I am exploring the idea of DMVPN. Currently I have about 15 sites on Cisco 2811 ISR routers connected to an ASA at the HQ on an IPSEC vpn. This number is expect grow to over 30. I'd like to incorporate a fully meshed vpn terminated back to a Cisco 3825 that is behind the ASA for branch to HQ traffic. Any docs or suggestions concerning this would be appreciated.
I have this problem too.