The Cisco 7120 series virtual private network (VPN) router is the entry-level model in the Cisco 7100 series of high-end, integrated VPN routers. The Cisco 7120 series integrates key features of VPNs -- Tunneling, data encryption, security, firewall, advanced bandwidth management, and service-level validation-to deliver self-healing, self-defending site-to-site VPN platforms that better and more cost effectively accommodate remote-office and extranet connectivity using public data services.