Table of Contents
User’s Guide
16
15.4.1 Certificate Authorities .................................................................. ........................... 184
15.4.2 Verifying a Certificate ..................................................... ........................................ 186
Chapter 16
The Firewall Screens............................................................................................................189
16.1 Overview ......................................................................................................... .................189
16.1.1 What You Can Do in This Chapter ......................................................................... 189
16.1.2 What You Need to Know ........................................................................................ 189
16.2 Firewall Setting ..................................................... ........................................................... 190
16.2.1 Firewall Rule Directions ......................................................................................... 190
16.2.2 Triangle Route ........................................................................................................ 191
16.2.3 General Options ............................................................. ........................................ 192
16.3 Services ...................................................................................... ..................................... 193
16.4 Technical Reference ........................................................................................................ 194
16.4.1 Stateful Inspection Firewall. .............................. ..................................................... 194
16.4.2 Guidelines For Enhancing Security With Your Firewall .......................................... 195
16.4.3 The “Triangle Route” Problem ................................................................................ 195
Chapter 17
Content Filter.........................................................................................................................199
17.1 Overview ......................................................................................................... .................199
17.1.1 What You Can Do in This Chapter ......................................................................... 199
17.2 Filter ................................................................................................................................ . 200
17.3 Schedule .......................................................................................................................... 2 02
Chapter 18
The Remote Management Screens..................................................................................... 203
18.1 Overview ......................................................................................................... .................203
18.1.1 What You Can Do in This Chapter ......................................................................... 203
18.1.2 What You Need to Know ........................................................................................ 204
18.2 WWW .............................................................................................................................. 2 05
18.3 Telnet .............................................................................................................. .................206
18.4 FTP ....................................................................................... ........................................... 206
18.5 SNMP .................. ............................................................................................................ 207
18.5.1 SNMP Traps ........................................................................................................... 208
18.5.2 SNMP Options ....................................................................................................... 209
18.6 DNS .................................................. ............................................................................... 210
18.7 Security ........................................................................................................................... ..211
18.8 TR0-69 ............................................................................................................................. 212
Chapter 19
QoS.........................................................................................................................................215
19.1 Overview ......................................................................................................... .................215