This configuration is for which DMVPN device role?
- P router
- Hub router
- Spoke router
- CE router
Explanation: According to the sources, the role of a device in a DMVPN network is distinguished by specific NHRP (Next Hop Resolution Protocol) commands. A Hub router functions as the Next Hop Server (NHS) and is primarily identified by the ip nhrp map multicast dynamic command . This command allows the hub to automatically add spoke routers to its multicast mappings as they register, enabling dynamic routing protocols to work without requiring a static multicast mapping for every spoke .
In contrast, a Spoke router acts as an NHRP client and its configuration must include the ip nhrp nhs command to point to the hub's tunnel IP address, as well as static ip nhrp map entries for the hub's NBMA address . P routers (Provider routers) are part of the service provider core and are unaware of VPN routes, meaning they do not participate in DMVPN tunnel configurations . While a CE router (Customer Edge) is the physical device at the customer site, in the context of DMVPN architecture, it is specifically referred to by its functional role as either a hub or a spoke .
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