A company will integrate an IPv6 application into their network and wants to develop a test environment to evaluate application performance across the network. This application consists of both…

ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) is designed only for unicast IPv6 traffic within a single administrative site and does not support IPv6 multicast.

6PE (IPv6 Provider Edge) requires an MPLS-enabled backbone and cannot function on a purely IPv4-only network without MPLS infrastructure in place.

DMVPN (Dynamic Multipoint VPN) supports IPv6 as a passenger protocol over an IPv4 transport network and natively supports multicast traffic through GRE tunnels, satisfying both the unicast and multicast requirements. Because DMVPN can be deployed selectively at specific sites using a hub-and-spoke or full-mesh topology, all chosen locations can communicate directly without requiring changes to the broader IPv4 infrastructure.

6to4 tunneling supports only unicast IPv6 traffic using anycast relay routers and does not support IPv6 multicast, nor does it allow selective site-to-site control.