We are setting up a DMVPN backup network. Our hub locations has a single interent connection and some of our spoke locations will have dual internet connections for backup. One will be a NATed connection from a consumer broadband supplier and the other will be a 3G (last resort) connection. The device we are using is the new 819.
I am planning on setting up two tunnels from the spoke:
Tunnel1 = Internet based tunnel
Tunnel2 = 3G based tunnel
Both tunnels are going back to the same hub IP address. For testing we are using PSK but planning on migrating to PKI.
My quesion is: do I need to create two tunnels on the hub router, one for each source tunnel? If so, how do I distinguish them since they share the same interface IP?
Thanks ahead of time.
