To andrea for certain types of data and certain types of business encryption is required on all media.
The DMVPN is designed exactly for encryption on a mpls network. Your need for DMVPN will depend on how you data flows. If you data is all hub and spoke with no data between the spokes then a manual gre tunnel solution will be simpler to set up. But if your data flows like this then you really shouldn't be paying for MPLS in the first place.
I'm not sure if you can run a multipoint ipsec configuration without tunnels. Most the time this requirement is because of the need to carry routing protcols.
DMVPN is mostly to make your life easier. You could setup a full mesh of tunnels but it will depend on the number of endpoint. Even when you start thinking about how much configuration of ipsec and gre is involved with only say 5 nodes to run a full mesh it becomes a pain. Since DMVPN only creates the connections when they are used it should reduce the load on the routers if you assume you do not have any to any traffic runn all the time.
DMVPN and the NHRP stuff takes a little while to get used to when you are troubleshooting things but it is much simpler than full manual configurations in a large network
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...