多区域OSPF的基本配置
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一、场景设置
 二、具体配置
1、RA的配置如下：
Router(config)#hostname RA
RA(config)#interface Loopback0 RA(config-if)#ip address 1.1.1.1 255.255.255.0 RA(config-if)#ip ospf network point-to-point RA(config-if)#exit RA(config)#interface Serial1/0 RA(config-if)#ip address 200.200.10.1 255.255.255.0 RA(config-if)#no shutdown RA(config-if)#exit RA(config)#router ospf 1 RA(config-router)#network 1.1.1.0 0.0.0.255 area 1 RA(config-router)#network 200.200.10.0 0.0.0.255 area 1 RA(config-router)#exit 2、RB的配置如下：
Router(config)#hostname RB
RB(config)#interface Loopback0 RB(config-if)#ip address 2.2.2.2 255.255.255.0 RB(config-if)#ip ospf network point-to-point RB(config-if)#exit RB(config)#interface Serial1/0 RB(config-if)#ip address 200.200.10.2 255.255.255.0 RB(config-if)#no shutdown RB(config-if)#exit RB(config)#interface Serial1/1 RB(config-if)#ip address 200.200.20.1 255.255.255.0 RB(config-if)#no shutdown RB(config-if)#exit RB(config)#router ospf 1 RB(config-router)#network 200.200.10.0 0.0.0.255 area 1 RB(config-router)#network 200.200.20.0 0.0.0.255 area 0 RB(config-router)#network 2.2.2.0 0.0.0.255 area 0 RB(config-router)#exit 3、RC的配置如下：
Router(config)#hostname RC
RC(config)#interface Loopback0 RC(config-if)#ip address 3.3.3.3 255.255.255.0 RC(config-if)#ip ospf network point-to-point RC(config-if)#exit RC(config)#interface Serial1/1 RC(config-if)#ip address 200.200.20.2 255.255.255.0 RC(config-if)#no shutdown RC(config-if)#exit RC(config)#interface Serial1/0 RC(config-if)#ip address 200.200.30.1 255.255.255.0 RC(config-if)#no shutdown RC(config-if)#exit RC(config)#router ospf 1 RC(config-router)#network 3.3.3.0 0.0.0.255 area 0 RC(config-router)#network 200.200.20.0 0.0.0.255 area 0 RC(config-router)#network 200.200.30.0 0.0.0.255 area 2 RC(config-router)#exit 4、RD的配置如下：
Router(config)#hostname RD
RD(config)#interface Loopback0 RD(config-if)#ip address 4.4.4.4 255.255.255.0 RD(config-if)#ip ospf network point-to-point RD(config-if)#exit RD(config)#interface Serial1/0 RD(config-if)#ip address 200.200.30.2 255.255.255.0 RD(config-if)#no shutdown RD(config-if)#exit RD(config)#router ospf 1 RD(config-router)#network 4.4.4.0 0.0.0.255 area 2 RD(config-router)#network 200.200.30.0 0.0.0.255 area 2 RD(config-router)#exit 三、验证配置
1、查看路由器的OSPF路由表：
RA#show ip route ospf
O IA 200.200.20.0/24 [110/128] via 200.200.10.2, 00:10:10, Serial1/0 2.0.0.0/24 is subnetted, 1 subnets O IA 2.2.2.0 [110/65] via 200.200.10.2, 00:15:33, Serial1/0 3.0.0.0/24 is subnetted, 1 subnets O IA 3.3.3.0 [110/129] via 200.200.10.2, 00:07:49, Serial1/0 4.0.0.0/24 is subnetted, 1 subnets O IA 4.4.4.0 [110/193] via 200.200.10.2, 00:01:53, Serial1/0 O IA 200.200.30.0/24 [110/192] via 200.200.10.2, 00:02:43, Serial1/0 RB#show ip route ospf
1.0.0.0/24 is subnetted, 1 subnets O 1.1.1.0 [110/65] via 200.200.10.1, 00:16:05, Serial1/0 3.0.0.0/24 is subnetted, 1 subnets O 3.3.3.0 [110/65] via 200.200.20.2, 00:03:25, Serial1/1 4.0.0.0/24 is subnetted, 1 subnets O IA 4.4.4.0 [110/129] via 200.200.20.2, 00:02:34, Serial1/1 O IA 200.200.30.0/24 [110/128] via 200.200.20.2, 00:03:25, Serial1/1 RC#show ip route ospf
1.0.0.0/24 is subnetted, 1 subnets O IA 1.1.1.0 [110/129] via 200.200.20.1, 00:03:19, Serial1/1 2.0.0.0/24 is subnetted, 1 subnets O 2.2.2.0 [110/65] via 200.200.20.1, 00:04:10, Serial1/1 4.0.0.0/24 is subnetted, 1 subnets O 4.4.4.0 [110/65] via 200.200.30.2, 00:03:19, Serial1/0 O IA 200.200.10.0/24 [110/128] via 200.200.20.1, 00:03:19, Serial1/1 RD#show ip route ospf
O IA 200.200.20.0/24 [110/128] via 200.200.30.1, 00:04:01, Serial1/0 1.0.0.0/24 is subnetted, 1 subnets O IA 1.1.1.0 [110/193] via 200.200.30.1, 00:04:01, Serial1/0 2.0.0.0/24 is subnetted, 1 subnets O IA 2.2.2.0 [110/129] via 200.200.30.1, 00:04:01, Serial1/0 3.0.0.0/24 is subnetted, 1 subnets O IA 3.3.3.0 [110/65] via 200.200.30.1, 00:04:01, Serial1/0 O IA 200.200.10.0/24 [110/192] via 200.200.30.1, 00:04:01, Serial1/0 2、查看路由器详细的邻居信息：
RA#show ip ospf neighbor detail
Neighbor 2.2.2.2, interface address 200.200.10.2 In the area 1 via interface Serial1/0 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:35 Neighbor is up for 00:21:53 Index 1/1, retransmission queue length 0, number of retransmission 1 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 1, maximum is 1 Last retransmission scan time is 0 msec, maximum is 0 msec RB#show ip ospf neighbor detail
Neighbor 3.3.3.3, interface address 200.200.20.2 In the area 0 via interface Serial1/1 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:33 Neighbor is up for 00:14:43 Index 1/2, retransmission queue length 0, number of retransmission 1 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 1, maximum is 1 Last retransmission scan time is 0 msec, maximum is 0 msec Neighbor 1.1.1.1, interface address 200.200.10.1 In the area 1 via interface Serial1/0 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:36 Neighbor is up for 00:23:24 Index 1/1, retransmission queue length 0, number of retransmission 0 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 0, maximum is 0 Last retransmission scan time is 0 msec, maximum is 0 msec RC#show ip ospf neighbor detail
Neighbor 2.2.2.2, interface address 200.200.20.1 In the area 0 via interface Serial1/1 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:39 Neighbor is up for 00:16:10 Index 1/1, retransmission queue length 0, number of retransmission 0 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 0, maximum is 0 Last retransmission scan time is 0 msec, maximum is 0 msec Neighbor 4.4.4.4, interface address 200.200.30.2 In the area 2 via interface Serial1/0 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:32 Neighbor is up for 00:10:14 Index 1/2, retransmission queue length 0, number of retransmission 1 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 1, maximum is 1 Last retransmission scan time is 0 msec, maximum is 0 msec RD#show ip ospf neighbor detail
Neighbor 3.3.3.3, interface address 200.200.30.1 In the area 2 via interface Serial1/0 Neighbor priority is 0, State is FULL, 6 state changes DR is 0.0.0.0 BDR is 0.0.0.0 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:34 Neighbor is up for 00:11:05 Index 1/1, retransmission queue length 0, number of retransmission 0 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 0, maximum is 0 Last retransmission scan time is 0 msec, maximum is 0 msec 3、查看路由器的OSPF数据库：
RA#show ip ospf database
OSPF Router with ID (1.1.1.1) (Process ID 1)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 1600 0x80000003 0x005CE9 3 2.2.2.2 2.2.2.2 1545 0x80000003 0x00E073 2 Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
2.2.2.0 2.2.2.2 1540 0x80000001 0x000F1F 3.3.3.0 2.2.2.2 1076 0x80000001 0x006D7D 4.4.4.0 2.2.2.2 720 0x80000001 0x00CBDB 200.200.20.0 2.2.2.2 1217 0x80000001 0x0057F7 200.200.30.0 2.2.2.2 770 0x80000001 0x006B99 RB#show ip ospf database
OSPF Router with ID (2.2.2.2) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 1096 0x80000004 0x0052CE 3 3.3.3.3 3.3.3.3 801 0x80000004 0x00E830 3 Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 2.2.2.2 1560 0x80000001 0x00B53B 4.4.4.0 3.3.3.3 746 0x80000001 0x002BB8 200.200.10.0 2.2.2.2 1560 0x80000001 0x00C593 200.200.30.0 3.3.3.3 796 0x80000001 0x00CA76 Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
1.1.1.1 1.1.1.1 1616 0x80000003 0x005CE9 3 2.2.2.2 2.2.2.2 1559 0x80000003 0x00E073 2 Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
2.2.2.0 2.2.2.2 1555 0x80000001 0x000F1F 3.3.3.0 2.2.2.2 1093 0x80000001 0x006D7D 4.4.4.0 2.2.2.2 747 0x80000001 0x00CBDB 200.200.20.0 2.2.2.2 1234 0x80000001 0x0057F7 200.200.30.0 2.2.2.2 798 0x80000001 0x006B99 RC#show ip ospf database
OSPF Router with ID (3.3.3.3) (Process ID 1)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 1132 0x80000004 0x0052CE 3 3.3.3.3 3.3.3.3 826 0x80000004 0x00E830 3 Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 2.2.2.2 1596 0x80000001 0x00B53B 4.4.4.0 3.3.3.3 771 0x80000001 0x002BB8 200.200.10.0 2.2.2.2 1596 0x80000001 0x00C593 200.200.30.0 3.3.3.3 822 0x80000001 0x00CA76 Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count
3.3.3.3 3.3.3.3 776 0x80000003 0x009781 2 4.4.4.4 4.4.4.4 776 0x80000003 0x007384 3 Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 3.3.3.3 827 0x80000001 0x001A92 2.2.2.0 3.3.3.3 850 0x80000001 0x007376 3.3.3.0 3.3.3.3 850 0x80000001 0x00CC5A 200.200.10.0 3.3.3.3 850 0x80000001 0x002AEA 200.200.20.0 3.3.3.3 851 0x80000001 0x003912 RD#show ip ospf database
OSPF Router with ID (4.4.4.4) (Process ID 1)
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link count
3.3.3.3 3.3.3.3 826 0x80000003 0x009781 2 4.4.4.4 4.4.4.4 826 0x80000003 0x007384 3 Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 3.3.3.3 878 0x80000001 0x001A92 2.2.2.0 3.3.3.3 878 0x80000001 0x007376 3.3.3.0 3.3.3.3 878 0x80000001 0x00CC5A 200.200.10.0 3.3.3.3 878 0x80000001 0x002AEA 200.200.20.0 3.3.3.3 878 0x80000001 0x003912 本文出自 “Uione” 博客，请务必保留此出处http://weiqijun.blog.51cto.com/338163/74326 本文出自 51CTO.COM技术博客 |
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