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ZyWALL 5/35/70 Series User’s Guide
Table of Contents 18
Chapter 19
VPN Screens......................................................................................................... 308
19.1 VPN/IPSec Overview .....................................................................................308
19.2 IPSec Algorithms ............................................................................................308
19.2.1 AH (Authentication Header) Protocol ....................................................308
19.2.2 ESP (Encapsulating Security Payload) Protocol ..................................308
19.3 My ZyWALL ....................................................................................................309
19.4 Remote Gateway Address .............................................................................309
19.4.1 Dynamic Remote Gateway Address .....................................................310
19.5 Nailed Up .......................................................................................................310
19.6 NAT Traversal ................................................................................................310
19.6.1 NAT Traversal Configuration .................................................................311
19.7 ID Type and Content ......................................................................................311
19.7.1 ID Type and Content Examples ............................................................312
19.8 IKE Phases ....................................................................................................313
19.8.1 Negotiation Mode ..................................................................................314
19.8.2 Pre-Shared Key ....................................................................................314
19.8.3 Diffie-Hellman (DH) Key Groups ...........................................................315
19.8.4 Perfect Forward Secrecy (PFS) ...........................................................315
19.9 X-Auth (Extended Authentication) ..................................................................315
19.9.1 Authentication Server ...........................................................................315
19.10 VPN Rules (IKE) .........................................................................................316
19.11 VPN Rules (IKE) Gateway Policy Edit .........................................................318
19.12 VPN Rules (IKE): Network Policy Edit ......................................................324
19.13 VPN Rules (IKE): Network Policy Move .....................................................328
19.14 VPN Rules (Manual) ...................................................................................329
19.15 VPN Rules (Manual): Edit .........................................................................331
19.15.1 Security Parameter Index (SPI) ..........................................................331
19.16 VPN SA Monitor .........................................................................................335
19.17 VPN Global Setting .....................................................................................336
19.18 Telecommuter VPN/IPSec Examples ...........................................................337
19.18.1 Telecommuters Sharing One VPN Rule Example ..............................337
19.18.2 Telecommuters Using Unique VPN Rules Example ...........................338
19.19 VPN and Remote Management ...................................................................340
Chapter 20
Certificates............................................................................................................ 342
20.1 Certificates Overview .....................................................................................342
20.1.1 Advantages of Certificates ....................................................................343
20.2 Self-signed Certificates ..................................................................................343
20.3 Configuration Summary .................................................................................343
20.4 My Certificates ..............................................................................................344
20.5 My Certificate Import ....................................................................................346