CISCO实战案例：OSPF多区域配置
实验题目：
Ospf多区域配置
实验应用
场景描述：
公司总部位于武汉，在襄樊.十堰拥有分公司，现将3个地方的办公司网络用OSPF连接起来
实验使用
到的相关
知识点总
结
1：router ospf 进程号
Network 网络号 反码 area 区域号
Aera 区域号 stub (no-summary )
2：router ospf 进程号
Redistribute rip metric 1—16777214 metric-type 1/2 subnets
3：router rip
Redistribute ospf 进程号metric 0—16
4.sh ip route
5.
sh ip ospf neighbor
实验拓扑：
实验
步骤：
1.1：R1配置命令：
ena
conf t
host r1
int e0/0
ip add 2.1.1.2 255.255.255.0
no sh
exit
int loopback
0
ip add 1.1.1.1 255.255.255.0
exit
router rip
network 2.0.0.0
network 1.0.0.0
exit
exit
2.1：R2的配置：
ena
conf
t
host r2
int e0/0
ip add 2.1.1.1 255.255.255.0
no sh
exit
int e0/1
ip add 192.168.1.1 255.255.255.0
no sh
exit
int loopback 0
ip add 192.168.64.1 255.255.255.0
exit
router rip
network 2.0.0.0
redistribute ospf 1 metric 14
exit
router ospf 1
network 192.168.64.0 0.0.0.255 area 1
network 192.168.1.0 0.0.0.255 area 0
redistribute
rip metric 999 metric-type 1
subnets
exit
exit
3.1
R3的配置：
ena
conf t
host r3
int e0/0
ip add 192.168.1.3 255.255.255.0
no sh
exit
int e0/1
ip add 192.168.24.1 255.255.255.252
no sh
exit
int loop 0
ip add 3.1.1.1 255.255.255.0
exit
router ospf 1
network 192.168.1.0 0.0.0.255 area 0
network 192.168.24.0 0.0.0.3 area 51
network 3.1.1.0 0.255.255.255 area 3
area
51
stub
no-summary
exit
exit
4.1 R4的配置：
ena
conf t
host r4
int e0/0
ip add 192.168.24.2 255.255.255.252
no sh
exit
router ospf 1
network 192.168.24.0 0.0.0.3 area 51
area
51
stub
exit
exit
实验中遇到的问题及相应解决方法
实验验证：
r1#sh 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 2.1.1.1 to network 0.0.0.0
1.0.0.0/24 is subnetted, 1 subnets
C
1.1.1.0 is directly connected, Loopback0
2.0.0.0/24 is subnetted, 1 subnets
C
2.1.1.0 is directly connected, Ethernet0/0
33.0.0.0/24 is subnetted, 1 subnets
C
33.33.33.0 is directly connected, Loopback3
R
3.0.0.0/8 [120/4] via 2.1.1.1, 00:00:15, Ethernet0/0
R
192.168.24.0/24 [120/4] via 2.1.1.1, 00:00:15, Ethernet0/0
R
192.168.64.0/24 [120/4] via 2.1.1.1, 00:00:15, Ethernet0/0
R
192.168.1.0/24 [120/4] via 2.1.1.1, 00:00:15, Ethernet0/0
*************************************
r2#sh 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 2.1.1.2 to network 0.0.0.0
1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
S
1.1.1.0/24 [1/0] via 2.1.1.2
R
1.0.0.0/8 [120/1] via 2.1.1.2, 00:00:00, Ethernet0/0
2.0.0.0/24 is subnetted, 1 subnets
C
2.1.1.0 is directly connected, Ethernet0/0
33.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
S
33.33.33.0/24 [1/0] via 2.1.1.2
R
33.0.0.0/8 [120/1] via 2.1.1.2, 00:00:00, Ethernet0/0
3.0.0.0/32 is subnetted, 1 subnets
O IA
3.1.1.1 [110/11] via 192.168.1.3, 01:36:54, Ethernet0/1
192.168.24.0/30 is subnetted, 1 subnets
O IA
192.168.24.0 [110/20] via 192.168.1.3, 01:25:13, Ethernet0/1
C
192.168.64.0/24 is directly connected, Loopback0
C
192.168.1.0/24 is directly connected, Ethernet0/1
*********************************************
r3#sh 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
1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O E1
1.1.1.0/24 [110/210] via 192.168.1.1, 01:24:00, Ethernet0/0
O E1
1.0.0.0/8 [110/1009] via 192.168.1.1, 01:24:00, Ethernet0/0
2.0.0.0/24 is subnetted, 1 subnets
O E1
2.1.1.0 [110/1009] via 192.168.1.1, 01:24:00, Ethernet0/0
33.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
O E1
33.33.33.0/24 [110/210] via 192.168.1.1, 01:24:00, Ethernet0/0
O E1
33.0.0.0/8 [110/1009] via 192.168.1.1, 01:24:00, Ethernet0/0
3.0.0.0/24 is subnetted, 1 subnets
C
3.1.1.0 is directly connected, Loopback0
192.168.24.0/30 is subnetted, 1 subnets
C
192.168.24.0 is directly connected, Ethernet0/1
192.168.64.0/32 is subnetted, 1 subnets
O IA
192.168.64.1 [110/11] via 192.168.1.1, 01:24:02, Ethernet0/0
C
192.168.1.0/24 is directly connected, Ethernet0/0
*****************************************************
r4#sh 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 192.168.24.1 to network 0.0.0.0
192.168.24.0/30 is subnetted, 1 subnets
C
192.168.24.0 is directly connected, Ethernet0/0
O*IA 0.0.0.0/0 [110/11] via 192.168.24.1, 01:24:41, Ethernet0/0
************************************************
设置末梢区域，必须两边都设置。设置完全末梢区域，只需要在ABR上设置，但需要确保另一个已经是stub了。