DMVPN Lab 3 : Phase 1 Dynamic Mapping With OSPF

 LAB 3 

Sebelum lanjut, Hapus terlebih dahulu routing EIGRP yang sebelumnya di router HUB, Spoke-1, Spoke-2

HUB, Spoke-1, Spoke-2

no router eigrp 12

Kemudian konfigurasi routing ospf 

HUB

HUB(config)#router ospf 12 
HUB(config-router)#network 1.1.1.1 0.0.0.0 area 0 
HUB(config-router)#network 192.168.10.0 0.0.0.255 area 0 
HUB(config-router)#int tun0 

HUB(config-if)#ip ospf network broadcast

Spoke-1

Spoke-1(config)#router ospf 12 
Spoke-1(config-router)#network 2.2.2.2 0.0.0.0 area 0 
Spoke-1(config-router)#network 192.168.10.0 0.0.0.255 area 0 
Spoke-1(config-router)#int tun0 

Spoke-1(config-if)#ip ospf network broadcast

Spoke-2

Spoke-2(config)#router ospf 12 
Spoke-2(config-router)#network 3.3.3.3 0.0.0.0 area 0 
Spoke-2(config-router)#network 192.168.10.0 0.0.0.255 area 0 
Spoke-2(config-router)#int tun0 

Spoke-2(config-if)#ip ospf network broadcast

Note : 

Ada 2 jenis network type ospf yang dapat running di dmvpn, (broadcast & point-to- multipoint), dengan catatan settingan network type point-tomultipoint hanya di router hub saja. Dan jika menggunakan broadcast maka ada pemilihan DR. 

Sekarang lakukan verifikasi : 

HUB

HUB#show ip ospf int tun0 
Tunnel0 is up, line protocol is up 
 Internet Address 192.168.10.1/24, Area 0, Attached via Network 
Statement 
 Process ID 12, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1000 
 Topology-MTID Cost Disabled Shutdown Topology Name 
0 1000 no no Base 
Transmit Delay is 1 sec, State DR, Priority 1 
Designated Router (ID) 1.1.1.1, Interface address 192.168.10.1 
Backup Designated router (ID) 3.3.3.3, Interface address 192.168.10.3 
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 
 oob-resync timeout 40 
 Hello due in 00:00:07 
Supports Link-local Signaling (LLS) 
Cisco NSF helper support enabled 
IETF NSF helper support enabled 
Index 2/2, flood queue length 0 
Next 0x0(0)/0x0(0) 
Last flood scan length is 1, maximum is 1 
 Last flood scan time is 0 msec, maximum is 4 msec  
Neighbor Count is 2, Adjacent neighbor count is 2 
 Adjacent with neighbor 2.2.2.2 
 Adjacent with neighbor 3.3.3.3 (Backup Designated Router) 

Suppress hello for 0 neighbor(s)

Coba laukan ping 

Spoke-1

Spoke-1#ping 1.1.1.1 
Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: 
!!!!! 

Success rate is 100 percent (5/5), round-trip min/avg/max = 48/60/76 ms 

Spoke-1#ping 3.3.3.3 
Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds: 
!!!!! 

Success rate is 100 percent (5/5), round-trip min/avg/max = 80/92/108 ms

Coba lakukan Trcaceroute

Spoke-1

Spoke-1#traceroute 3.3.3.3 
Type escape sequence to abort. 
Tracing the route to 
3.3.3.3 VRF info: (vrf in name/id, vrf out name/id) 
 1 192.168.10.1 124 msec 48 msec 108 msec 

 2 192.168.10.3 164 msec 128 msec * 

Spoke-1#traceroute 3.3.3.3 
Type escape sequence to abort.
Tracing the route to 
3.3.3.3 VRF info: (vrf in name/id, vrf out name/id) 
 1 192.168.10.1 64 msec 180 msec 132 msec 

 2 192.168.10.3 160 msec 112 msec *

Pada phase 1 jika antar spoke ingin berkomunikasi maka hop pertama akan diarahkan ke sisi hub terlebih dahulu.