A practical guide for comparing, designing, and deploying IPsec, MPLS Layer 3, L2TPv3, L2TPv2, AToM, and SSL virtual private networks * Explore the major VPN technologies and their applications, design, and configurations on the Cisco IOS� Router, Cisco� ASA 5500 Series, and the Cisco VPN 3000 Series Concentrator platforms * Compare the various VPN protocols and technologies, learn their advantages and disadvantages, and understand their real-world applications and methods of integration....