Hcip ppp/hdlc, gre/mgre experiments

AR1：

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R1
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 192.168.1.1 24
Jul 10 2022 19:18:15-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R1-GigabitEthernet0/0/0]ip pool p0
Info: It's successful to create an IP address pool.
[R1-ip-pool-p0]netbios-type
[R1-ip-pool-p0]network 192.168.1.0 mask 24
[R1-ip-pool-p0]gateway-list 192.168.1.1
[R1-ip-pool-p0]dns-list 192.168.1.255
[R1-ip-pool-p0]q
[R1]dhcp enable 
Info: The operation may take a few seconds. Please wait for a moment.done.
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]dhcp select global 
[R1-GigabitEthernet0/0/0]q
[R1]int s4/0/0
[R1-Serial4/0/0]ip add 15.0.0.1 24
[R1-Serial4/0/0]

 AR2:

<Huawei>sys 
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R2
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 192.168.2.1 24
Jul 10 2022 19:26:01-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R2-GigabitEthernet0/0/0]q
[R2]dhcp enable 
Info: The operation may take a few seconds. Please wait for a moment.done.
[R2]ip policy-based-route
[R2]ip pool p0
Info: It's successful to create an IP address pool.    
[R2-ip-pool-p0]netbios-type
[R2-ip-pool-p0]network 192.168.2.0 mask 24
[R2-ip-pool-p0]gateway-list 192.168.2.1    
[R2-ip-pool-p0]dns-list 192.168.2.255
[R2-ip-pool-p0]int g0/0/0
[R2-GigabitEthernet0/0/0]dhcp select global 
[R2-GigabitEthernet0/0/0]int s4/0/0
[R2-Serial4/0/0]ip add 25.0.0.1 24
[R2-Serial4/0/0]

AR3:

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R3
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 192.168.3.1 24
Jul 10 2022 19:29:58-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R3-GigabitEthernet0/0/0]int s4/0/0
[R3-Serial4/0/0]ip add 35.0.0.1 24
[R3-Serial4/0/0]q    
[R3]dhcp enable 
Info: The operation may take a few seconds. Please wait for a moment.done.
[R3]ip pool po
Info: It's successful to create an IP address pool.
[R3-ip-pool-po]network 192.168.3.0 mask 24
[R3-ip-pool-po]gateway-list 192.168.3.1
[R3-ip-pool-po]dns-list 192.168.3.255
[R3-ip-pool-po]int g0/0/0    
[R3-GigabitEthernet0/0/0]dhcp select global 
AR4

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R4
[R4]dh    
[R4]dhcp en    
[R4]dhcp enable 
Info: The operation may take a few seconds. Please wait for a moment.done.
[R4]ip po    
[R4]ip policy-based-route
[R4]ip pool p0
Info: It's successful to create an IP address pool.
[R4-ip-pool-p0]network 192.168.4.0 mask 24
[R4-ip-pool-p0]gateway-list 192.168.4.1
[R4-ip-pool-p0]dns-list 192.168.4.255
[R4-ip-pool-p0]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 45.0.0.1 24
[R4-GigabitEthernet0/0/0]
Jul 10 2022 19:36:24-08:00 R4 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 192.168.4.1 24
[R4-GigabitEthernet0/0/1]
Jul 10 2022 19:36:37-08:00 R4 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[R4-GigabitEthernet0/0/1]dhcp select global
[R4-GigabitEthernet0/0/1]q
[R4]
AR5

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys R5
[R5]int s3/0/0
[R5-Serial3/0/0]ip add 15.0.0.2 24
[R5-Serial3/0/0]
Jul 10 2022 19:45:06-08:00 R5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol PPP IPCP on the interface Serial3/0/0 has entered the UP state. 
[R5-Serial3/0/0]int s3/0/1
[R5-Serial3/0/1]ip add 25.0.0.2 24
[R5-Serial3/0/1]
Jul 10 2022 19:45:25-08:00 R5 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol PPP IPCP on the interface Serial3/0/1 has entered the UP state. 
[R5-Serial3/0/1]int s4/0/1
[R5-Serial4/0/1]ip add 35.0.0.2 24
[R5-Serial4/0/1]
Jul 10 2022 19:45:40-08:00 R5 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PPP IPCP on the interface Serial4/0/1 has entered the UP state. 
[R5-Serial4/0/1]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 45.0.0.2 24
[R5-GigabitEthernet0/0/0]
Jul 10 2022 19:45:56-08:00 R5 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP on the interface GigabitEthernet0/0/0 has entered the UP state. 
[R5-GigabitEthernet0/0/0]int l0
[R5-LoopBack0]ip add 5.5.5.1 24
[R5-LoopBack0]
Write the default on each router
[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 and R5 Of PAP Certified and R5 Is the main certification party

R1

<R1>sys
Enter system view, return user view with Ctrl+Z.
[R1]aaa
[R1-aaa]local-user wp password cipher 123456        —— Add users
Info: Add a new user.
[R1-aaa]local-user wp service-type ppp
[R1-aaa]q     
[R1]int s4/0/0
[R1-Serial4/0/0]ppp au
[R1-Serial4/0/0]ppp authentication-mode pap        —— Enter the interface to start the authentication mode
R2

<R5>sys 
Enter system view, return user view with Ctrl+Z.
[R5]int s3/0/0
[R5-Serial3/0/0]ppp pap lo
[R5-Serial3/0/0]ppp pap local-user wp pa
[R5-Serial3/0/0]ppp pap local-user wp password ci
[R5-Serial3/0/0]ppp pap local-user wp password cipher 123456

R2 And R5 Of CHAP authentication , also R5 Main certifier

<R2>sys
Enter system view, return user view with Ctrl+Z.
[R2]aaa
[R2-aaa]local-user wp password cipher 123456
Info: Add a new user.
[R2-aaa]local-user wp service-type ppp
[R2-aaa]int s4/0/0
[R2-Serial4/0/0]ppp authentication-mode chap
<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]int s3/0/1
[R5-Serial3/0/1]ppp ch
[R5-Serial3/0/1]ppp chap u
[R5-Serial3/0/1]ppp chap user wp
[R5-Serial3/0/1]ppp cha
[R5-Serial3/0/1]ppp chap pa
[R5-Serial3/0/1]ppp chap password ci 
[R5-Serial3/0/1]ppp chap password cipher 123456
[R5-Serial3/0/1]
R3 On R5 Used between HDLC encapsulation

[R3]int s4/0/0
[R3-Serial4/0/0]lin
[R3-Serial4/0/0]link-protocol hd
[R3-Serial4/0/0]link-protocol hdlc 
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y
Jul 10 2022 20:03:22-08:00 R3 %%01IFNET/4/CHANGE_ENCAP(l)[0]:The user performed the configuration that will change the encapsulation protocol of the link and then selected Y. 
[R3-Serial4/0/0]
[R3-Serial4/0/0]
Jul 10 2022 20:03:22-08:00 R3 %%01PPP/4/PHYSICALDOWN(l)[1]:On the interface Serial4/0/0, PPP link was closed because the status of the physical layer was Down. 
[R3-Serial4/0/0]
Jul 10 2022 20:03:22-08:00 R3 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol PPP on the interface Serial4/0/0 has entered the DOWN state. 
[R3-Serial4/0/0]
Jul 10 2022 20:03:22-08:00 R3 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol PPP IPCP on the interface Serial4/0/0 has entered the DOWN state. 
[R3-Serial4/0/0]
<R5>sys
Enter system view, return user view with Ctrl+Z.
[R5]int s4/0/1
[R5-Serial4/0/1]lin
[R5-Serial4/0/1]link-protocol hd
[R5-Serial4/0/1]link-protocol hdlc 
Warning: The encapsulation protocol of the link will be changed. Continue? [Y/N]:y
Jul 10 2022 20:07:38-08:00 R5 %%01IFNET/4/CHANGE_ENCAP(l)[0]:The user performed the configuration that will change the encapsulation protocol of the link and then selected Y. 
[R5-Serial4/0/11]
[R5-Serial4/0/1]q
RIP

R1：
[R1]rip
[R1-rip-1]ne
[R1-rip-1]network 192.168.1.0
[R1-rip-1]ne
[R1-rip-1]network 123.0.0.0
[R1-rip-1]
 
R2：
[R2]rip     
[R2-rip-1]ne
[R2-rip-1]network 192.168.2.0 
[R2-rip-1]network 123.0.0.0  
[R2-rip-1]
 
R3：
[R3]rip
[R3-rip-1]ne
[R3-rip-1]network 192.168.3.0
[R3-rip-1]ne
[R3-rip-1]network 123.0.0.0
[R3-rip-1]
 
R4：
[R4]rip     
[R4-rip-1]ne
[R4-rip-1]network 192.168.4.0
[R4-rip-1]
MGRE Environment building

MGRE used 192.168.5.0/24

R1

<R1>sys
Enter system view, return user view with Ctrl+Z.
[R1]int t0/0/0
[R1-Tunnel0/0/0]ip add 192.168.5.1 24
[R1-Tunnel0/0/0]tu
[R1-Tunnel0/0/0]tunnel-protocol gr
[R1-Tunnel0/0/0]tunnel-protocol gre p2
[R1-Tunnel0/0/0]tunnel-protocol gre p2mp 
[R1-Tunnel0/0/0]so
[R1-Tunnel0/0/0]source 15.0.0.1
Jul 10 2022 22:20:44-08:00 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]
[R1-Tunnel0/0/0]ne
[R1-Tunnel0/0/0]nh
[R1-Tunnel0/0/0]nhrp ne
[R1-Tunnel0/0/0]nhrp network-id 100
[R1-Tunnel0/0/0]
R2

<R2>sys
Enter system view, return user view with Ctrl+Z.
[R2]int t0/0/0
[R2-Tunnel0/0/0]ip add 192.168.5.2 24
[R2-Tunnel0/0/0]tu
[R2-Tunnel0/0/0]tunnel-protocol gr
[R2-Tunnel0/0/0]tunnel-protocol gre p2
[R2-Tunnel0/0/0]so
[R2-Tunnel0/0/0]source s4/0/0
Jul 10 2022 22:23:25-08:00 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]
[R2-Tunnel0/0/0]nh
[R2-Tunnel0/0/0]nhrp ne
[R2-Tunnel0/0/0]nhrp network-id 100
[R2-Tunnel0/0/0]nh
[R2-Tunnel0/0/0]nhrp en
[R2-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 re
[R2-Tunnel0/0/0]nhrp entry 192.168.5.1 15.0.0.1 register 
[R2-Tunnel0/0/0]
R2 and R3 Empathy

see NHRP Information collection

R1 For the central site ;R1,R4 From point to point GRE

AR1

[R1]int t0/0/1
[R1-Tunnel0/0/1]ip add 192.168.6.1 24
[R1-Tunnel0/0/1]tu
[R1-Tunnel0/0/1]tunnel-protocol gr
[R1-Tunnel0/0/1]tunnel-protocol gre 
[R1-Tunnel0/0/1]so
[R1-Tunnel0/0/1]source 15.0.0.1
[R1-Tunnel0/0/1]de
[R1-Tunnel0/0/1]description 45.0.0.1
[R1-Tunnel0/0/1]
 AR4

[R4]int t0/0/1
[R4-Tunnel0/0/1]ip add 192.168.6.2 24
[R4-Tunnel0/0/1]tu
[R4-Tunnel0/0/1]tunnel-protocol g
[R4-Tunnel0/0/1]tunnel-protocol gre 
[R4-Tunnel0/0/1]so
[R4-Tunnel0/0/1]source 45.0.0.1
[R4-Tunnel0/0/1]de
[R4-Tunnel0/0/1]description 15.0.0.1
[R4-Tunnel0/0/1]
The entire private network is based on RIP Network wide accessibility

AR1：
[R1]rip
[R1-rip-1]v 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
 
AR2：
<R2>sys
Enter system view, return user view with Ctrl+Z.
[R2]rip
[R2-rip-1]v 2
[R2-rip-1]network 192.168.2.0
[R2-rip-1]network 192.168.5.0
[R2-rip-1]q
 
AR3：
<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]rip
[R3-rip-1]v 2
[R3-rip-1]network 192.168.2.0
[R3-rip-1]network 192.168.5.0
[R3-rip-1]network 192.168.3.0     
[R3-rip-1]
 
AR4：
[R4]rip
[R4-rip-1]v 2
[R4-rip-1]ne
[R4-rip-1]network 192.168.4.0
[R4-rip-1]network 192.168.6.0
[R4-rip-1]
 
all PC Set up private IP As source IP, You can visit R5 Loopback

For all edge router interfaces NAT transformation

R1

[R1]acl 2000
[R1-acl-basic-2000]ru
[R1-acl-basic-2000]rule per
[R1-acl-basic-2000]rule permit so
[R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255
[R1-acl-basic-2000]int s4/0/0
[R1-Serial4/0/0]na
[R1-Serial4/0/0]nat ou
[R1-Serial4/0/0]nat outbound 2000
[R1-Serial4/0/0]
R2

[R2]acl 2000
[R2-acl-basic-2000]ru
[R2-acl-basic-2000]rule per
[R2-acl-basic-2000]rule permit so
[R2-acl-basic-2000]rule permit source 192.168.2.0 0.0.0.255
[R2-acl-basic-2000]int s4/0/0
[R2-Serial4/0/0]na
[R2-Serial4/0/0]nat ou
[R2-Serial4/0/0]nat outbound 2000
[R2-Serial4/0/0]q  
R3

[R3]acl 2000 
[R3-acl-basic-2000]ru
[R3-acl-basic-2000]rule per
[R3-acl-basic-2000]rule permit s
[R3-acl-basic-2000]rule permit source 192.168.3.0 0.0.0.255
[R3-acl-basic-2000]int s4/0/0
[R3-Serial4/0/0]na
[R3-Serial4/0/0]nat ou
[R3-Serial4/0/0]nat outbound 2000
[R3-Serial4/0/0]q
R4

<R4>sys
Enter system view, return user view with Ctrl+Z.
[R4]acl
[R4]acl 2000
[R4-acl-basic-2000]ru
[R4-acl-basic-2000]rule per
[R4-acl-basic-2000]rule permit ?
  fragment             Check fragment packet
  none-first-fragment  Check the subsequence fragment packet  
  source               Specify source address
  time-range           Specify a special time
  vpn-instance         Specify a VPN-Instance
  <cr>                 Please press ENTER to execute command 
[R4-acl-basic-2000]rule permit s
[R4-acl-basic-2000]rule permit source 192.168.4.0 0.0.0.255
[R4-acl-basic-2000]int g0/0/0
[R4-GigabitEthernet0/0/0]na
[R4-GigabitEthernet0/0/0]nat ?
  outbound  Specify net address translation
  server    Specify NAT server
  static    Specify static NAT
[R4-GigabitEthernet0/0/0]nat ou
[R4-GigabitEthernet0/0/0]nat outbound 2000
[R4-GigabitEthernet0/0/0]q