CCNP - DMVPN Phase 2

 

Lab 19 DMVPN Phase 2


Pada phase 2, jika SPOKE-1 mau ke SPOKE-2 maka dia akan melewati HUB Tetapi hanya 1 kali, untuk ke-2, ke-3, Dst... akan langsung ke SPOKE yang dituju tanpa harus lewat 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(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(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

Sekarang kita cek DMVPN-nya

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 

Kita cek NHRP-nya

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  < >

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