Dynamic Multipoint VPN (DMVPN) is a Cisco IOS Software solution for building scalable IP Security (IPsec) VPNs. Cisco DMVPN uses a centralized architecture to provide easier implementation and management for deployments that require granular access controls for diverse user communities, including mobile workers, telecommuters, and extranet users.

Robert Lesar, CCIE #17091 and CCSI, explains the advantages of the DMVPN.