dmvpn from kumarfield's blog

VPNs (or Virtual Private Networks) are largely understood as a concept by many who are using networked connections that may involve sending and receiving sensitive data. Dynamic Multiple VPN, such as Cisco DMVPN, works to encrypt transmitted data much like a regular VPN. However, they do it in a way that can secure communications between branch offices in particular. It does this using a centralized architecture to provide easier implementation and management for deployments across the entire IT scope of the organization.

What is DMVPN?

DMVPN Cisco is, effectively, a solution that allows different branch locations using the same resources to communicate directly and safely with one another via public WAN or internet connections, rather than having to use an internal network. The way that it does this doesn’t utilize a permanent VPN connection between the various sites, but rather through a centralized architecture that can apply VPN protection and granular access controls on an as-you-need-it basis. As such, when communications are open or access has to be granted to specific digital resources, it applies the security features of a VPN on a more selective basis. DVPN also integrates modes of communication, such as the VoIP system, into the protections of a VPN.

dmvpn