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Firmware User Guide
Advanced Security Options ................................. 10-5
User access password ....................................... 10-7
User menu differences....................................... 10-8
User Accounts ........................................................... 10-15
Telnet Access............................................................ 10-17
About Filters and Filter Sets........................................ 10-18
What’s a filter and what’s a filter set? ............... 10-18
How filter sets work ......................................... 10-18
How individual filters work ................................ 10-20
Design guidelines ............................................ 10-25
Working with IP Filters and Filter Sets.......................... 10-26
Adding a filter set............................................. 10-27
Deleting a filter set .......................................... 10-31
A sample filter set............................................ 10-31
Policy-based Routing using Filtersets........................... 10-34
TOS field matching........................................... 10-35
Firewall Tutorial ......................................................... 10-37
General firewall terms ...................................... 10-37
Basic IP packet components............................. 10-37
Basic protocol types......................................... 10-37
Firewall design rules ........................................ 10-38
Filter basics..................................................... 10-40
Example filters................................................. 10-41
Configuration Management......................................... 10-44
TFTP and X-Modem........................................... 10-47
Call Filtering .............................................................. 10-48
Chapter 11 — Utilities and Diagnostics...................................11-1
Ping............................................................................ 11-2
Trace Route................................................................. 11-4
Telnet Client................................................................ 11-5
Factory Defaults .......................................................... 11-6
Transferring Configuration and Firmware Files with TFTP.. 11-6