Cisco Prime™ Network Registrar is a high-performance, scalable, integrated DNS, DHCP, and IPAM (DDI) solution that supports the IPv4-to-IPv6 transition and allows dual-stack deployments on a single server. The solution includes the following integrated components and their respective services, all of which support both IPv4 and IPv6: A single DHCP server for device network access, A single DNS server for IP address translation and service delivery, A DNS caching server that supports DNS Security Extensions (DNSSEC) and is designed to prevent cache poisoning and other attacks, A powerful, comprehensive IPAM system to automate and manage all IP address requirements.