Phase 2 DMVPN

HUB

HUB(config)#int tunnel0

HUB(config-if)#ip add 192.168.10.1 25

HUB(config-if)#ip add 192.168.10.1 255.255.255.0

HUB(config-if)#tunnel mode gre multipoint

HUB(config-if)#tunnel source 12.12.12.1

HUB(config-if)#ip nhrp network-id 1

HUB(config-if)#ip nhrp authentication IDN

HUB(config-if)#ip nhrp map multicast dynamic

SPOKE 1

Spoke-1(config)#int tun0

Spoke-1(config-if)#ip add 192.168.10.2 255.255.255.0

Spoke-1(config-if)#tunnel mode gre multipoint

Spoke-1(config-if)#tunnel source 23.23.23.1

Spoke-1(config-if)#ip nhrp network-id 1

Spoke-1(config-if)#ip nhrp authentication IDN

Spoke-1(config-if)#ip nhrp map 192.168.10.1 12.12.12.1 Spoke-

1(config-if)#ip nhrp nhs 192.168.10.1

Spoke-1(config-if)#ip nhrp map multicast 12.12.12.1 

SPOKE 2

Spoke-2(config)#int tun0

Spoke-2(config-if)#ip add 192.168.10.3 255.255.255.0

Spoke-2(config-if)#tunnel mode gre multipoint

Spoke-2(config-if)#tunnel source 24.24.24.1

Spoke-2(config-if)#ip nhrp network-id 1

Spoke-2(config-if)#ip nhrp authentication IDN

Spoke-2(config-if)#ip nhrp map 192.168.10.1 12.12.12.1

Spoke-2(config-if)#ip nhrp nhs 192.168.10.1

Spoke-2(config-if)#ip nhrp map multicast 12.12.12.1

Kita verifikasi

HUB

HUB#show dmvpn

Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete

 N - NATed, L - Local, X - No Socket

    # Ent --> Number of NHRP entries with same NBMA peer

NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting

UpDn Time --> Up or Down Time for a Tunnel

Interface: Tunnel0, IPv4 NHRP Details

Type:Hub, NHRP Peers:2,

 # Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb

----- --------------- --------------- ----- -------- -----

1 23.23.23.1...........................192.168.10.2      UP 00:26:05 D

1 24.24.24.1                               192.168.10.3     UP 00:23:50 D 

Verifikasi NHRP 

HUB

HUB#show ip nhrp

192.168.10.2/32 via 192.168.10.2

  Tunnel0 created 00:26:09, expire 01:33:50

  Type: dynamic, Flags: unique registered used

  NBMA address: 23.23.23.1

192.168.10.3/32 via 192.168.10.3

  Tunnel0 created 00:23:54, expire 01:36:05

  Type: dynamic, Flags: unique registered used

  NBMA address: 24.24.24.1

HUB#show ip nhrp brief

   Target         Via             NBMA     Mode     Intfc             Claimed

192.168.10.2/32     192.168.10.2..................... 23.23.23.1 dynamic Tu0  < >

192.168.10.3/32     192.168.10.3                         24.24.24.1 dynamic Tu0  < >