Virtual Private Networks

• What is a VPN?
• When to VPN?
• VPN Design Issues
• Types of VPNs
• CE Based VPNs
• PE Based VPNs
• Layer 2 VPNs
• Layer 3 VPN
• PPP: Introduction
• PPP Procedures
• VPN Tunneling Protocols
• GRE
• PPTP
• PPTP Packets
• L2TP
• L2TPv3
• L2TPv3 Frame Format
• Multiprotocol Label Switching (MPLS)
• Label Switching Example
• Label Assignment
• VPN Support with MPLS
• Virtual Router IP VPNS

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