MGRE, PPP, HDLC comprehensive experiment

Experimental content ：

experimental analysis ：

IP Address planning

R1-R4 14.1.1.0/24

R2-R4  24.1.1.0/24

R3-R4 34.1.1.0/24

PC1 Network segment ：192.168.1.0/24

PC2 Network segment ：192.168.2.0/24

PC3 Network segment ：192.168..3.0/24

Tunnel ：10.1.1.0/24 

  Topology construction

  Experimental process ：

Configure each router （ With R4 For example ）

[r4]inter s4/0/0
[r4-Serial4/0/0]IP add 14.1.1.2 24

Public network routing

With r1 For example ,r2\r3 The same operation , It's just that the next jump is different

[r1]ip route-static 0.0.0.0 0 14.1.1.2

  Private network routing

To configure MGRE Environmental Science （ Remember that after the tunnel entrance is established , It is necessary to consider the origin to determine whether the flow is based on tunnel Interface transmission ）

 R1-- center

[r1]inter t0/0/0
[r1-Tunnel0/0/0]ip add 10.1.1.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp    Define point to multipoint gre Pattern 
[r1-Tunnel0/0/0]source 14.1.1.1    The head of the flow tunnel should be divided into public IP
[r1-Tunnel0/0/0]nhrp entry multicast dynamic 
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]nhrp authentication cipher hcip   authentication 

R2-- Branch  

[r2]interface Tunnel 0/0/0
[r2-Tunnel0/0/0]ip address  10.1.1.2 24
[r2-Tunnel0/0/0]tunnel-protocol  gre   p2mp
[r2-Tunnel0/0/0]source  Serial   4/0/0
[r2-Tunnel0/0/0]nhrp entry 10.1.1.1 14.1.1.1  register          
[r2-Tunnel0/0/0]nhrp authentication cipher   hcip
[r2-Tunnel0/0/0]nhrp network-id  100

R3-- Branch

[r3]interface  Tunnel   0/0/0
[r3-Tunnel0/0/0]IP address    10.1.1.3
[r3-Tunnel0/0/0]IP address 10.1.1.3 24
[r3-Tunnel0/0/0]tunnel-protocol   gre   p2mp
[r3-Tunnel0/0/0]source    Serial   4/0/0
[r3-Tunnel0/0/0]nhrp entry  10.1.1.1  14.1.1.1  register
[r3-Tunnel0/0/0]nhrp  authentication   cipher   hcip
[r3-Tunnel0/0/0]nhrp  network-id   100

The topic requires intranet use RIP Get route

[r1]RIP 1  Process number 
[r1-rip-1]version  2   Version number 
[r1-rip-1]undo    summary   Turn off auto rollup 
[r1-rip-1]network  10.0.0.0  Announce the tunnel address 
[r1-rip-1]network  192.168.1.0 Announce private network , This is similar to drainage , Introduce the flow into the tunnel  
[r1]interface  Tunnel    0/0/0
[r1-Tunnel0/0/0]undo rip split-horizon  Turn off horizontal split 

  At the same time R2\R3 To announce

test

 R1-R4 Use HDLC encapsulation

R1:

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

R4：

[r4-Serial4/0/0]link-protocol hdlc 
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y

R4-R2 Use ppp encapsulation ,ppp authentication

R4：

[r4-aaa]local-user 702 privilege  level 15 password  cipher 123456
Info: Add a new user.
[r4-aaa]local-user 702 service-type ppp
[r4-aaa]q
[r4]inter s4/0/1
[r4-Serial4/0/1]ppp authentication-mode pap   authentication pap

R2:

[r2]interface s4/0/0
[r2-Serial4/0/0]link-protocol ppp
[r2-Serial4/0/0]ppp pap local-user 702 password cipher 123456

R3-R4 Use ppp encapsulation ,chap authentication

R4：

[r4-Serial3/0/0]link-protocol ppp
[r4-Serial3/0/0]ppp authentication-mode chap 

R3:

[r3]inter s4/0/0
[r3-Serial4/0/0]link-protocol ppp
[r3-Serial4/0/0]ppp chap user 702
[r3-Serial4/0/0]ppp chap password cipher 123456

Subject requirements can be visited r4 The loopback of 2.2.2.2 , Configure address translation

 R1：

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

R2\R3 Same as R1

test

  End of experiment