Notes:
R1 = HUB VPN Router
R2, R3 = Spoke VPN Router
R5 = Emulate as WAN
In This Screnario all R1, R2 , R3 are not directly connect they are Routed Via R5 to get the R1 interface in this case as Hub DMVPN Router.
Routing Protocol all Spoke Route, I using is default route to get Interface in R1 ethernet.
Configution :
R1
===========================
!
interface Ethernet0/1
ip address 10.1.15.1 255.255.255.0
half-duplex
!
!
interface Tunnel0
ip address 192.168.0.1 255.255.255.0
no ip redirects
ip nhrp map multicast dynamic
ip nhrp network-id 1
tunnel source 10.1.15.1
tunnel mode gre multipoint
!
ip route 0.0.0.0 0.0.0.0 10.1.15.2
!
R2
===========================
!
interface Ethernet0/2
ip address 10.1.25.1 255.255.255.0
half-duplex
!
!
interface Tunnel0
ip address 192.168.0.2 255.255.255.0
no ip redirects
ip nhrp map 192.168.0.1 10.1.15.1
ip nhrp map multicast 10.1.15.1
ip nhrp network-id 1
ip nhrp nhs 192.168.0.1
tunnel source 10.1.25.1
tunnel mode gre multipoint
!
ip route 0.0.0.0 0.0.0.0 10.1.25.2
!
R3
===========================
!
interface Ethernet0/2
ip address 10.1.35.1 255.255.255.0
half-duplex
!
interface Tunnel0
ip address 192.168.0.3 255.255.255.0
no ip redirects
ip nhrp map 192.168.0.1 10.1.15.1
ip nhrp map multicast 10.1.15.1
ip nhrp network-id 1
ip nhrp nhs 10.1.15.1
ip nhrp nhs 192.168.0.1
tunnel source 10.1.35.1
tunnel mode gre multipoint
!
ip route 0.0.0.0 0.0.0.0 10.1.35.2
!
R4
=====================================
!
interface Ethernet0/2
ip address 10.1.45.1 255.255.255.0
half-duplex
!
interface Tunnel0
ip address 192.168.0.4 255.255.255.0
no ip redirects
ip nhrp map 192.168.0.1 10.1.15.1
ip nhrp map multicast 10.1.15.1
ip nhrp network-id 1
ip nhrp nhs 10.1.15.1
ip nhrp nhs 192.168.0.1
ip ospf network point-to-multipoint
ip ospf mtu-ignore
tunnel source 10.1.45.1
tunnel mode gre multipoint
!
ip route 0.0.0.0 0.0.0.0 10.1.45.2
!
Verification :
R1#sh ip nhrp det
192.168.0.2/32 via 192.168.0.2, Tunnel0 created 00:07:38, expire 01:52:21
Type: dynamic, Flags: authoritative unique registered
NBMA address: 10.1.25.1
192.168.0.3/32 via 192.168.0.3, Tunnel0 created 14:23:51, expire 01:36:01
Type: dynamic, Flags: authoritative unique registered
NBMA address: 10.1.35.1
192.168.0.4/32 via 192.168.0.4, Tunnel0 created 14:13:45, expire 01:40:31
Type: dynamic, Flags: authoritative unique registered
NBMA address: 10.1.45.1
R1#sh ip nhrp brie
Target Via NBMA Mode Intfc Claimed
192.168.0.2/32 192.168.0.2 10.1.25.1 dynamic Tu0 < >
192.168.0.3/32 192.168.0.3 10.1.35.1 dynamic Tu0 < >
192.168.0.4/32 192.168.0.4 10.1.45.1 dynamic Tu0 < >
//