MGRE实验

 1.对r1、r2、r3、r4、r5进行配置。

r1：

r2： 

 r3：

r4： 

 r5：

[ISP]int s3/0/0
[ISP-Serial3/0/0]ip add 15.0.0.2 24

[ISP]int s3/0/1
[ISP-Serial3/0/1]ip add 25.0.0.2 24
[ISP]int s4/0/0

[ISP-Serial4/0/0]ip add 35.0.0.2 24
[ISP]int g0/0/0

ip add  45.0.0.1 24

[ISP-GigabitEthernet0/0/0]ip add  45.0.0.1 24

[ISP]int l0
[ISP-LoopBack0]ip add 5.5.5.5 24

 2、给所有边界设备配置缺省 --- 此时所有设备均可ping通

[r1]ip route-static 0.0.0.0 0 15.0.0.2
[r2]ip route-static 0.0.0.0 0 25.0.0.1
[r3]ip route-static 0.0.0.0 0 35.0.0.2

[r4]ip route-static 0.0.0.0 0 45.0.0.1

r5不用配

 3、R1-5 PAP R2-5 PPP CHAP R3-5 HDLC封装  R5均为主

r1-5

r1本就是ppp所以直接认证

r5：[ISP-aaa]local-user admin pas    
[ISP-aaa]local-user admin password c    
[ISP-aaa]local-user admin password cipher 123456

[ISP-Serial3/0/0]ppp authentication-mode pap

r1：[r1-Serial4/0/0]ppp pap local-user admin password cipher 123456

r2-5

r5在上一步已经进行了aaa认证，所以这里就不用在配置了。

[ISP-Serial3/0/1]ppp authentication-mode chap

[r2-Serial4/0/0]ppp chap password cipher 123456
r3-5

r5【ISP-Serial4/0/0]link-protocol hdlc -----选择协议

r3 [r3-Serial4/0/0]link-protocol hdlc ------一个换都要换

 4、R1-2-3搭建一个MGRE，R1为中心

r1

[r1]interface Tunnel 0/0/0---创造端口

[r1-Tunnel0/0/0]ip add 192.168.5.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp---定义封装类型

[r1-Tunnel0/0/0]source 15.0.0.1
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]nhrp entry multicast dynamic ----开启伪广播

r2

[r2]int t 0/0/0---创造端口
[r2-Tunnel0/0/0]ip add 192.168.5.2 24

[r2-Tunnel0/0/0]tunnel-protocol gre p2mp---定义封装类型

[r2-Tunnel0/0/0]source s4/0/0

[r2-Tunnel0/0/0]nhrp network-id 100

[r2-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register---分支找中心 

r3

[r3]int t0/0/0
[r3-Tunnel0/0/0]ip add 192.168.5.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp

[r3-Tunnel0/0/0]source s4/0/0
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register

R1-R4为点到点GRE

r1：

[r1]int t0/0/1
[r1-Tunnel0/0/1]ip add 192.168.6.1 24
[r1-Tunnel0/0/1]tunnel-protocol gre

[r1-Tunnel0/0/1]source 15.0.0.1

[r1-Tunnel0/0/1]description 45.0.0.2

r4：

[r4]int t0/0/0

[r4-Tunnel0/0/0]ip add 192.168.6.2 24

[r4-Tunnel0/0/0]tunnel-protocol gre 

[r4-Tunnel0/0/0]source 45.0.0.2

[r4-Tunnel0/0/0]description 15.0.0.1

 4、rip全网可达

rip

R1

[r1-rip-1]network 192.168.1.0

[r1-rip-1]network 192.168.5.0
[r1-rip-1]network 192.168.6.0

R2

[r2-rip-1]network 192.168.2.0

[r2-rip-1]network 192.168.5.0

R3

[r3]rip

[r3-rip-1]network 192.168.3.0

[r3-rip-1]network 192.168.5.0

R4

[r4-rip-1]network 192.168.4.0
[r4-rip-1]network 192.168.6.0

在R1中输入[r1-Tunnel0/0/0]undo rip split-horizon