This document provides a sample configuration for configuring Dynamic Multipoint spoke router into a full mesh Dynamic Multipoint VPN (DMVPN). DMVPN allows users to scale large and small IPsec VPNs more effectively by combining generic routing encapsulation (GRE) tunnels, IPsec encryption, and Next Hop Resolution Protocol (NHRP). Security Device Manager (SDM) is an embedded security configuration management tool used to configure Cisco IOS® Software routers with variety of security features. This sample configuration relies on SDM version 1.2 that supports hub and spoke DMVPN configurations and shows how to configure dynamic Spoke to Spoke tunnels.
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