VPN Overview
Private Network Advantages
Tunneling and Encapsulation
Legacy Tunnel Protocols
VPN Architectures
Key VPN Protocols
Security Planning and Policies
VPN Security
and RADIUS Authentication
Internet Connectivity
Access & Security
Internet Cryptography Review
AAA Model
RADIUS protocol and application
PPP,
PPPoE & PPPoA
Point-to-Point Protocol
Remote Access
VPN Protocol Foundation
Components (Encapsulation, LCP, NCP)
Option Negotiation, PPP IP Control Protocol (IPCP)
Authentication (PAP, CHAP, MS-CHAP, EAP)
PPP Extensions (PPP over Ethernet, PPP over ATM)
Point-to-Point Tunneling
Protocol (PPTP)
Overview & Function
PPP Foundation
Components (PAC, PNS)
Tunnel Protocol (GRE)
Frame Format
Microsoft Enhancements & Implementations
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Layer Two Tunneling Protocol (L2TP)
Overview and Function
L2F & PPTP Foundation
Components (LAC, LNS)
L2TP Frame Format
Control and Data Messages
Tunnel & Session Management
Media Support
IP Security Protocol (IPSEC)
Overview and Function
Implementation Scenarios
Components (AH, ESP)
Transport and Tunnel Modes
Security Associations (IKE and IPSec SA’s)
Key Management (Manual, IKE - ISAKMP/Oakley)
Performance Characteristics, Application Support
Microsoft Implementation (L2TP with IPSEC)
VPN
Products and Services
Survey of Products in the three VPN Categories
Cisco, Checkpoint, Nortel, Nokia CryptoCluster, Microsoft
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