Enterprises have been quick to see the merits of the Internet and IP to extend their business communications to customers, employees, and partners. But the Internet was not designed with security in mind. Nortel Networks Contivity products have led the market in addressing these enterprise IP security needs. Now the powerful security of the Contivity family can be extended to small office and home office sites. The Contivity 200 series of VPN switches are an affordable all-in-one solution for tying small satellite offices and teleworkers into a secure corporate network. The Contivity 200 series of VPN Switches are the answer to enterprises requiring low-cost secure connectivity across the Internet or managed IP networks. Designed for telecommuter and small office/home offices, the Contivity 200 series provides Virtual Private Networking (VPN), stateful firewall, IP routing, URL/content filtering, and optional integrated DSL in a compact easy-to-manage platform. The Contivity 200 series provides options for small sites seeking secure Internet connectivity along with firewall-based perimeter defense functions in a single device. The Contivity 251 has an integrated four-port Ethernet switch for connecting local LAN devices and offers integrated ADSL conforming to international standards to allow global deployment.