Description The Cisco 1720 Modular Access Router delivers a flexible, integrated data access solution for small branch offices and small and medium-sized businesses that want to deploy secure Internet/Intranet and Extranet access. Preparing a small or medium-sized business or small branch office for the future means implementing networking equipment with three critical characteristics: flexibility to adapt to changing requirements, features and performance to support new world services, and integration of multiple network functions to simplify deployment and management operations.The Cisco 1720 access router delivers all of these capabilities with Cisco IOS software in a modular, integrated product for data Internet/Intranet and extranet access, including VPNs. The Cisco 1720 supports any combination of two WAN interface cards, which are also supported by the Cisco 1600, 2600 and 3600 routers.