一、基本配置
1.构建网络拓扑结构图
2.路由器基本配置
3.配置PC
4.测试连通性
5.保存配置文件
二、配置EIGRP
1.查看路由表
2.配置EIGRP动态路由
3.查看路由器路由表
4.测试网络连通性
5.查看所有路由器的路由协议
6.保存配置文件
三、配置OSPF
1.配置路由器ID
2.配置OSPF
3.查看路由信息
4.关闭EIGRP
5.检查路由表并测试网络连通性
6.保存配置
7.测试到各个网络的连通性
RA#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RA(config)#interface f0/0
RA(config-if)#ip add 172.16.199.1 255.255.255.128
RA(config-if)#no shut
RA(config-if)#interface s0/0
RA(config-if)#ip add 172.16.199.225 255.255.255.252
RA(config-if)#clock rate 2000000
RA(config-if)#no shut
RC#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RC(config)#interface f0/0
RC(config-if)#ip add 172.16.199.129 255.255.255.192
RC(config-if)#no shut
RC(config-if)#int s0/0
RC(config-if)#ip add 172.16.199.230 255.255.255.252
RC(config-if)#no shut
RB#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RB(config)#int f0/0
RB(config-if)#ip add 172.16.199.193 255.255.255.224
RB(config-if)#no shut
RB(config-if)#int s0/0
RB(config-if)#ip add 172.16.199.226 255.255.255.252
RB(config-if)#no shut
RB(config-if)#int s0/1
RB(config-if)#ip add 172.16.199.229 255.255.255.252
RB(config-if)#no shut
RA ping PCA 和RB
RB ping PCB、RA 和 RC
RC ping PCC 和 RB
RA#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
RB#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
RC#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
show ip route
# 在RA上配置EIGRP
RA(config)#router eigrp 333 #启动EIGRP进行
RA(config-router)#no auto-summary #取消自动汇总
RA(config-router)#network 172.16.0.0 #通告网络
RA(config-router)#passive-interface f0/0 #被动接口
RB(config)#router eigrp 333
RB(config-router)#no auto-summary
RB(config-router)#network 172.16.0.0
RB(config-router)#
%DUAL-5-NBRCHANGE: IP-EIGRP 333: Neighbor 172.16.199.225 (Serial0/0) is up: new adjacency
RB(config-router)#passive-interface f0/0
RB(config-router)#end
RC(config)#router eigrp 333
RC(config-router)#no auto-summary
RC(config-router)#network 172.16.0.0
RC(config-router)#
%DUAL-5-NBRCHANGE: IP-EIGRP 333: Neighbor 172.16.199.229 (Serial0/0) is up: new adjacency
RC(config-router)#passive-interface f0/0
show ip route
在各个路由器测试到各个PC机的连通性
RA到PCA、PCB 和 PCC
RB到PCA、PCB 和 PCC
RC到PCA、PCB 和 PCC
show ip protocols
RA#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
RB#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
RC#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
为了使OSPF易于识别路由器而使网络管理和故障排除更加容易,利用Loopback接口设置路由器的ID; 在各路由器配置OSPF动态路由; 再检查路由信息,并与之前做比较; 测试和检验网络连通性。 注:反掩码用255.255.255.255减去子网掩码获得。
RA#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RA(config)#int loopback 0
RA(config-if)#
%LINK-5-CHANGED: Interface Loopback0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
RA(config-if)#ip add 10.199.1.1 255.255.255.255
RA(config-if)#exit
RB#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RB(config)#int loopback 0
RB(config-if)#
%LINK-5-CHANGED: Interface Loopback0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
RB(config-if)#ip add 10.199.2.2 255.255.255.255
RB(config-if)#exit
RC#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RC(config)#int loopback 0
RC(config-if)#
%LINK-5-CHANGED: Interface Loopback0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
RC(config-if)#ip add 10.199.3.3 255.255.255.255
RC(config-if)#exit
RA(config)#router ospf 100
RA(config-router)#network 172.16.199.0 0.0.0.127 area 0
RA(config-router)#network 172.16.199.224 0.0.0.3 area 0
RA(config-router)#end
RB(config)#router ospf 200
RB(config-router)#network 172.16.199.192 0.0.0.31 area 0
RB(config-router)#network 172.16.199.224 0.0.0.3 area 0
RB(config-router)#end
RC(config)#router ospf 300
RC(config-router)#network 172.16.199.128 0.0.0.63 area 0
RC(config-router)#network 172.16.199.228 0.0.0.3 area 0
RC(config-router)#end
show ip route
起作用的仍为EIGRP动态路由
此时EIGRP和OSPF同时进行,因为他们的管理距离分别是90和110,所以EIGRP优先起作用。查看路由表可以验证。为了使OSPF起作用,必须关闭EIGRP。然后检查路由表,并与之前做比较。
RA(config)#no route eigrp 333
RB(config)#no route eigrp 333
RC(config)#no route eigrp 333
show ip route
show ip protocols
RA到PCA
RB到PCB
RC到PCC