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Telecom Training Center

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Virtual Private Networks

Duration: 2 hours

THE MARKET

  • VPN definition and approach to networking
  • Business needs driving the interest in VPNs
  • VPN implementation options
  • ISP and telco benefits
  • Possible migration strategies

TECHNOLOGY OVERVIEW

  • Essential elements of a VPN: encryption, tunneling, and authentication
  • Supplying QoS in an IP environment
  • VPN methods: Layer 2 tunneling, IPSec , SSL, etc.
  • Common encryption methods
  • Certificates and certificate authorities

ENGINEERING ISSUES

  • Firewalls and proxy servers
  • Security gateways: functions and applications
  • ssues: Layer 2 tunneling and Layer 3 IPSec
  • IPSec : Authentication Header and Encapsulating Security Payload use

THE PLAYERS

  • Implementing a VPN: service provider, client-based, and hybrid
  • Benefits and drawbacks of implementing a VPN on a firewall, router, or server platform
  • Example implementation: combining the pieces of the puzzle
  • User issues
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