ZyXEL Communications P-2802H(W)(L)-I Series - Manual (Page 16)

Table of Contents
P-2802H(W)(L)-I Series User’s Guide
16
13.4 IPSec and NAT ................................................................................................................ 182
Chapter 14
VPN Screens.......................................................................................................................... 185
14.1 VPN/IPSec Overview ....................................................................................................... 185
14.2 IPSec Algorithms ............................................................................................................. 185
14.2.1 AH (Authentication Header) Protocol ..................................................................... 185
14.2.2 ESP (Encapsulating Security Payload) Protocol .................................................... 185
14.3 My IP Address ................................................................................................................. 186
14.4 Secure Gateway Address ................................................................................................ 186
14.4.1 Dynamic Secure Gateway Address ....................................................................... 187
14.5 VPN Setup Screen ......................................................................................................... 187
14.6 Keep Alive ....................................................................................................................... 189
14.7 VPN, NAT, and NAT Traversal ......................................................................................... 189
14.8 Remote DNS Server ........................................................................................................ 190
14.9 ID Type and Content ........................................................................................................ 191
14.9.1 ID Type and Content Examples ............................................................................. 192
14.10 Pre-Shared Key ............................................................................................................. 193
14.11 Editing VPN Policies ..................................................................................................... 193
14.12 IKE Phases ................................................................................................................... 198
14.12.1 Negotiation Mode ................................................................................................. 199
14.12.2 Diffie-Hellman (DH) Key Groups .......................................................................... 199
14.12.3 Perfect Forward Secrecy (PFS) .......................................................................... 200
14.13 Configuring Advanced IKE Settings ............................................................................. 200
14.14 Manual Key Setup ......................................................................................................... 202
14.14.1 Security Parameter Index (SPI) .......................................................................... 202
14.15 Configuring Manual Key ............................................................................................... 203
14.16 Viewing SA Monitor ...................................................................................................... 205
14.17 Configuring Global Setting ............................................................................................ 207
14.18 Telecommuter VPN/IPSec Examples ............................................................................ 207
14.18.1 Telecommuters Sharing One VPN Rule Example ................................................ 207
14.18.2 Telecommuters Using Unique VPN Rules Example ............................................. 208
14.19 VPN and Remote Management ..................................................................................... 210
Chapter 15
Certificates ............................................................................................................................ 211
15.1 Certificates Overview .......................................................................................................211
15.1.1 Advantages of Certificates ..................................................................................... 212
15.2 Self-signed Certificates .................................................................................................... 212
15.3 Configuration Summary ................................................................................................... 212
15.4 My Certificates ................................................................................................................. 212
15.5 My Certificate Import ...................................................................................................... 214
15.5.1 Certificate File Formats .......................................................................................... 215