
46.2.3 Configuring a Generic Filter Rule
...........................................................................
702
46.3 Example Filter
..................................................................................................................
704
46.4 Filter Types and NAT
.......................................................................................................
706
46.5 Firewall Versus Filters
.....................................................................................................
706
46.5.1 Packet Filtering:
.....................................................................................................
706
46.5.2 Firewall
...................................................................................................................
707
46.6 Applying a Filter
..............................................................................................................
707
46.6.1 Applying LAN Filters
...............................................................................................
708
46.6.2 Applying DMZ Filters
..............................................................................................
708
46.6.3 Applying Remote Node Filters
...............................................................................
709
Chapter
47
SNMP Configuration
.............................................................................................................
711
47.1 SNMP Configuration
.........................................................................................................
711
47.2 SNMP Traps
....................................................................................................................
712
Chapter
48
System Information & Diagnosis
.........................................................................................
713
48.1 Introduction to System Status
..........................................................................................
713
48.2 System Status
..................................................................................................................
713
48.3 System Information and Console Port Speed
..................................................................
715
48.3.1 System Information
................................................................................................
715