On my router is is possible to create multiple site to site tunnels to different destinations ? i gather you jsut create multiple cryptomaps and assign them to the outside interface ?
Too many tunnel interfaces? A Cisco router should be able to handle that. How many spokes are involved?
Design wise you can proceed via many ways:
A) HUB does not need to initiate connections:
1- Leverage a tunnel type mgre [ on the hub] aka DMVPN. Then we have 1 Multipoint tunnel interface.
2- Use DVTI [ spoke ] / DVTI [ hub ] with EZVPN
3- Use VTI on spokes + DVTI on hub with a routing protocol
B) HUB need to initiate connections:
use Tunnel protection, one tunnel per spoke.