Is DMVPN Cisco proprietary?

Is DMVPN Cisco proprietary?

DMVPN is a dynamic VPN technology originally developed by Cisco. While their implementation was somewhat proprietary, the underlying technologies are actually standards based.

How does Cisco DMVPN work?

DMVPN (Dynamic Multipoint VPN) is a routing technique we can use to build a VPN network with multiple sites without having to statically configure all devices. It’s a “hub and spoke” network where the spokes will be able to communicate with each other directly without having to go through the hub.

What is the difference between VPN and DMVPN?

While a VPN acts as a connector between remote sites and HQ, or between different branches, the DMVPN creates a mesh VPN protocol that can be applied selectively to connections being utilized in the business already.

Is DMVPN encrypted?

Any traffic routed over the DMVPN tunnel interface is encrypted with minimal configuration.

What does DMVPN stand for?

Dynamic Multipoint Virtual Private Network (DMVPN) is a solution which enables the data to transfer from one site to another, without having the verification process of traffic.

Is DMVPN a Layer 2?

DMVPN is based on underlying layer-3 connectivity between the sites (called Spokes) and head end (called Hub). Sites/spokes register and resolve connectivity for networks at each site via the Hub. For this hub and spokes use the Next Hop Resolution Protocol (NHRP) which is specified in RFC-2332.

What is the advantage of DMVPN vs static VPN?

Benefits. DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel end-point peers, including IPsec (Internet Protocol Security) and ISAKMP (Internet Security Association and Key Management Protocol) peers.

What are DMVPN phases?

A brief description of DMVPN phases: DMVPN phase 1 – Hub-to-spokes tunnels only. But spokes dynamically register on the hub with NHRP, no need to configure many tunnel on the hub. DMVPN phase 2 – Hub-to-spokes and spoke-to-spokes tunnels. One mGRE interface on the hub and one mGRE interface on each spoke.

What is IP NHRP shortcut?

This functionality is enabled by configuring ip nhrp redirect on the hub and ip nhrp shortcut on the spokes. The redirect command tells the hub to send the NHRP traffic indication message while the shortcut command tells the spokes to accept the redirect and install the shortcut route.