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20.1 Overview ..........................................................................................................................256
20.2 What You Can Do in this Chapter ....................................................................................256
20.3 What You Need To Know .................................................................................................257
20.4 The Setup Screen ............................................................................................................257
20.4.1 Add/Edit VPN Rule .................................................................................................258
20.4.2 The VPN Connection Add/Edit Screen ...................................................................259
20.4.3 The Default_L2TPVPN IPSec VPN Rule ................................................................266
20.5 The IPSec VPN Monitor Screen .......................................................................................266
20.6 The Radius Screen ..........................................................................................................267
20.7 Technical Reference .........................................................................................................268
20.7.1 IPSec Architecture ..................................................................................................268
20.7.2 Encapsulation .........................................................................................................269
20.7.3 IKE Phases ............................................................................................................270
20.7.4 Negotiation Mode ...................................................................................................271
20.7.5 IPSec and NAT .......................................................................................................271
20.7.6 VPN, NAT, and NAT Traversal ................................................................................272
20.7.7 ID Type and Content ...............................................................................................273
20.7.8 Pre-Shared Key ......................................................................................................274
20.7.9 Diffie-Hellman (DH) Key Groups .............................................................................274
PPTP VPN .............................................................................................................................. 275
21.1 Overview ..........................................................................................................................275
21.2 What You Can Do in this Chapter ....................................................................................275
21.3 PPTP VPN Setup .............................................................................................................276
21.4 The PPTP VPN Monitor Screen .......................................................................................277
21.5 PPTP VPN Troubleshooting Tips .....................................................................................277
L2TP VPN............................................................................................................................... 280
22.1 Overview ..........................................................................................................................280
22.1.1 What You Can Do in this Chapter ...........................................................................280
22.2 L2TP VPN Screen ............................................................................................................281
22.3 The L2TP VPN Monitor Screen ........................................................................................282
22.4 L2TP VPN Troubleshooting Tips ......................................................................................282
Log ........................................................................................................................................ 286
23.1 Overview ..........................................................................................................................286
23.1.1 What You Can Do in this Chapter ...........................................................................286
23.1.2 What You Need To Know ........................................................................................286
23.2 The System Log Screen ...................................................................................................287
23.3 The Security Log Screen ..................................................................................................288
SBG3500-N000 User's Guide
Table of Contents
11
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Table of Contents
Troubleshooting
