Enterprises and service providers require ubiquitous and secure connectivity to address today's mission-critical high-bandwidth applications. Many enterprises replace their traditional WANs with site-to-site and remote-access VPNs while service providers are offering managed VPN services, including virtualized network-based VPNs. The Cisco IPSec VPN shared port adapter (SPA) offers next-generation encryption technology as well as a form factor designed to enable a more flexible and scalable network infrastructure. The Cisco IPSec VPN SPA delivers scalable and cost-effective VPN performance.