Table of Contents
P-79X Series User’s Guide
8
12.2.1 Editing Protocol Filters .........................................................................................................120
12.2.2 Configuring Protocol Filter Rules ........................................................................................121
12.2.3 Editing Generic Filters .........................................................................................................123
12.2.4 Configuring Generic Packet Rules ......................................................................................124
12.3 Packet Filter Technical Reference .................................................................................................125
12.3.1 Filter Types and NAT ...........................................................................................................125
12.3.2 Firewall Versus Filters .........................................................................................................126
Chapter 13
VPN ....................................................................................................................................................128
13.1 Overview .......................................................................................................................................128
13.1.1 What You Can Do in the VPN Screens ................................................................................128
13.1.2 What You Need to Know About IPSec VPN ........................................................................128
13.1.3 Before You Begin .................................................................................................................130
13.2 VPN Setup Screen .......................................................................................................................130
13.3 The VPN Edit Screen ...................................................................................................................131
13.4 Configuring Advanced IKE Settings .............................................................................................136
13.5 Viewing SA Monitor ......................................................................................................................138
13.6 IPSec VPN Technical Reference ...................................................................................................139
13.6.1 IPSec Architecture ...............................................................................................................139
13.6.2 IPSec and NAT ....................................................................................................................140
13.6.3 VPN, NAT, and NAT Traversal .............................................................................................141
13.6.4 Encapsulation ......................................................................................................................142
13.6.5 IKE Phases .........................................................................................................................143
13.6.6 Negotiation Mode ................................................................................................................144
13.6.7 Keep Alive ...........................................................................................................................144
13.6.8 Remote DNS Server ............................................................................................................144
13.6.9 ID Type and Content ............................................................................................................145
13.6.10 Pre-Shared Key .................................................................................................................147
13.6.11 Diffie-Hellman (DH) Key Groups ........................................................................................147
13.6.12 Telecommuter VPN/IPSec Examples ................................................................................147
Chapter 14
Certificates ........................................................................................................................................150
14.1 Overview ......................................................................................................................................150
14.1.1 What You Need to Know About Certificates ........................................................................150
14.1.2 Verifying a Certificate ...........................................................................................................151
14.2 The Trusted CAs Screen ...............................................................................................................152
14.2.1 Trusted CA Import ..............................................................................................................153
14.2.2 Trusted CA Details ...............................................................................................................154
14.3 Certificates Technical Reference ...................................................................................................155
14.3.1 Certificates Overview ...........................................................................................................155
14.3.2 Private-Public Certificates ...................................................................................................156
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