Cisco: OSPF Sederhana
Revision as of 17:05, 23 December 2018 by Onnowpurbo (talk | contribs)
Router1:
enable
configure terminal
interface ethernet1/1
ip address 10.10.1.1 255.255.255.252
no shutdown
exit
interface ethernet1/2
ip address 10.10.1.5 255.255.255.252
no shutdown
exit
!
! NAT GNS3 gw 192.168.122.1
interface ethernet1/3
ip address 192.168.122.100 255.255.255.0
ip address 192.168.122.101 255.255.255.0 secondary
ip address 192.168.122.102 255.255.255.0 secondary
ip nat outside
no shutdown
ip route 0.0.0.0 0.0.0.0 192.168.122.1
ip nat pool no-overload 192.168.122.100 192.168.122.102 prefix 24
ip nat inside source list 7 pool no-overload
ip route 192.168.2.0 255.255.255.0 172.16.1.2 ! ! access NAT permit ke LAN 192.168.1.0/24 & 192.168.2.0/24 ! 192.168.2.0/24 berada di R2 access-list 7 permit 192.168.1.0 0.0.0.255 access-list 7 permit 192.168.2.0 0.0.0.255 exit
/ip address add address=10.10.1.1/30 interface=ether1 /ip address add address=10.10.1.5/30 interface=ether2 /ip address add address=210.13.1.0/28 interface=ether3 # kalau ether3 statik /ip dhcp-client add interface=ether3 disabled=no # kalau ether3 DHCP client
/ip firewall nat add chain=srcnat out-interface=ether3 action=masquareade /ip firewall nat print
Router2:
/ip address add address=10.10.1.6/30 interface=ether1 /ip address add address=10.10.1.9/30 interface=ether2 /ip address add address=172.16.1.1/16 interface=ether3
Router3:
/ip address add address=10.10.1.2/30 interface=ether1 /ip address add address=10.10.1.10/30 interface=ether2 /ip address add address=192.168.1.1/24 interface=ether3
Ada tiga (3) elemen dasar konfigurasi OSPF:
- Enable OSPF instance
- OSPF area configuration
- OSPF network configuration
instance name=default sudah ada, tidak perlu di tambahkan, tapi kalau perlu menambahkan caranya adalah sebagai berikut
R1:
/routing ospf instance add name=default /routing ospf instance enable default
R2:
/routing ospf instance add name=default /routing ospf instance enable default
R3:
/routing ospf instance add name=default /routing ospf instance enable default
Cek
/routing ospf instance print
Flags: X - disabled
0 name="default" router-id=0.0.0.0 distribute-default=never
redistribute-connected=as-type-1 redistribute-static=as-type-1
redistribute-rip=no redistribute-bgp=no redistribute-other-ospf=no
metric-default=1 metric-connected=20 metric-static=20 metric-rip=20
metric-bgp=auto metric-other-ospf=auto in-filter=ospf-in
out-filter=ospf-out
Catatan: Ingat bahwa backbone area-id adalah 0.0.0.0.
R1
/routing ospf network add network=10.10.1.0/30 area=backbone /routing ospf network add network=10.10.1.4/30 area=backbone
R2
/routing ospf network add network=10.10.1.4/30 area=backbone /routing ospf network add network=10.10.1.8/30 area=backbone /routing ospf network add network=172.16.0.0/16 area=backbone
R3
/routing ospf network add network=10.10.1.0/30 area=backbone /routing ospf network add network=10.10.1.8/30 area=backbone /routing ospf network add network=192.168.1.0/24 area=backbone
Atau kalau di aggregate
R1:
/routing ospf network add network=10.10.1.0/24 area=backbone
R2:
/routing ospf network add network=172.16.0.0/16 area=backbone /routing ospf network add network=10.10.1.0/24 area=backbone
R3:
/routing ospf network add network=192.168.1.0/24 area=backbone /routing ospf network add network=10.10.1.0/24 area=backbone
Verify
Cek
R1:
/routing ospf interface print /routing ospf neighbor print /ip route print
Lakukan yang sama untuk R2, R3
Referensi