一、实验拓扑图
二、实验要求
1.R5为ISP,只能进行IP地址配置,其所有地址均配为公有IP地址;
2.R1和R5间使用PPP的PAP认证,R5为主认证方:
R2与R5之间使用ppp的CHAP认证,
R5为主认证方;R3与R5之间使用HDLC封装;
3.R1、R2、R3构建一个MGRE环境,R1为中心站点,R1、R4间为点到点的GRE:
4.整个私有网路基于RIP全网可达;
5.所有PC设置私有IP为源IP,可以访问P5环回
三、实验步骤
1、配置IP地址
R1:
[R1]int g 0/0/0
[R1-GigabitEthernet0/0/0]ip add 192.168.1.254 24
[R1-GigabitEthernet0/0/0]int s 4/0/0
[R1-Serial4/0/0]ip add 15.1.1.1 24
R2:
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 192.168.2.254 24
R2-GigabitEthernet0/0/0]int s4/0/0
[R2-Serial4/0/0]ip add 25.1.1.2 24
R3:
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 192.168.3.254 24
[R3-GigabitEthernet0/0/0]int s4/0/0
[R3-Serial4/0/0]ip add 35.1.1.3 24
R4:
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 45.1.1.4 24
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 192.168.4.254 24
R5:
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 45.1.1.5 24
[R5-GigabitEthernet0/0/0]int s4/0/0
[R5-Serial4/0/0]ip add 35.1.1.5 24
[R5-Serial4/0/0]int s4/0/1
[R5-Serial4/0/1]ip add 15.1.1.5 24
[R5-Serial4/0/1]int s3/0/1
[R5-Serial3/0/1]ip add 25.1.1.5 24
[R5-Serial3/0/1]int L0
[R5-LoopBack0]ip add 5.5.5.5 24
2、配置公网通
R1:
[R1]ip route-st
[R1]ip route-static 0.0.0.0 0 15.1.1.5
R2:
[R2]ip route-st
[R2]ip route-static 0.0.0.0 0 25.1.1.5
R3:
[R3]ip route-st
[R3]ip route-static 0.0.0.0 0 35.1.1.5
R4:
[R4]ip route-st
[R4]ip route-static 0.0.0.0 0 45.1.1.5
3、R1和R5间使用PPP的PAP验证,R5为主认证方
R5:
[R5-aaa]loc
[R5-aaa]local-user laowang pas
[R5-aaa]local-user laowang password cipher 12345
Info: Add a new user.
[R5-aaa]loc
[R5-aaa]local-user laowang service-type ppp
[R5-aaa]int s4/0/1
[R5-Serial4/0/1]ppp authentication-mode pap
R1:
[R1]int s4/0/0
[R1-Serial4/0/0]ppp pap l
[R1-Serial4/0/0]ppp pap local-user laowang pass
[R1-Serial4/0/0]ppp pap local-user laowang password cipher 12345
4、R2与R5之间使用ppp的CHAP认证,R5为主认证方
R5:
[R5]aaa
[R5-aaa]loc
[R5-aaa]local-user laozhou pas
[R5-aaa]local-user laozhou password cipher 12345
Info: Add a new user.
[R5-aaa]local-user laozhou ser
[R5-aaa]local-user laozhou service-type ppp
[R5-aaa]int s3/0/1
[R5-Serial3/0/1]ppp au
[R5-Serial3/0/1]ppp authentication-mode chap
R2:
[R2]int s4/0/0
[R2-Serial4/0/0]ppp chap us
[R2-Serial4/0/0]ppp chap user laozhou
[R2-Serial4/0/0]ppp chap pass
[R2-Serial4/0/0]ppp chap password cipher 12345
5、R3与R5之间使用HDLC封装
R3:
[R3-Serial4/0/0]link-protocol hdlc
R5:
[R5-Serial4/0/0]link-protocol hdlc
6、R1、R2、R3构建一个MGRE环境,R1为中心站点
(1)配置R1,R2,R3之间的隧道--MGRE VPN:
R1:
[R1]int Tunnel 0/0/0
[R1-Tunnel0/0/0]ip add 10.1.2.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp
[R1-Tunnel0/0/0]source 15.1.1.1
R2:
[R2]int Tunnel 0/0/0
[R2-Tunnel0/0/0]ip add 10.1.2.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source Serial 4/0/0
R3:
[R3]int Tunnel 0/0/0
[R3-Tunnel0/0/0]ip add 10.1.2.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp
[R3-Tunnel0/0/0]source Serial 4/0/0
(2)中心站点配置(R1):
[R1-Tunnel0/0/0]
[R1-Tunnel0/0/0]nhrp net
[R1-Tunnel0/0/0]nhrp network-id 100
(3)分支站点配置:
R2:
[R2-Tunnel0/0/0]nhrp network-id 100
[R2-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
R3:
[R3-Tunnel0/0/0]nhrp network-id 100
[R3-Tunnel0/0/0]nhrp entry 10.1.2.1 15.1.1.1 register
测试:查看中心站点的NHRP表
7、R1、R4间为点到点的GRE
创建隧道--GRE
R1:
[R1]int Tunnel 0/0/1
[R1-Tunnel0/0/1]ip add 10.1.1.1 24
[R1-Tunnel0/0/1]tunnel-protocol gre
[R1-Tunnel0/0/1]source 15.1.1.1
[R1-Tunnel0/0/1]destination 45.1.1.4
R4:
[R4]int Tunnel 0/0/1
[R4-Tunnel0/0/1]ip add 10.1.1.4 24
[R4-Tunnel0/0/1]tunnel-protocol gre
[R4-Tunnel0/0/1]source 45.1.1.4
[R4-Tunnel0/0/1]destination 15.1.1.1
8、配置RIP使整个私有网络基于RIP全网可达
(1)MGRE环境:
R1:
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]undo summary
[R1-rip-1]network 10.0.0.0
[R1-rip-1]network 192.168.1.0
R2:
[R2]rip 1
[R2-rip-1]version 2
[R2-rip-1]undo summary
[R2-rip-1]network 10.0.0.0
[R2-rip-1]network 192.168.2.0
R3:
[R3]rip 1
[R3-rip-1]version 2
[R3-rip-1]undo summary
[R3-rip-1]network 10.0.0.0
[R3-rip-1]network 192.168.3.0
此时只有中心站点学习到了分支站点的网段:
解决方法:
在中心站点上开启伪广播:
[R1]int Tunnel 0/0/0
[R1-Tunnel0/0/0]nhrp entry multicast dynamic
此时仍没有获得完整网段,这跟RIP的水平分割机制有关
解决方法:关闭RIP的水平分割机制
[R1-Tunnel0/0/0]undo rip split-horizon
[R2-Tunnel0/0/0]undo rip split-horizon
[R3-Tunnel0/0/0]undo rip split-horizon
获取到完整路由表信息:
测试:
PC1 ping PC3
PC1 ping PC4
(2)GRE环境
R1:
[R1]rip 1
[R1-rip-1]version 2
[R1-rip-1]undo summary
[R1-rip-1]network 10.0.0.0
[R1-rip-1]network 192.168.1.0
R4:
[R4]rip 1
[R4-rip-1]version 2
[R4-rip-1]undo summary
[R4-rip-1]network 10.0.0.0
[R4-rip-1]network 192.168.4.0
测试:
PC1 ping PC2
9、所有PC设置私有IP为源IP,可以访问R5环回
配置Easy IP
R1:
[R1]acl 2000
[R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R1-acl-basic-2000]int s4/0/0
[R1-Serial4/0/0]nat outbound 2000
R2:
[R2]acl 2000
[R2-acl-basic-2000]rule permit source 192.168.2.0 0.0.0.255
[R2-acl-basic-2000]int s4/0/0
[R2-Serial4/0/0]nat outbound 2000
R3:
[R3]acl 2000
[R3-acl-basic-2000]rule permit source 192.168.3.0 0.0.0.255
[R3-acl-basic-2000]int s4/0/0
[R3-Serial4/0/0]nat outbound 2000
R4:
[R4]acl 2000
[R4-acl-basic-2000]rule permit source 192.168.4.0 0.0.0.255
[R4-acl-basic-2000]int g0/0/0
[R4-GigabitEthernet0/0/0]nat outbound 2000
测试:
PC1:
PC2:
PC3:
PC4: