Gartner Research

Global Virtual Private Network (VPN)

Published: 09 September 2003

ID: G0090307

Analyst(s): Joe Tuset, Kathleen Adams


Many IP-VPN solutions rely on the Internet for "best effort" transport. However, carriers are improving on the delivery of IP traffic by using their own backbone infrastructures to deliver more reliable, secure and predictable IP-VPN services.

Table Of Contents
  • Technology Overview
  • Global IP-VPN Service Providers
  • Services Analysis
  • VPN Standards/Protocols
    • PPTP
    • IPSec
    • L2TP
    • Secure Sockets Layer (SSL)
  • Strengths and Limitations of IP-VPN Services
    • Strengths
    • Limitations
  • Alternatives to VPN Services
  • Insight

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