实验环境：4台路由器，三台主机，ip为top中分配的。
实验概要：在网络中运行了不同的路由协议，那么两个运行了不同的路由协议的路由器是不能够交换路由表的，这样网络中的每一个路由器都不能拥有整个网络的路由路径，所以这里我们就用到了路由重发布技术。
router0的配置好下：
Router#show running-config
Building configuration...
Current configuration : 1003 bytes
!
version 12.2
no service password-encryption
!
hostname Router
!
!
!
!
!
ip ssh version 1
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial1/0
ip address 11.0.0.1 255.255.255.252
clock rate 64000 ＃＃＃ 在dce设备上封装时钟频率
interface Serial1/1
ip address 10.0.0.2 255.255.255.252
clock rate 64000
!
interface Serial1/2
ip address 12.0.0.1 255.255.255.252
clock rate 64000
!
interface Serial1/3
no ip address
shutdown
!
router eigrp 10
redistribute rip metric 1544 5 255 1 1500
redistribute ospf 11 metric 1544 5 255 1 1500
network 10.0.0.0 0.0.0.3
no auto-summary
!
router ospf 11 ＃＃＃＃＃＃＃＃在发布为ospf时不配置metric
log-adjacency-changes
redistribute rip subnets
redistribute eigrp 10 subnets
network 11.0.0.0 0.0.0.3 area 0
!
router rip
version 2
redistribute eigrp 10 metric 2
redistribute ospf 11 metric 3
network 12.0.0.0
no auto-summary ＃＃＃＃＃＃＃＃不要忘了这个命令，取消自动汇总
ip classless
!
!
!
!
!
line con 0
line vty 0 4
login
!
!
end
在router2路由器上要配置的就是让直连的两个网络运行在eigrp 10 上，并对相应的串口和以太网口配置ip地址。部分配置好下：
＃interface FastEthernet0/0
＃ip address 192.168.0.1 255.255.255.0
＃interface Serial1/1
＃ip address 10.0.0.1 255.255.255.252
＃router eigrp 10
＃network 192.168.0.0
＃network 10.0.0.0 0.0.0.3
＃no auto-summary
router1路由器的部分配置好下：
＃interface FastEthernet0/0
＃ip address 13.155.0.1 255.255.255.192
＃interface Serial1/2
＃ip address 12.0.0.2 255.255.255.252
＃router rip
＃version 2
＃network 12.0.0.0
＃network 13.0.0.0
＃no auto-summary
router3的配置好下：
＃interface FastEthernet0/0
＃ip address 172.16.0.1 255.255.255.0
＃interface Serial1/0
＃ip address 11.0.0.2 255.255.255.252
#outer ospf 11
#etwork 11.0.0.0 0.0.0.3 area 0
#etwork 172.16.0.0 0.0.0.255 area 0
接下来我们可以通过对各个路由器的路由表进行查看，下面是router2的路由表，我们可以清楚的看到它已经了解了整个网络了。
Gateway of last resort is not set
10.0.0.0/30 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial1/1
12.0.0.0/30 is subnetted, 1 subnets
D EX 12.0.0.0 [170/20513280] via 10.0.0.2, 01:03:24, Serial1/1
13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D EX 13.0.0.0/8 [170/20513280] via 10.0.0.2, 00:54:18, Serial1/1
D EX 13.155.0.0/26 [170/20513280] via 10.0.0.2, 00:00:25, Serial1/1
172.16.0.0/24 is subnetted, 1 subnets
D EX 172.16.0.0 [170/20513280] via 10.0.0.2, 01:03:05, Serial1/1
C 192.168.0.0/24 is directly connected, FastEthernet0/0
实验最后在各个主机之间进行ping命令测试就行了：
pc0－－－ping－－－pc1
PC>ping 172.16.0.2
Pinging 172.16.0.2 with 32 bytes of data:
Reply from 172.16.0.2: bytes=32 time=125ms TTL=125
Reply from 172.16.0.2: bytes=32 time=111ms TTL=125
Reply from 172.16.0.2: bytes=32 time=125ms TTL=125
Reply from 172.16.0.2: bytes=32 time=125ms TTL=125
Ping statistics for 172.16.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 111ms, Maximum = 125ms, Average = 121ms
pc0－－ping－－pc2
PC>ping 192.168.0.2
Pinging 192.168.0.2 with 32 bytes of data:
Reply from 192.168.0.2: bytes=32 time=156ms TTL=125
Reply from 192.168.0.2: bytes=32 time=109ms TTL=125
Reply from 192.168.0.2: bytes=32 time=109ms TTL=125
Reply from 192.168.0.2: bytes=32 time=125ms TTL=125
Ping statistics for 192.168.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 109ms, Maximum = 156ms, Average = 124ms
看看，实验成功了。。我在做的时候也出现了这样那样的问题，最后还是做成功了，坚持，仔细就是成功！！！！！！！
本文出自 “
一生学习！” 博客，出处
http://sky551.blog.51cto.com/368705/106399
