Definitive VPNs training course description

A hands on course covering VPNs from the basics of benefits and Internet vs. Intranet VPNs through to detailed analysis of the technologies involved in VPNs. All the major VPN protocols are covered including PPPoE, L2TP, SSL, IPsec and dynamic VPNs. MPLS L3 VPNs are also covered.

What will you learn

• Describe what a VPN is and explain the difference between different VPN types.
• Recognise the design and implementation issues involved in implementing a VPN.
• Explain how the various technologies involved in a VPN work.
• Describe and implement: L2TP, IPsec, SSL, MPLS L3 VPNs.
• Evaluate VPN technologies.

Definitive VPNs training course details

Definitive VPNs training course contents

• VPN overview

What is a VPN? What is an IP VPN? VPNs vs. Private Data Networks, Internet VPNs, Intranet VPNs, Remote access VPNs, Site to site VPNs, VPN benefits and disadvantages.

• VPN Tunnelling

VPN components, VPN tunnels, tunnel sources, tunnel end points, hardware based VPNs, Firewall based VPNs, software based VPNs, tunnelling topologies, tunnelling protocols, which tunnelling protocol should you use? requirements of tunnels.

• VPN security components

Critical VPN security requirements, Encryption and authentication, Diffie Hellman, DES, 3DES, RSA, PKI, Ca server types, pre shared keys versus certificates, Enrolling with a CA, RADIUS in VPNs.

• PPP

Encapsulation, operation, authentication.
Hands on Setting up PPPoE and analysing PPP packets.

• PPTP

Overview, Components, How it works, control and data connections, GRE.
Hands on Building a PPTP VPN.

• L2TP

Overview, components, how it works, security, packet authentication, L2TP/IPSec, L2TP/PPP, Layer 2 versus layer 3 tunnelling.
Hands on Implementing a L2TP tunnel.

• IPSec

AH, HMAC, ESP, transport and tunnel modes, Security Association, use of encryption and authentication algorithms, manual vs automated key exchange, NAT and other issues.
Hands on Implementing an IPSec VPN.

• Intranet VPNs

Headers, architecture, label switching, LDP, MPLS VPNs.

• VPN products and services

PE and CPE, management, various VPN products.

• VPN issues and architectures

VPN architectures: terminate VPN before/on/ after/in parallel with firewall, resilience issues, VRRP, performance issues, QoS and VPNs. documentation.

Learning path

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