The Cisco VPN 3000 series concentrators are purpose-built, remote access virtual private network (VPN) platforms that incorporate high availability, high performance, and scalability with the most advanced encryption and authentication techniques available today. Supported connectivity mechanisms include IP security (IPSec), Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP) over IPSec, and Cisco WebVPN (clientless secure sockets layer [SSL] browser-based connectivity).With the VPN 3000 series, organizations can take advantage of the latest VPN technology to reduce communications costs. Unique to the industry, this scalable platform offers field-swappable and customer-upgradeable components. These components, called Scalable Encryption Processing (SEP) modules, enable users to easily add capacity and throughput.