DMVPN Phase 1 with Static Mapping GNS3



DMVPN Phase 1 with Static Mapping


Berikut ciri2 DMVPN Phase 1 :
1. Hub menggunakan mGRE tunnel
2. Spoke menggunakan GRE tunnel
3. Antar spoke dapat saling berkomunikasi melalui hub


1. Topologi LAB
 

2. Metode LAB
·         Gunakan topologi di atas, konfigurasikan pengalamatan ip standard IDN
·         Konfigurasi static route di R1, R2 dan R3
·         Konfigurasi MGRE tunnel di HUB dan GRE tunnel di spoke
·         Konfigurasikan static mapping (ip nhrp map public-ip private-ip)
Dalam LAB ini, kita akan mengkonfigurasi :
1. HUB menggunakan MGRE tunnel
2. SPOKE menggunakan GRE tunnel
3. Untuk ip private/tunnel, berikut konfigurasinya :
> R1-HUB    = 192.168.100.1/24
> R2-Spoke1 = 192.168.100.2/24
> R3-Spoke2 = 192.168.100.3/24
> Multicast dan unicast hanya di antara HUB dan SPOKE

3. Verifikasi LAB
Ø  Pastikan static routing  jalan, semua router dapat melakukan ping
Ø  Pastikan HUB mempunyai 2 peers, gunakan perintah show dmvpn
Ø  Pastikan ip tunnel sudah benar, gunakan perintah show ip nhrp

4. Konfigurasi

R1-HUB
#interface Tunnel1
#ip address 192.168.100.1 255.255.255.0
#ip nhrp map 192.168.100.2 24.24.24.2
#ip nhrp map 192.168.100.3 34.34.34.3
#ip nhrp network-id 111
#tunnel source 14.14.14.1
#tunnel mode gre multipoint
!
#interface FastEthernet0/0
#ip address 14.14.14.1 255.255.255.0
!
#ip route 24.24.24.0 255.255.255.0 14.14.14.4
#ip route 34.34.34.0 255.255.255.0 14.14.14.4

Keterangan : Saat mengkonfigurasikan mGRE tunnel, kita menggunakan perintah tunnel mode gre multipoint. Karena mapping kita akan konfigurasikan static, maka kita masukkan manual menggunakan perintah ip nhrp map public-ip private-ip.

R2-SPOKE1 
#interface Tunnel1
#ip address 192.168.100.2 255.255.255.0
#ip nhrp map 192.168.100.1 14.14.14.1
#ip nhrp network-id 111
#tunnel source 24.24.24.2
#tunnel destination 14.14.14.1
!
#interface FastEthernet0/0
#ip address 24.24.24.2 255.255.255.0
!
#ip route 14.14.14.0 255.255.255.0 24.24.24.4
#ip route 34.34.34.0 255.255.255.0 24.24.24.4 

Keterangan : Konfigurasi GRE tunnel, kita menggunakan perintahtunnel destination (ip public HUB)Di spoke, hanya perlu melakukan mapping ke Hub saja.

R3-SPOKE2 

#interface Tunnel1
#ip address 192.168.100.3 255.255.255.0
#ip nhrp map 192.168.100.1 14.14.14.1
#ip nhrp network-id 111
#tunnel source 34.34.34.3
#tunnel destination 14.14.14.1
!
#interface FastEthernet0/0
#ip address 34.34.34.3 255.255.255.0
!
#ip route 14.14.14.0 255.255.255.0 34.34.34.4
#ip route 24.24.24.0 255.255.255.0 34.34.34.4 

R4-INTERNET
#interface FastEthernet0/0
#ip address 14.14.14.4 255.255.255.0
!i
#interface FastEthernet1/0
#ip address 24.24.24.4 255.255.255.0
!
#interface FastEthernet2/0
#ip address 34.34.34.4 255.255.255.0


Verifikasi : 

Lihat status DMVPN mapping 
R1-HUB#sh ip nhrp 
192.168.100.2/32 via 192.168.100.2, Tunnel1 created 00:12:51, never expire 
  Type: static, Flags: used 
  NBMA address: 24.24.24.2
192.168.100.3/32 via 192.168.100.3, Tunnel1 created 00:12:44, never expire 
   Type: static, Flags: used 
  NBMA address: 34.34.34.3 

Lihat konfigurasi DMVPN di Hub 
R1-HUB#show dmvpn
Legend: Attrb --> S - Static, D - Dynamic, I - Incompletea
        N - NATed, L - Local, X - No Socket
        # Ent --> Number of NHRP entries with same NBMA peer

Tunnel1, Type:Spoke, NHRP Peers:2,
 # Ent  Peer NBMA Addr Peer Tunnel Add State  UpDn Tm Attrb
 ----- --------------- --------------- ----- -------- -----
     1      24.24.24.2   192.168.100.2  NHRP    never S
     1      34.34.34.3   192.168.100.3  NHRP    never S 

Lihat konfigurasi DMVPN di Spoke 
R2-SPOKE1#show dmvpn
Legend: Attrb --> S - Static, D - Dynamic, I - Incompletea
        N - NATed, L - Local, X - No Socket
        # Ent --> Number of NHRP entries with same NBMA peer

Tunnel1, Type:Spoke, NHRP Peers:1,
 # Ent  Peer NBMA Addr Peer Tunnel Add State  UpDn Tm Attrb
 ----- --------------- --------------- ----- -------- -----
     1      14.14.14.1   192.168.100.1  NHRP    never S 

Lakukan traceroute dari R2 ke R3,pastikan melewati Hub 
R2-SPOKE1(config)#do trace 192.168.100.3
Type escape sequence to abort.
Tracing the route to 192.168.100.3
  1 192.168.100.1 112 msec 156 msec 116 msec  
  2 192.168.100.3 200 msec 228 msec 136 msec 
R2-SPOKE1(config)#

 
jika hasilnya seperti diatas berarti konfigurasi nya sudah benar


------------------------ Pardo  ----------------------------





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