In my today lab I will try to implement DMVPN with some additional features like VRF and IPv6. As you see in the below picture, routers can establish secure connection over ASA. My basic ip/ipv6 configuration: hub: hostname R1 ! vrf definition GREEN ! address - family ipv6 exit - address - family ! ip vrf RED ! ipv6 unicast - routing ! interface Loopback100 vrf forwarding GREEN no ip address ipv6 address 2001 : 100 :: 1 / 64 ! interface FastEthernet0 / 0 ip vrf forwarding RED ip address 5.5 . 5.1 255.255 . 255.0 speed auto duplex auto ! ip route vrf RED 0.0 . 0.0 0.0 . 0.0 5.5 . 5.2 next the spoke1: hostname R2 ! vrf definition GREEN ! address - family ipv6 exit - address - family ! ip vrf RED ! ipv6 unicast - routing ! interface Loopback100 vrf forwarding GREEN no ip address ipv6 address 2001 : 200 :: 2 / 64 ! interface FastEthernet0 / 0 ip vrf forwarding RED ip address 6.6 . 6.1 255.255 . 255.0 duplex aut...