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VPN’s

VPN’s. Kristin Belanger. VPN’s. Accommodate employees at distant offices Usually set up through internet Pass secure information through a tunnel on the internet Cost savings. Benefits. Improved productivity Global network opportunities Telecommuter support. Types of VPN’s.

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VPN’s

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  1. VPN’s Kristin Belanger

  2. VPN’s • Accommodate employees at distant offices • Usually set up through internet • Pass secure information through a tunnel on the internet • Cost savings

  3. Benefits • Improved productivity • Global network opportunities • Telecommuter support

  4. Types of VPN’s • Remote Access VPN • Extranet VPN • Intranet VPN

  5. Remote Access • User-to-LAN connection • Some need ESP (Enterprise Service Provider • Sets up a Network Access Server • Users have desktop client software

  6. Site-to-Site • Two types: Intranet and Extranet • Intranet: Can connect a LAN to a LAN • Extranet: with another company

  7. Safe and Secure • Recommended hardware: • Firewall • Encryption • IPSec • AAA server

  8. IPSec • Internet Protocol Security Protocol • Aids in encryption • Enhance algorithms • Two types: tunnel and transport • Tunnel: encrypts header and payload • Transport: payload

  9. AAA Server • Authentication, authorization, accounting • Secure for remote-access VPN environments • Help with auditing, billing, reports

  10. Software • Desktop client software • Dedicated hardware (VPN concentrator, PIX firewall) • Dedicated VPN server for dial up • NAS server • VPN network and policy-management center • No protocol

  11. Tunneling Protocol • Carrier protocol • Network tunnel is established on • Encapsulation protocol • Packet that wraps itself around the original data • Passenger protocol • The original data itself

  12. NMMC • VPN’s for select physicians • VPN’s for employees • VPN’s for other offices

  13. Problem with VPN • Only one computer can be connected through the VPN at one time • Can’t have two computers on one Internet connection trying to create tunnel • Need two different internet lines in order to make tunnel work all of the time

  14. Questions?

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