Data Encapsulation [From Comer]. Two types of end points: Remote Access; Site- to-Site. Four Protocols used in VPN. PPTP -- Point-to-Point Tunneling Protocol ...

VPN Components: Protocols. IP Security (IPSec). Transport mode; Tunnel mode. Point-to-Point Tunneling Protocol (PPTP). Voluntary tunneling method; Uses ...

VPNs must be authenticated; No one outside the VPN can alter the VPN; All parties to the ... VPN works via crypto/Encapsulation ... PPTP: Free from Microsoft ...

VPN: Virtual Private Network. Presented By: Gregg Dowdy. Liz Farricker. Whitney Mayoras. Outline. Introductions; What is it? Overview; Security/Tunneling ...

VPN Vendors. Layer 2 Tunneling Protocol (L2TP): utilizing Cisco Systems” Layer- 2 Forwarding and Microsoft's Point-o-Point Tunneling Protocol (PPTP) ...

Why VPNs? Connect two sites. Allow remote access by individual users. Two Sites. Two Sites – One Virtual Site. Tunnel Technologies. IPSec; CIPE; PPTP; SSH ...

Virtual Private Networks (VPN). Generic Routing Encapsulation (GRE); TLS (SSL -VPN). Virtual Private Networks (VPN). CN8816: Network Security ...

March 2000. Dan Simon, Bernard Aboba, Tim Moore, Microsoft. Slide. doc.: IEEE 802.11-00/034. Submission. IEEE 802.11 Security and 802.1X Dan Simon ...