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Table of Contents
EMG5324-D10A User’s Guide
10
Chapter 17
VPN ....................................................................................................................................................201
17.1 Overview .......................................................................................................................................201
17.1.1 What You Can Do in the VPN Screens ................................................................................201
17.1.2 What You Need to Know About IPSec VPN ........................................................................201
17.1.3 Before You Begin .................................................................................................................203
17.2 VPN Setup Screen .......................................................................................................................203
17.3 The VPN Edit Screen ...................................................................................................................205
17.4 Configuring Advanced Settings ....................................................................................................208
17.5 Viewing SA Monitor ......................................................................................................................210
17.6 IPSec VPN Technical Reference ...................................................................................................210
17.6.1 IPSec Architecture ...............................................................................................................211
17.6.2 IPSec and NAT .................................................................................................................... 211
17.6.3 VPN, NAT, and NAT Traversal .............................................................................................212
17.6.4 Encapsulation ......................................................................................................................213
17.6.5 IKE Phases .........................................................................................................................214
17.6.6 Negotiation Mode ................................................................................................................215
17.6.7 Remote DNS Server ............................................................................................................215
17.6.8 ID Type and Content ............................................................................................................216
17.6.9 Pre-Shared Key ...................................................................................................................217
17.6.10 Diffie-Hellman (DH) Key Groups ........................................................................................217
17.6.11 Telecommuter VPN/IPSec Examples .................................................................................217
Chapter 18
VoIP ....................................................................................................................................................221
18.1 Overview .......................................................................................................................................221
18.1.1 What You Can Do in this Chapter ........................................................................................221
18.1.2 What You Need to Know ......................................................................................................221
18.1.3 Before You Begin .................................................................................................................222
18.2 The SIP Service Provider Screen ................................................................................................223
18.3 The SIP Account Screen ...............................................................................................................226
18.3.1 Add/Edit SIP Account ..........................................................................................................227
18.4 Multiple SIP Accounts ...................................................................................................................229
18.5 Phone Screen ..............................................................................................................................230
18.5.1 Edit Phone Device ...............................................................................................................230
18.6 The Phone Region Screen ............................................................................................................231
18.7 The Call Rule Screen ....................................................................................................................232
18.8 Technical Reference ......................................................................................................................233
18.8.1 VoIP .....................................................................................................................................233
18.8.2 SIP ......................................................................................................................................233
18.8.3 Quality of Service (QoS) ......................................................................................................238
18.8.4 Phone Services Overview ...................................................................................................239