Single-Area OSPF

Setup

IP Konfiguration

R1

interface FastEthernet0/0
 ip address 10.1.0.1 255.255.255.0

interface FastEthernet1/0
 ip address 172.16.0.1 255.255.255.0

R2

interface FastEthernet0/0
 ip address 10.2.0.1 255.255.255.0

interface FastEthernet1/0
 ip address 172.16.0.2 255.255.255.0

R3

interface FastEthernet0/0
 ip address 10.3.0.1 255.255.255.0

interface FastEthernet1/0
 ip address 172.16.0.3 255.255.255.0

OSPF Konfiguration

R1

router ospf 1
 network 10.1.0.0 0.0.0.255 area 50
 network 172.16.0.0 0.0.0.255 area 50

R2

router ospf 1
 network 10.2.0.0 0.0.0.255 area 50
 network 172.16.0.0 0.0.0.255 area 50

R3

router ospf 1
 network 10.3.0.0 0.0.0.255 area 50
 network 172.16.0.0 0.0.0.255 area 50

OSPF Überprüfen

R1

• show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
172.16.0.2        1   FULL/BDR        00:00:38    172.16.0.2      FastEthernet1/0
172.16.0.3        1   FULL/DR         00:00:36    172.16.0.3      FastEthernet1/0

• show ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     172.16.0.0/24 is subnetted, 1 subnets
C       172.16.0.0 is directly connected, FastEthernet1/0
     10.0.0.0/24 is subnetted, 3 subnets
O       10.2.0.0 [110/2] via 172.16.0.2, 00:16:55, FastEthernet1/0
O       10.3.0.0 [110/2] via 172.16.0.3, 00:16:55, FastEthernet1/0
C       10.1.0.0 is directly connected, FastEthernet0/0