Catalog

1.IP Address planning

2. Topology construction

3.IP Address configuration

4.R1 and R2 Between HDLC encapsulation

5.R2 and R3 Between PPP encapsulation ,pap authentication ;R2 and R4 Between chap authentication

6.R1、R3、R4 structure MGRE Environmental Science

7. Use dynamic routing protocol RIP

8. test — The whole network can reach

The experimental requirements

1.IP Address planning

AR1 To AR2 The network segment between is 12.1.1.0/24

AR2 To AR3 The network segment between is 12.1.2.0/24

AR2 To AR3 The network segment between is 12.1.3.0/24

AR2 The loopback network segment on is 1.1.1.1/24

R1、R2、R3 structure MGRE, The network segment used is 10.1.1.0/24

2. Topology construction

3.IP Address configuration

AR1 The code for is as follows ：

[r1]interface g0/0/0
[r1-GigabitEthernet0/0/0]ip address 192.168.1.1 24
[r1-GigabitEthernet0/0/0]q
[r1]interface s4/0/0
[r1-Serial4/0/0]ip address 12.1.1.1 24
[r1-Serial4/0/0]q

AR2 The code for is as follows ：

[ISP]interface Serial 4/0/0
[ISP-Serial4/0/0]ip address 12.1.1.2 24 
[ISP-Serial4/0/0]interface Serial 3/0/0
[ISP-Serial3/0/0]ip address 12.1.2.1 24
[ISP-Serial3/0/0]interface Serial 3/0/1
[ISP-Serial3/0/1]ip address 12.1.3.1 24
[ISP-Serial3/0/1]q
[ISP]interface LoopBack 0
[ISP-LoopBack0]ip address 1.1.1.1 24
[ISP-LoopBack0]q

AR3 The code for is as follows ：

[r3]interface Serial 4/0/0 
[r3-Serial4/0/0]ip address 12.1.2.2 24 
[r3-Serial4/0/0]q              
[r3]interface g0/0/0 
[r3-GigabitEthernet0/0/0]ip address 192.168.2.1 24

AR4 The code for is as follows ：

[r4]interface g0/0/0
[r4-GigabitEthernet0/0/0]ip address 192.168.3.1 24
[r4-GigabitEthernet0/0/0]q
[r4]interface s4/0/0       
[r4-Serial4/0/0]ip address 12.1.3.2 24
[r4-Serial4/0/0]q

4.R1 and R2 Between HDLC encapsulation

AR1 and AR2 The code is as follows ：

[r1]interface Serial 4/0/0
[r1-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y

[ISP]interface Serial 4/0/0    
[ISP-Serial4/0/0]link-protocol hdlc
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y

5.R2 and R3 Between PPP encapsulation ,pap authentication ;R2 and R4 Between chap authentication

R2 The code for is as follows ：

[ISP]aaa
[ISP-aaa]local-user tengxun password cipher 666666
[ISP-aaa]local-user tengxun service-type ppp
[ISP-aaa]int
[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]q          
[ISP]interface Serial 3/0/1
[ISP-Serial3/0/1]link-protocol ppp
[ISP-Serial3/0/1]ppp authentication-mode chap
[ISP-Serial3/0/1]q

R3、R4 The code for is as follows ：

[r3]interface Serial 4/0/0
[r3-Serial4/0/0]link-protocol ppp
[r3-Serial4/0/0]ppp pap local-user tengxun password cipher 666666
[r3-Serial4/0/0]q

[r4]interface Serial 4/0/0
[r4-Serial4/0/0]link-protocol ppp
[r4-Serial4/0/0]ppp chap user tengxun
[r4-Serial4/0/0]ppp chap password cipher 666666
[r4-Serial4/0/0]q

6.R1、R3、R4 structure MGRE Environmental Science

R1、R3、R4 Configure the default route and nat authentication , The code is as follows ：

[r1]ip route-static 0.0.0.0 0 12.1.1.2
[r1]acl 2000
[r1-acl-basic-2000]rule 1 permit source any 
[r1-acl-basic-2000]q
[r1]interface s4/0/0
[r1-Serial4/0/0]nat outbound 2000
[r1-Serial4/0/0]q

[r3]ip route-static 0.0.0.0 0 12.1.2.1
[r3]acl 2000
[r3-acl-basic-2000]rule 1 permit source any 
[r3-acl-basic-2000]q 
[r3]interface s4/0/0
[r3-Serial4/0/0]nat outbound 2000
[r3-Serial4/0/0]q

[r4]ip route-static 0.0.0.0 0 12.1.3.1
[r4]acl 2000
[r4-acl-basic-2000]rule 1 permit source any 
[r4-acl-basic-2000]q
[r4]interface s4/0/0
[r4-Serial4/0/0]nat outbound 2000
[r4-Serial4/0/0]q

take R1 Set as the central site

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 10.1.1.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r1-Tunnel0/0/0]source 12.1.1.1
[r1-Tunnel0/0/0]nhrp entry multicast dynamic 
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]q

The branch site is R3 and R4

[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip address 10.1.1.2 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source s4/0/0
[r3-Tunnel0/0/0]nhrp entry 10.1.1.1 12.1.1.1 register 
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]q

[r4]interface Tunnel 0/0/0
[r4-Tunnel0/0/0]ip address 10.1.1.3 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp
[r4-Tunnel0/0/0]source s4/0/0
[r4-Tunnel0/0/0]nhrp entry 10.1.1.1 12.1.1.1 register 
[r4-Tunnel0/0/0]nhrp network-id 100
[r4-Tunnel0/0/0]q

7. Use dynamic routing protocol RIP

AR1、AR3、AR4 The code for is as follows ：

[r1]rip 1        
[r1-rip-1]version 2
[r1-rip-1]network 10.0.0.0
[r1-rip-1]network 192.168.1.0
[r1-rip-1]q

[r3]rip 1
[r3-rip-1]version 2
[r3-rip-1]network 10.0.0.0
[r3-rip-1]network 192.168.2.0
[r3-rip-1]q

[r4]rip 1
[r4-rip-1]version 2
[r4-rip-1]network 10.0.0.0
[r4-rip-1]network 192.168.3.0
[r4-rip-1]q

R3 and R4 The routing table of is incomplete

close RIP The horizontal division of

[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]undo rip split-horizon
[r1-Tunnel0/0/0]q

Get the complete routing table after closing

8. test — The whole network can reach

PC1   ping   R2 Loopback 、PC2 and PC3

PCpingPC3