The Cisco 7100 Series VPN Router is a high-end, integrated VPN solution melding high-speed, industry-leading routing with a comprehensive suite of advanced site-to-site VPN services. The Cisco 7100 Series VPN Router integrates key features of VPNs-tunneling, data encryption, security, firewall, quality of service (QoS), and service-level validation - to deliver self-healing, self-defending VPN platforms that better and more cost-effectively accommodate remote-office and extranet connectivity using public data networks. The Cisco 7100 Series VPN Router offers specific hardware configurations optimized for VPN applications and network topologies. Embedded Fast Ethernet interfaces combined with high-performance routing and rich VPN services provide turnkey VPN routing solutions.The Cisco 7120 is the entry-level Cisco 7100 Series VPN Router, integrating high-performance, industry-leading routing with scalable VPN security and bandwidth management to provide cost-effective, comprehensive VPN solutions for larger branch offices and headquarters. The Cisco 7120 comes with dual Fast Ethernet LAN interfaces and an integrated four port serial WAN interface.