Hcip mGRE comprehensive experiment

Experimental topics ：

Analysis focus ：

R1、R3、R4 It is equipped with RIP The protocol does not announce the network segment of the external network 
R1、R3、R4 All have to be configured NAT address translation 、
 Note that horizontal segmentation is turned off 

Topology ：

Configure the content ：

R1：

[Huawei]sysname r1
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.1.1 24
[r1-GigabitEthernet0/0/0]int s4/0/0
[r1-Serial4/0/0]ip add 12.1.1.1 24
[r1-Serial4/0/0]link-protocol hdlc
[r1-Serial4/0/0]q
[r1]ip route-static 0.0.0.0 0 12.1.1.2
[r1]int Tunnel 0/0/0
[r1-Tunnel0/0/0]ip add 1.1.1.1 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]rip 1 
[r1-rip-1]version 2
[r1-rip-1]network 1.0.0.0
[r1-rip-1]network 192.168.1.0
[r1-rip-1]q  
[r1]acl number 2000
[r1-acl-basic-2000]rule 5 permit 
[r1-acl-basic-2000]int s4/0/0
[r1-Serial4/0/0]nat outbound  2000
[r1-Serial4/0/0]int t0/0/0              
[r1-Tunnel0/0/0]undo rip split-horizon    // Turn off the horizontal division of the tunnel 

R2(ISP Operator, ):

[Huawei]sysname isp
[isp]int s3/0/0
[isp-Serial3/0/0]ip add 12.1.1.2 24
[isp-Serial3/0/0]int s3/0/1
[isp-Serial3/0/1]ip add 23.1.1.2 24
[isp-Serial3/0/1]int s4/0/0  
[isp-Serial4/0/0]ip add 24.1.1.2 24
[isp-Serial4/0/0]int loo 0
[isp-LoopBack0]ip add 2.2.2.2 24
[isp-LoopBack0]int s3/0/0
[isp-Serial3/0/0]link-protocol hdlc
[isp-Serial3/0/0]aaa
[isp-aaa]local-user huawei password cipher huawei
Info: Add a new user.               
[isp-aaa]local-user huawei service-type ppp
[isp-aaa]int s3/0/1
[isp-Serial3/0/1]link-protocol ppp
[isp-Serial3/0/1]ppp authentication-mode pap
[isp-Serial3/0/1]int s4/0/0
[isp-Serial4/0/0]link-protocol ppp
[isp-Serial4/0/0]ppp authentication-mode chap

R3:

[Huawei]sysname r3
[r3]int g0/0/1 
[r3-GigabitEthernet0/0/1]ip add 192.168.2.1 24
[r3-GigabitEthernet0/0/1]int s4/0/0
[r3-Serial4/0/0]ip add 23.1.1.3 24
[r3-Serial4/0/0]int s4/0/0
[r3-Serial4/0/0]link-protocol ppp
[r3-Serial4/0/0]ppp pap local-user huawei password cipher huawei
[r3-Serial4/0/0]q
[r3]ip route-static 0.0.0.0 0 23.1.1.2
[r3]int Tunnel 0/0/0
[r3-Tunnel0/0/0]ip add 1.1.1.2 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r3-Tunnel0/0/0]source s4/0/0
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]nhrp entry 1.1.1.1 12.1.1.1 register 
[r3-Tunnel0/0/0]q
[r3]rip 1 
[r3-rip-1]version 2
[r3-rip-1]network 1.0.0.0
[r3-rip-1]network 192.168.2.0
[r3-rip-1]q    
[r3]acl number 2000
[r3-acl-basic-2000]rule 5 permit 
[r3-acl-basic-2000]int s4/0/0
[r3-Serial4/0/0]nat outbound 2000

R4:

[Huawei]sysname r4
[r4]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 192.168.3.1 24
[r4-GigabitEthernet0/0/1]int s4/0/0
[r4-Serial4/0/0]ip add 24.1.1.4 24
[r4-Serial4/0/0]int s4/0/0
[r4-Serial4/0/0]link-protocol ppp
[r4-Serial4/0/0]ppp chap user huawei
[r4-Serial4/0/0]ppp chap password cipher huawei
[r4-Serial4/0/0]q
[r4]ip route-static 0.0.0.0 0 24.1.1.2
[r4]int Tunnel 0/0/0
[r4-Tunnel0/0/0]ip add 1.1.1.3 24
[r4-Tunnel0/0/0]tunnel-protocol gre p2mp 
[r4-Tunnel0/0/0]source S4/0/0 
[r4-Tunnel0/0/0]nhrp network-id 100
[r4-Tunnel0/0/0]nhrp entry 1.1.1.1 12.1.1.1 register 
[r4-Tunnel0/0/0]q
[r4]rip 1       
[r4-rip-1]version 2
[r4-rip-1]network 1.0.0.0
[r4-rip-1]network 192.168.3.0
[r4-rip-1]q    
[r4]acl number 2000
[r4-acl-basic-2000]int s4/0/0
[r4-Serial4/0/0]nat outbound  2000

Experimental verification ：

 R1   

 R3

R4

pc Configuration diagram （pc1、pc2、pc3）

 pc1  , respectively, ping ISP The loopback of 、pc2、pc3