Reference Guide

Contents ix
G
Allowing VPNs through a Firewall................................. 15-24
PPTP example.................................................. 15-25
ATMP example ................................................. 15-28
Chapter 16 — Security ...........................................................16-1
Suggested Security Measures....................................... 16-1
User Accounts............................................................. 16-1
Dial-in Console Access................................................. 16-4
RADIUS Client Support................................................. 16-5
RADIUS client configuration................................. 16-5
Warning alerts ................................................... 16-7
Enable SmartStart/SmartView/Web Server................... 16-8
Telnet Access.............................................................. 16-9
About Filters and Filter Sets.......................................... 16-9
What’s a filter and what’s a filter set?.................. 16-9
How filter sets work............................................ 16-9
How individual filters work................................. 16-11
Design guidelines............................................. 16-16
Working with IP Filters and Filter Sets.......................... 16-17
Adding a filter set............................................. 16-18
Viewing filter sets............................................. 16-22
Modifying filter sets.......................................... 16-22
Deleting a filter set........................................... 16-23
A sample IP filter set........................................ 16-23
IPX Filters.................................................................. 16-27
IPX packet filters.............................................. 16-28
IPX packet filter sets ........................................ 16-29
IPX SAP filters.................................................. 16-31
IPX SAP filter sets ............................................ 16-33
Firewall Tutorial ......................................................... 16-35
General firewall terms ...................................... 16-35
Basic IP packet components............................. 16-35
Basic protocol types......................................... 16-35