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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 .......................................................................................................................... 202
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 .............................................................................................................................. 205
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