ZyXEL Communications ZyXEL ZyWALL 2WG - Manual (Page 25)

Table of Contents
ZyWALL 2WG User’s Guide
25
39.1.1 The Filter Structure of the ZyWALL ........................................................................ 556
39.2 Configuring a Filter Set .................................................................................................... 558
39.2.1 Configuring a Filter Rule ........................................................................................ 559
39.2.2 Configuring a TCP/IP Filter Rule ............................................................................ 560
39.2.3 Configuring a Generic Filter Rule ........................................................................... 562
39.3 Example Filter .................................................................................................................. 564
39.4 Filter Types and NAT ....................................................................................................... 566
39.5 Firewall Versus Filters ..................................................................................................... 566
39.5.1 Packet Filtering: ..................................................................................................... 566
39.5.2 Firewall ................................................................................................................... 567
39.6 Applying a Filter .............................................................................................................. 567
39.6.1 Applying LAN Filters ............................................................................................... 568
39.6.2 Applying DMZ Filters .............................................................................................. 568
39.6.3 Applying Remote Node Filters ............................................................................... 569
Chapter 40
SNMP Configuration .............................................................................................................571
40.1 SNMP Configuration ........................................................................................................ 571
40.2 SNMP Traps .................................................................................................................... 572
Chapter 41
System Information & Diagnosis......................................................................................... 573
41.1 Introduction to System Status .......................................................................................... 573
41.2 System Status .................................................................................................................. 573
41.3 System Information and Console Port Speed .................................................................. 575
41.3.1 System Information ................................................................................................ 575
41.3.2 Console Port Speed ............................................................................................... 576
41.4 Log and Trace .................................................................................................................. 577
41.4.1 Viewing Error Log ................................................................................................... 577
41.4.2 Syslog Logging ....................................................................................................... 578
41.4.3 Call-Triggering Packet ............................................................................................ 581
41.5 Diagnostic ........................................................................................................................ 582
41.5.1 WAN DHCP ............................................................................................................ 583
Chapter 42
Firmware and Configuration File Maintenance .................................................................. 585
42.1 Introduction ...................................................................................................................... 585
42.2 Filename Conventions ..................................................................................................... 585
42.3 Backup Configuration ...................................................................................................... 586
42.3.1 Backup Configuration ............................................................................................. 586
42.3.2 Using the FTP Command from the Command Line ............................................... 587
42.3.3 Example of FTP Commands from the Command Line .......................................... 587
42.3.4 GUI-based FTP Clients .......................................................................................... 588