DMVPN Phase 1

Part 1 in a four part series, this post will look at the configuration of DMVPN Phase 1 and the routing implications using OSPF. Although Phase 1 today is considered obsolete, it is still worth reviewing.

Prior to delving into the specifics of DMVPN Phase 1 configuration, let’s start with a underlay network – NBMA (Non-Broadcast Multi-access Network), the underlay can either be the public internet or a MPLS network.
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DMVPN Phase 2

In the first post of this series, DMVPN Phase 1, the DMVPN concept and configuration parameters that were pertinent to the configuration for Phase 1 were explored. Although the parameters are similar to Phase 1 for Phase 2, the actual operation of traffic flows and routing configuration has changed.
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