User's Manual

Table of Contents
ADSL Series User’s Guide
16
Chapter 16
VPN ....................................................................................................................................................203
16.1 Overview .......................................................................................................................................203
16.1.1 What You Can Do in the VPN Screens ................................................................................203
16.1.2 What You Need to Know About IPSec VPN ........................................................................203
16.1.3 Before You Begin .................................................................................................................205
16.2 VPN Setup Screen .......................................................................................................................205
16.3 The VPN Edit Screen ...................................................................................................................206
16.4 Configuring Advanced Settings ....................................................................................................210
16.5 Viewing SA Monitor ......................................................................................................................212
16.6 IPSec VPN Technical Reference ...................................................................................................212
16.6.1 IPSec Architecture ...............................................................................................................212
16.6.2 IPSec and NAT ....................................................................................................................213
16.6.3 VPN, NAT, and NAT Traversal .............................................................................................214
16.6.4 Encapsulation ......................................................................................................................215
16.6.5 IKE Phases .........................................................................................................................216
16.6.6 Negotiation Mode ................................................................................................................217
16.6.7 Remote DNS Server ............................................................................................................217
16.6.8 ID Type and Content ............................................................................................................218
16.6.9 Pre-Shared Key ...................................................................................................................219
16.6.10 Diffie-Hellman (DH) Key Groups ........................................................................................219
16.6.11 Telecommuter VPN/IPSec Examples .................................................................................219
Chapter 17
System Monitor ................................................................................................................................223
17.1 Overview .......................................................................................................................................223
17.1.1 What You Can Do in this Chapter ........................................................................................223
17.2 The WAN Status Screen ...............................................................................................................223
17.3 The LAN Status Screen .................................................................................................................224
17.4 The NAT Status Screen .................................................................................................................225
Chapter 18
User Account ....................................................................................................................................227
18.1 Overview .......................................................................................................................................227
18.2 The User Account Screen .............................................................................................................227
Chapter 19
Remote MGMT...................................................................................................................................229
19.1 Overview .......................................................................................................................................229
19.1.1 What You Need to Know ......................................................................................................229
19.2 The Remote MGMT Screen ..........................................................................................................229