An approach to using filters, Working with ip filters and filter sets, Working with ip filters and filter sets -12 – Netopia R5300 User Manual
Page 190
13-12 User’s Reference Guide
option in the answer profile, PAP or CHAP in connection profiles, callback, and general awareness of how
your network may be vulnerable.
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The ultimate goal of network security is to prevent unauthorized access to the network without compromising
authorized access. Using filter sets is par t of reaching that goal.
Each filter set you design will be based on one of the following approaches:
■
That which is not expressly prohibited is permitted.
■
That which is not expressly permitted is prohibited.
It is strongly recommended that you take the latter, and safer, approach to all of your filter set designs.
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This section covers IP filters and filter sets. For working with IPX filters and filter sets, see
.
To work with filters and filter sets, begin by accessing the filter set screens.
Note: Make sure you understand how filters work before attempting to use them. Read the section
filters and filter sets,” beginning on page 13-4
.
Main
Menu
System
Configuration
Filter
Sets
Filter Sets
Add Filter Set...
Display/Change Filter Set...
Delete Filter Set...
Return/Enter to modify an existing Filter Set.
Set Up IP Filter Sets (Firewalls) from this and the following Menus.