ZyXEL Communications ZYWALL 2 PLUS User Manual page 22

Table of Contents
37.2.2 Configuring a TCP/IP Filter Rule ............................................................................ 524
37.2.3 Configuring a Generic Filter Rule ........................................................................... 527
37.3 Example Filter .................................................................................................................. 528
37.4 Filter Types and NAT ....................................................................................................... 530
37.5 Firewall Versus Filters ..................................................................................................... 530
37.5.1 Packet Filtering: ..................................................................................................... 530
37.5.2 Firewall ................................................................................................................... 531
37.6 Applying a Filter .............................................................................................................. 531
37.6.1 Applying LAN Filters ............................................................................................... 532
37.6.2 Applying DMZ Filters .............................................................................................. 532
37.6.3 Applying Remote Node Filters ............................................................................... 533
Chapter 38
SNMP Configuration ............................................................................................................. 535
38.1 SNMP Configuration ........................................................................................................ 535
38.2 SNMP Traps .................................................................................................................... 536
Chapter 39
System Information & Diagnosis......................................................................................... 537
39.1 Introduction to System Status .......................................................................................... 537
39.2 System Status .................................................................................................................. 537
39.3 System Information and Console Port Speed .................................................................. 539
39.3.1 System Information ................................................................................................ 539
39.3.2 Console Port Speed ............................................................................................... 540
39.4 Log and Trace .................................................................................................................. 540
39.4.1 Viewing Error Log ................................................................................................... 540
39.4.2 Syslog Logging ....................................................................................................... 541
39.4.3 Call-Triggering Packet ............................................................................................ 544
39.5 Diagnostic ........................................................................................................................ 545
39.5.1 WAN DHCP ............................................................................................................ 546
Chapter 40
Firmware and Configuration File Maintenance .................................................................. 549
40.1 Introduction ...................................................................................................................... 549
40.2 Filename Conventions ..................................................................................................... 549
40.3 Backup Configuration ...................................................................................................... 550
40.3.1 Backup Configuration ............................................................................................. 550
40.3.2 Using the FTP Command from the Command Line ............................................... 551
40.3.3 Example of FTP Commands from the Command Line .......................................... 552
40.3.4 GUI-based FTP Clients .......................................................................................... 552
40.3.5 File Maintenance Over WAN .................................................................................. 552
40.3.6 Backup Configuration Using TFTP ......................................................................... 553
40.3.7 TFTP Command Example ...................................................................................... 553
22
ZyWALL 2 Plus User's Guide