一、实验要求

1.R5为ISP，只能进行IP地址配置；其所有地址均为公有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.整个私有网络基于RIP全网可达
5.所有PC设置私有IP为源IP，可以访问R5环回

二、实验拓扑图

三、实验配置

R1和R5间使用PPP的PAP认证，R5为主认证方

R5——ISP配置

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys ISP
[ISP]aaa
[ISP-aaa]local-user huazhu password cipher 123456
Info: Add a new user.
[ISP-aaa]local-user huazhu service-type ppp
[ISP-aaa]q
[ISP]interface Serial 3/0/0
[ISP-Serial3/0/0]link-protocol ppp
[ISP-Serial3/0/0]ppp authentication-mode pap
[ISP-Serial3/0/0]ip address 15.0.0.2 24

R1配置

[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ip address 192.168.1.1 24
Oct 30 2023 18:56:37-08:00 R1 %%01IFNET/4/LINK_STATE(l)[32]:The line protocol IP
 on the interface GigabitEthernet0/0/0 has entered the UP state. 

[R1]interface Serial 4/0/0
[R1-Serial4/0/0]link-protocol ppp
[R1-Serial4/0/0]ip address 15.0.0.1 24
[R1-Serial4/0/0]ppp pap local-user huazhu password cipher 123456

R2与R5之间使用PPP的chap认证，R5为主认证方

R5——ISP配置

[ISP]interface Serial 3/0/1
[ISP-Serial3/0/1]ip address 25.0.0.2 24
[ISP-Serial3/0/1]ppp authentication-mode chap

R2配置

[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]ip address 192.168.2.1 24
Oct 30 2023 19:03:24-08:00 R2 %%01IFNET/4/LINK_STATE(l)[4]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R2]interface Serial 4/0/0
[R2-Serial4/0/0]ip address 25.0.0.1 24
[R2-Serial4/0/0]ppp chap user huazhu
[R2-Serial4/0/0]ppp chap password cipher 123456

R3与R5之间使用HDLC封装。

R5——ISP配置

[ISP]interface Serial 4/0/0
[ISP-Serial4/0/0]ip address 35.0.0.2 24
[ISP-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
Oct 30 2023 19:10:55-08:00 ISP %%01IFNET/4/CHANGE_ENCAP(l)[3]:The user performed
 the configuration that will change the encapsulation protocol of the link and t
hen selected Y.

R3配置

[R3-GigabitEthernet0/0/0]ip address 192.168.3.1 24
Oct 30 2023 19:13:24-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R3]interface Serial 4/0/0
[R3-Serial4/0/0]ip address 35.0.0.1 24
[R3-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]
:y
Oct 30 2023 19:16:05-08:00 R3 %%01IFNET/4/CHANGE_ENCAP(l)[1]:The user performed 
the configuration that will change the encapsulation protocol of the link and th
en selected Y.

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。

R1配置

[R1]ip route-static 0.0.0.0 0 15.0.0.2
[R1]interface Tunnel 0/0/0
[R1-Tunnel0/0/0]ip address 192.168.5.1 24
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp
[R1-Tunnel0/0/0]source 15.0.0.1
Oct 30 2023 19:34:51-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state.
[R1-Tunnel0/0/0]nhrp network-id 50


[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 45.0.0.1
Oct 30 2023 19:54:26-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/1 has entered the UP state. 

R2配置

[R2]ip route-static 0.0.0.0 0 25.0.0.2
[R2]interface Tunnel 0/0/0
[R2-Tunnel0/0/0]ip add	
[R2-Tunnel0/0/0]ip address 192.168.5.2 24
[R2-Tunnel0/0/0]tunnel-protocol gre p2mp
[R2-Tunnel0/0/0]source Serial 4/0/0
Oct 30 2023 19:38:38-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state. 
[R2-Tunnel0/0/0]nhrp network-id 50
[R2-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register 

R3配置

[R3]ip route-static 0.0.0.0 0 35.0.0.2
[R3]interface Tunnel 0/0/0
[R3-Tunnel0/0/0]ip address 192.168.5.3 24
[R3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R3-Tunnel0/0/0]nhrp network-id 50
[R3-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 r	
[R3-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register

R4配置

[R4]ip route-static 0.0.0.0 0 45.0.0.2
[R4]interface Tunnel 0/0/0
[R4-Tunnel0/0/0]ip address 192.168.6.2 24
[R4-Tunnel0/0/0]tunnel-protocol gre
[R4-Tunnel0/0/0]source 45.0.0.1
[R4-Tunnel0/0/0]destination 15.0.0.1
Oct 30 2023 19:56:23-08:00 R4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface Tunnel0/0/0 has entered the UP state.

整个私有网络基于RIP全网可达

R1配置

[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

[R1-Tunnel0/0/0]nhrp entry multicast dynamic
[R1-Tunnel0/0/0]undo rip split-horizon

R2配置

[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配置

[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配置

[R4]rip 1
[R4-rip-1]version 2
[R4-rip-1]network 192.168.4.0
[R4-rip-1]network 192.168.6.0

所有PC设置私有IP为源IP，可以访问R5环回

R5配置

[ISP]interface LoopBack 0
[ISP-LoopBack0]ip address 100.100.100.100 24

R1配置

[R1]acl 2000
[R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R1]interface Serial 4/0/0
[R1-Serial4/0/0]nat outbound 2000