实验拓扑如上图所示

 

各路由器配置接口IP地址,并均启用环回口,各路由器启用如图中的路由协议

更改R3R4的接口优先级为0,使得R2成为DR

R5上启用多个环回口,用于做路由汇总,配置如下:

Loopback0                  5.5.5.5       

Loopback1                  172.5.1.1          

Loopback2                  172.5.2.1          

Loopback3                  172.5.3.1     

 

R9上启用多个环回口,用于做路由汇总,配置如下:

Loopback0                  9.9.9.9              

Loopback1                  172.16.1.1          

Loopback2                  172.16.2.1          

Loopback3                  172.16.3.1     

 

R8上将EIGRP10的路由重发布到OSPF中,配置如下:

router ospf 10

 log-adjacency-changes

 redistribute eigrp 10 metric-type 1 subnets

 

R8上使用ip default-network命令,给EIGRP10添加默认路由,配置如下:

interface Loopback1

 ip address 192.168.8.1 255.255.255.0 

router eigrp 10

 network 192.168.8.0     //将环回口所在的主类网段宣告进EIGRP

 network 192.168.89.0

 no auto-summary

 

ip default-network 192.168.8.0   指定环回口所在网段为默认路由

 

 

 

R4上将RIP的路由重发布到OSPF中,配置如下:

router ospf 10

 log-adjacency-changes

 redistribute rip metric-type 1 subnets

R4上向RIP域中宣告默认路由,配置如下:

router rip

 version 2

 network 192.168.47.0

 default-information originate

 no auto-summary

 

 

查看R9的路由表如下:

Gateway of last resort is 192.168.89.8 to network 192.168.8.0

 

C    192.168.89.0/24 is directly connected, Serial0/1

D*   192.168.8.0/24 [90/2297856] via 192.168.89.8, 01:04:43, Serial0/1

     172.16.0.0/24 is subnetted, 3 subnets

C       172.16.1.0 is directly connected, Loopback1

C       172.16.2.0 is directly connected, Loopback2

C       172.16.3.0 is directly connected, Loopback3

     9.0.0.0/24 is subnetted, 1 subnets

C       9.9.9.0 is directly connected, Loopback0

 

查看R7的路由表如下:

Gateway of last resort is 192.168.47.4 to network 0.0.0.0

 

C    192.168.47.0/24 is directly connected, Serial0/0

     7.0.0.0/24 is subnetted, 1 subnets

C       7.7.7.0 is directly connected, Loopback0

R*   0.0.0.0/0 [120/1] via 192.168.47.4, 00:00:22, Serial0/0

 

 

查看R2LSDB如下:

R2#sh ip ospf da

 

            OSPF Router with ID (2.2.2.2) (Process ID 10)

 

                Router Link States (Area 0)

 

Link ID         ADV Router      Age         Seq#       Checksum Link count

1.1.1.1         1.1.1.1         1109        0x80000006 0x00AFDD 3

2.2.2.2         2.2.2.2         1071        0x80000004 0x006D31 4

3.3.3.3         3.3.3.3         30          0x80000006 0x002AF4 2

4.4.4.4         4.4.4.4         520         0x80000007 0x0021EC 2

 

                Net Link States (Area 0)

 

Link ID         ADV Router      Age         Seq#       Checksum

192.168.1.2     2.2.2.2         1071        0x80000004 0x007822

 

                Summary Net Link States (Area 0)

 

Link ID         ADV Router      Age         Seq#       Checksum

5.5.5.5         1.1.1.1         1109        0x80000003 0x000DD4

6.6.6.6         4.4.4.4         1024        0x80000003 0x00844D

8.8.8.8         1.1.1.1         862         0x80000003 0x000590

172.5.1.0       1.1.1.1         60          0x80000001 0x00EB59

172.5.2.0       1.1.1.1         60          0x80000001 0x00E063

172.5.3.0       1.1.1.1         61          0x80000001 0x00D56D

192.168.15.0    1.1.1.1         1110        0x80000003 0x0092EB

192.168.46.0    4.4.4.4         1025        0x80000003 0x00E171

192.168.58.0    1.1.1.1         1110        0x80000003 0x003AD8

 

                Summary ASB Link States (Area 0)

 

Link ID         ADV Router      Age         Seq#       Checksum

8.8.8.8         1.1.1.1         863         0x80000003 0x00ECA8

 

                Type-5 AS External Link States

 

Link ID         ADV Router      Age         Seq#       Checksum Tag

7.7.7.0         4.4.4.4         520         0x80000003 0x00EA0F 0

9.9.9.0         8.8.8.8         881         0x80000003 0x002AB9 0

172.16.1.0      8.8.8.8         1885        0x80000002 0x00E061 0

172.16.2.0      8.8.8.8         1644        0x80000002 0x00D56B 0

172.16.3.0      8.8.8.8         1644        0x80000002 0x00CA75 0

192.168.8.0     8.8.8.8         881         0x80000003 0x006528 0

192.168.47.0    4.4.4.4         520         0x80000003 0x002F47 0

192.168.89.0    8.8.8.8         881         0x80000003 0x00E655 0

 

剩余部分见(二)