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Vpn presentation
 

Vpn presentation

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    Vpn presentation Vpn presentation Presentation Transcript

    • BY : WAQAS ANWAR
      • TUNNELING
      • FOUR PROTOCOLS USED IN VPN
      • VPN ENCAPSULATION OF PACKETS
      • TYPES OF IMPLEMENTATIONS
      • VPN BASIC ARCHITECTURE
      • ADVANTAGES
      • DIS ADVANTAGES
      • APPLICATIONS OF VPN
      • INDUSTRIES THAT MAY USE A VPN
      • SOME BUSINESSES THAT MAY USE A VPN
      • FUTURE OF A VPN
    • Tunneling
      • A virtual point-to-point connection
      • made through a public network. It transports
      • encapsulated datagrams.
      Encrypted Inner Datagram Datagram Header Outer Datagram Data Area Original Datagram 1-18
    • Four Protocols used in VPN
      • PPTP -- Point-to-Point Tunneling Protocol
      • L2TP -- Layer 2 Tunneling Protocol
      • IPsec -- Internet Protocol Security
      • SOCKS – is not used as much as the ones above
      1-18
    • VPN Encapsulation of Packets 1-18
    • Types of Implementations
      • Three Types of implementation.
        • Intranet – Within an organization
        • Extranet – Outside an organization
        • Remote Access – Employee to Business
      1-18
    • VPN Basic Architecture 1-18
    • Advantages
      • Eliminating the need for expensive long-distance leased lines
      • Reducing the long-distance telephone charges for remote access.
      • Operational costs
      • Flexibility of growth
      • Efficiency with broadband technology
      1-18
    • Disadvantages
      • VPNs require an in-depth understanding of public network security issues and proper deployment of precautions
      • Availability and performance depends on factors largely outside of their control
      • Immature standards
      • VPNs need to accommodate protocols other than IP and existing internal network technology
      1-18
    • Applications: Site-to-Site VPNs
      • Large-scale encryption between multiple fixed sites such as remote offices and central offices
      • Network traffic is sent over the branch office Internet connection
      • This saves the company hardware and management expenses
      1-18
    • Site-to-Site VPNs 1-18
    • Applications: Remote Access
      • Encrypted connections between mobile or remote users and their corporate networks
      • Remote user can make a local call to an ISP, as opposed to a long distance call to the corporate remote access server.
      • Ideal for a telecommuter or mobile sales people.
      • VPN allows mobile workers & telecommuters to take advantage of broadband connectivity. i.e. DSL, Cable
      1-18
    • Industries That May Use a VPN
      • Healthcare: enables the transferring of confidential patient information within the medical facilities & health care provider
      • Manufacturing : allow suppliers to view inventory & allow clients to purchase online safely
      • Retail: able to securely transfer sales data or customer info between stores & the headquarters
      • Banking/Financial: enables account information to be transferred safely within departments & branches
      • General Business: communication between remote employees can be securely exchanged
      1-18
    • Some Businesses using a VPN
      • CVS Pharmaceutical Corporation upgraded their frame relay network to an IP VPN
      • ITW Foilmark secured remote location orders, running reports, & internet/intranet communications w/ a 168-bit encryption by switching to OpenReach VPN
      • Bacardi & Co. Implemented a 21-country- 44-location VPN
      1-18
    • FUTURE OF VPNs
      • VPNs are continually being enhanced.
      • As the VPN market becomes larger, more applications will be created along with more VPN providers and new VPN types.
      • Networks are expected to converge to create an integrated VPN
      • Improved protocols are expected, which will also improve VPNs.
      1-18
      • In my conclusion virtual private network is an,
      • Eliminating the need for expensive long-distance leased lines
      • Reducing the long-distance telephone charges for remote access.
      • Transferring the support burden to the service providers
      • Operational costs
      • Flexibility of growth
      • Efficiency with broadband technology
    • 1:Feilner, Markus. "Chapter 1 - VPN—Virtual Private Network". OpenVPN: Building and Integrating Virtual Private Networks: Learn How to Build Secure VPNs Using this Powerful Open Source Application. Packt Publishing. 2: Address Allocation for Private Internets, RFC 1918, Y. Rekhter et al. 3: RFC 2917, A Core MPLS IP VPN Architecture 4: Layer Two Tunneling Protocol "L2TP", RFC 2661, W. Townsley et al. 5: IP Based Virtual Private Networks, RFC 2341, A. Valencia et al 6: Point-to-Point Tunneling Protocol (PPTP), RFC 2637, K. Hamzeh et al. 7: Http://en.wikipedia.org/wiki/vpn
    •