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Netopia Firmware 4000-Series User Manual

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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

Factor y Defaults .......................................................... 11-6

Transferring Configuration and Firmware Files with TFTP.. 11-6