MGRE综合实验

一、配置ip

 [r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.1.1 24
[r1-GigabitEthernet0/0/0]q
[r1]int s4/0/0
[r1-Serial4/0/0]ip add 15.0.0.1 8
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 192.168.2.1 24
[r2-GigabitEthernet0/0/0]q
[r2]int s4/0/0
[r2-Serial4/0/0]ip add 25.0.0.1 8
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 192.168.3.1 24
[r3-GigabitEthernet0/0/0]q
[r3]int s4/0/0
[r3-Serial4/0/0]ip add 35.0.0.1 8
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip add 192.168.4.1 24 
[r4-GigabitEthernet0/0/0]q
[r4]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 45.0.0.1 8
[ISP-Serial3/0/0]ip add 15.0.0.2 8
[ISP-Serial3/0/1]ip add 25.0.0.2 8
[ISP-Serial4/0/0]ip add 35.0.0.2 8
[ISP-GigabitEthernet0/0/0]ip add 45.0.0.2 8
[ISP-LoopBack0]ip add 5.5.5.5 24

配置缺省路由

r1]ip route-static 0.0.0.0 0 15.0.0.2

[r2]ip route-static 0.0.0.0 0 25.0.0.2

[r3]ip route-static 0.0.0.0 0 35.0.0.2

[r4]ip route-static 0.0.0.0 0 45.0.0.2

R1和 R5间使用ppp的pap认证，R5为主认证方

R1和 R5间使用ppp的pap认证，R5为主认证方

 

R3于R5之间使用HDLC封装

[r3]int s4/0/0
[r3-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y
[ISP]int s4/0/0   
[ISP-Serial4/0/0]link-protocol hdlc 
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y

R1/R2/R3构建一个MGRE环境，R1为中心站点

中心：

[r2]int t 0/0/0
[r2-Tunnel0/0/0]ip add 192.168.5.2 24
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp
[r2-Tunnel0/0/0]source serial 4/0/0
[r2-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register 

[r3]int t 0/0/0
[r3-Tunnel0/0/0]ip add 192.168.5.3 24 
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source Serial 4/0/0
[r3-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register 

R1,R4间为点到点的GRE 

[r1]interface tunnel 0/0/1
[r1-Tunnel0/0/1]ip address 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]destination 45.0.0.2

[r4]interface tunnel 0/0/1
[r4-Tunnel0/0/1]ip address 192.168.6.2 24
[r4-Tunnel0/0/1]tunnel-protocol gre
[r4-Tunnel0/0/1]source 45.0.0.2
[r4-Tunnel0/0/1]destination 15.0.0.1

整个私有网络基于RIP全网可达

[r1]rip 1
[r1-rip-1]version 2
[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]rip 1
[r2-rip-1]version 2
[r2-rip-1]network 192.168.2.0
[r2-rip-1]network 192.168.5.0

[r3]rip 1
[r3-rip-1]version 2
[r3-rip-1]network 192.168.3.0
[r3-rip-1]network 192.168.5.0

[r4]rip 1
[r4-rip-1]version 2
[r4-rip-1]network 192.168.6.0
[r4-rip-1]network 192.168.4.0

[r1-Tunnel0/0/0]nhrp entry multicast dynamic

[r1-Tunnel0/0/0]undo rip split-horizon 

9、所有PC设置私有IP为源IP，可以访问R5环回

[r1]acl 2000
[r1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[r1-acl-basic-2000]q
[r1]int s4/0/0
[r1-Serial4/0/0]nat outbound 2000

[r2]acl 2000
[r2-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[r2-acl-basic-2000]q
[r2]int s4/0/0
[r2-Serial4/0/0]nat outbound 2000

[r3]acl 2000
[r3-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[r3-acl-basic-2000]q
[r3]int s4/0/0
[r3-Serial4/0/0]nat outbound 2000

[r4]acl 2000
[r4-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[r4-acl-basic-2000]q
[r4]int g0/0/1 
[r4-GigabitEthernet0/0/1]nat outbound 2000

给PC配置

结果