We have single ospf area running over DMVPN and the number of branches keep increasing , I need help to divide ospf to muli-areas, our IP address allocated to branch offices are designed according to geographic locations.
I have the exact same issue... Did you find a way to configure this ?
Although there is an excelent white paper on DMVPN here, I don't see how you can have multiple mGRE tunnels at the hub. Perhaps with the "tunnel protection....shared. The shared keyword indicates that mutiple mGRE interfaces will use the IPSec encryption with the same source IP address".
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...