Virtual private network

VIRTUAL PRIVATE NETWORKS (VPN) BY: SOWMIA.S

What is VPN? ,[object Object],[object Object]

Private Networks vs. Virtual Private Networks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Brief Overview of How it Works ,[object Object],[object Object],[object Object],[object Object]

Four Critical Functions ,[object Object],[object Object],[object Object],[object Object]

Encryption ,[object Object],[object Object],[object Object]

Tunneling ,[object Object],[object Object],[object Object],Encrypted Inner Datagram Datagram Header Outer Datagram Data Area Original Datagram Data Encapsulation [From Comer] ,[object Object],[object Object],[object Object]

◦ Uses a TCP connection for tunnel maintenance and generic routing encapsulated PPP frames for tunneled data. ◦ The payloads of the encapsulated PPP frames can be encrypted and/or compressed. L2TP – (Layer 2 Tunneling Protocol) ◦ Uses UDP and a series of L2TP messages for tunnel maintenance. PPTP – (Point-to-Point Tunneling Protocol )

Four Protocols used in VPN ,[object Object],[object Object],[object Object],[object Object]

Types of Implementations ,[object Object],[object Object],[object Object],[object Object]

Device Types ,[object Object],[object Object],[object Object],[object Object]

Device Types: Hardware ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Device Types: Firewall ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Device Types: Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Advantages: Cost Savings ,[object Object],[object Object],[object Object],[object Object]

Advantages: Scalability ,[object Object],[object Object]

Disadvantages ,[object Object],[object Object],[object Object],[object Object]

Applications: Site-to-Site VPNs ,[object Object],[object Object],[object Object]

Applications: Remote Access ,[object Object],[object Object],[object Object],[object Object]

Industries That May Use a VPN ,[object Object],[object Object],[object Object],[object Object],[object Object]

Virtual private network

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Virtual private network