I need point-to-multipoint tunnels for a virtual overlay. Encryption is not necessary as the transport network is a corporate network and no internet. I also don't need the ability of direct spoke to spoke communication. At the moment I'm working with GRE point-to-point links, but the config on the HUB starts to look a bit crowded, so I would prefer a point to multipoint technology.
Any help is welcome, and a will be graded.
Yes, in fact it's enough to not configure "tunnel protection" under the tunnel interface and voila, crypto-less DMVPN.
Hope this helps, please rate post if it does!