VPN: Virtual Private Network Presented By: Wesam Shuldhum ID:

Outline What is it? Types. Security/Tunneling. Advantages and Disadvantages. Task 1 & Task 2

VPN: What is it? Virtual Private Network Remote network communication through Internet Used by companies/organizations who want to communicate confidentially Two parts:  Protected or “inside” network  “Outside” network or segment (less trustworthy)

VPN: Types Secure VPNs use cryptographic tunneling protocols.  IPsec, SSL/TLS, OpenVPN, PPTP, L2TP, L2TPv3, VPN-Q and MPVPN Trusted VPNs rely on the security of a single provider’s network to protect the traffic.  MPLS and L2F

VPN: Security Encryption IPSec Authentication  User/System and Data  AAA Servers (Authentication, Authorization, and Accounting) Firewalls

VPN: Tunneling Requires 3 protocols  Carrier Default network protocol  Passenger Original data  Encapsulation GRE, IPSec, L2F, PPTP, L2TP

VPN: Tunneling (cont.) Two Basic types of tunneling  Site-to-Site Typically uses GRE  Remote-Access Typically uses PPP

VPN: Advantages Cost Effective Greater scalability Easy to add/remove users Mobility Security

VPN: Disadvantages Understanding of security issues Unpredictable Internet traffic Difficult to accommodate products from different vendors

Task 1 Configure IPsec VPN Settings TIME: 20 minutes

Task 2 Verify Site-to-Site IPsec VPN Configuration TIME: 10 minutes