hostname Spoke1 ! no ip domain lookup ip multicast-routing ip cef ! interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface Tunnel0 ip address 172.16.123.2 255.255.255.0 no ip redirects ip pim sparse-mode ip nhrp authentication DMVPN ip nhrp map 172.16.123.1 192.168.123.1 ip nhrp map multicast 192.168.123.1 ip nhrp network-id 1 ip nhrp nhs 172.16.123.1 ip nhrp shortcut ip ospf network point-to-multipoint tunnel source GigabitEthernet0/1 tunnel mode gre multipoint ! interface GigabitEthernet0/0 ip address 192.168.1.1 255.255.255.0 ip pim sparse-mode no cdp enable ! interface GigabitEthernet0/1 ip address 192.168.123.2 255.255.255.0 no cdp enable ! router ospf 1 network 2.2.2.2 0.0.0.0 area 1 network 172.16.123.0 0.0.0.255 area 1 network 192.168.1.0 0.0.0.255 area 1 ! ip pim rp-address 1.1.1.1 ! end