I about to set up a hub and spoke environment consist of several Cisco 2811 routers.
For my VPN we are using Dynamic multipoint VPN and for “IKE” we are using pre-share keys.
I would like to use different pre-share key for each location .
On the spoke I can easily achieve this ( inserting pre-share ) but from the Hub stand point I am unsure how to
achieve this ( separate key for each spoke network).
Attach is print screen (using SDM) of the Hub router .
You can setup unique key for each spoke. It works same as point to point. If you are using single tier DMVPN, then the peer IP will be the tunnel end point.
I have implemented many time a VPN with multiple point to point tunnels where each tunnel uses a unique ISAKMP shared key. And this works very well. You are correct in understanding that I have not implemented a multipoint VPN at the hub and tried to implement unique keys for each remote. I would think that this would work, but can not say from experience whether it does or not.