DMVPN and GETVPN are often compared, but they solve very different design problems.
DMVPN is a scalable, dynamic tunneling solution using mGRE and NHRP. It is ideal for hub-and-spoke or spoke-to-spoke topologies over public or private WANs. While it can use IPsec for security, encryption is optional depending on the environment.
GETVPN is designed for full-mesh private WANs, such as MPLS. It doesn’t build tunnels; instead, it encrypts traffic while preserving the original IP header, making it great for multicast, QoS, and policy-based routing. We call it Tunnelless VPN.
From a design point of view:
DMVPN = dynamic topologies, flexible with or without encryption for reachability
GETVPN = secure communication over trusted backbones, so for scalable encryption purposes, we use them.
We will explore DMVPN, GETVPN, MPLS VPNs, IPsec, and much more in the CCDE Bootcamp:
buff.ly/VcJMEy1 with real-world design insights, not just theory.
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