题目

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拓扑图

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IP地址及环回配置

注：R2的g0/0/1口和g0/0/2口还有R4的g0/0/0口和g0/0/2口都先不配置IP，因为后面这些接口的IP需要放入vpn空间中

R1

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r1
[r1]int l0
[r1-LoopBack0]ip add 192.168.1.1 24
[r1-LoopBack0]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.2.1 24

R2

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r2
[r2]int l0
[r2-LoopBack0]ip add 2.2.2.2 24
[r2-LoopBack0]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 23.1.1.1 24

R3

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r3
[r3]int l0
[r3-LoopBack0]ip add 3.3.3.3 24
[r3-LoopBack0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 23.1.1.2 24
Aug 15 2023 08:58:18-08:00 r3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[r3-GigabitEthernet0/0/1]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 34.1.1.1 24

R4

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r4
[r4]int l0
[r4-LoopBack0]ip add 4.4.4.4 24
[r4-LoopBack0]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 34.1.1.2 24
[r4-GigabitEthernet0/0/1]

R5

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r5
[r5]int l0
[r5-LoopBack0]ip add 192.168.4.1 24
[r5-LoopBack0]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 192.168.3.2 24
Aug 15 2023 08:59:57-08:00 r5 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[r5-GigabitEthernet0/0/0]

R6

<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r6
[r6]int l0
[r6-LoopBack0]ip add 192.168.1.1 24
[r6-LoopBack0]int g0/0/0
[r6-GigabitEthernet0/0/0]ip add 192.168.2.1 24
Aug 15 2023 09:00:49-08:00 r6 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[r6-GigabitEthernet0/0/0]

R7

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname r7
[r7]int l0
[r7-LoopBack0]ip add 192.168.4.2 24
[r7-LoopBack0]int g0/0/0
[r7-GigabitEthernet0/0/0]ip add 192.168.3.2 24
Aug 15 2023 09:01:32-08:00 r7 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[r7-GigabitEthernet0/0/0]int g0/0/1
[r7-GigabitEthernet0/0/1]ip add 47.1.1.2 24
[r7-GigabitEthernet0/0/1]
Aug 15 2023 09:01:45-08:00 r7 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[r7-GigabitEthernet0/0/1]

配置OSPF

R2

[r2]ospf 1 rou	
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]net	
[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.1 0.0.0.0
[r2-ospf-1-area-0.0.0.0]

R3

[r3]ospf 1 rou	
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]net	
[r3-ospf-1-area-0.0.0.0]network 23.1.1.2 0.0.0.0 
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0

R4

[r4]ospf 1 rou	
[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]net	
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[r4-ospf-1-area-0.0.0.0]net	
[r4-ospf-1-area-0.0.0.0]network 34.1.1.2 0.0.0.0
[r4-ospf-1-area-0.0.0.0]

开启MPLS协议

R2

[r2]mpls ls	
[r2]mpls lsr-id 2.2.2.2
[r2]mpls
Info: Mpls starting, please wait... OK!
[r2-mpls]mpls ld	
[r2-mpls]mpls ldp
[r2-mpls-ldp]int g0/0/0
[r2-GigabitEthernet0/0/0]mpls
[r2-GigabitEthernet0/0/0]mpls ldp

R3

[r3]mpls ls	
[r3]mpls lsr-id 3.3.3.3
[r3]mpls
Info: Mpls starting, please wait... OK!
[r3-mpls]mpls ldp
[r3-mpls-ldp]int g0/0/1
[r3-GigabitEthernet0/0/1]mpls
[r3-GigabitEthernet0/0/1]mpls ldp
[r3-GigabitEthernet0/0/1]int g0/0/0
[r3-GigabitEthernet0/0/0]mpls
[r3-GigabitEthernet0/0/0]mpls ldp
[r3-GigabitEthernet0/0/0]

R4

[r4]mpls ls	
[r4]mpls lsr-id 4.4.4.4
[r4]mpls 
Info: Mpls starting, please wait... OK!
[r4-mpls]mpls ldp
[r4-mpls-ldp]int g0/0/1
[r4-GigabitEthernet0/0/1]mpls
[r4-GigabitEthernet0/0/1]mpls ldp
[r4-GigabitEthernet0/0/1]

配置VPN空间，并配置RD值和RT值

R2

对应R1的空间

[r2]ip vpn	
[r2]ip vpn-instance a1
[r2-vpn-instance-a1]ipv4	
[r2-vpn-instance-a1]ipv4-family 
[r2-vpn-instance-a1-af-ipv4]rou	
[r2-vpn-instance-a1-af-ipv4]route-distinguisher 1:1
[r2-vpn-instance-a1-af-ipv4]vpn	
[r2-vpn-instance-a1-af-ipv4]vpn-target 1:1
 IVT Assignment result: 
Info: VPN-Target assignment is successful.
 EVT Assignment result: 
Info: VPN-Target assignment is successful.
[r2-vpn-instance-a1-af-ipv4]

将R2上连接R1的接口g/0/0/1绑定到空间中，并配置IP

[r2]int g0/0/1
[r2-GigabitEthernet0/0/1]ip bin	
[r2-GigabitEthernet0/0/1]ip binding vpn	
[r2-GigabitEthernet0/0/1]ip binding vpn-instance a1
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r2-GigabitEthernet0/0/1]ip add 192.168.2.2 24
Aug 15 2023 09:32:48-08:00 r2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 
[r2-GigabitEthernet0/0/1]

对应R6的空间

[r2]ip vpn	
[r2]ip vpn-instance b1
[r2-vpn-instance-b1]ipv4	
[r2-vpn-instance-b1]ipv4-family 
[r2-vpn-instance-b1-af-ipv4]rou	
[r2-vpn-instance-b1-af-ipv4]route-distinguisher 2:2
[r2-vpn-instance-b1-af-ipv4]vpn	
[r2-vpn-instance-b1-af-ipv4]vpn-target 2:2
 IVT Assignment result: 
Info: VPN-Target assignment is successful.
 EVT Assignment result: 
Info: VPN-Target assignment is successful.
[r2-vpn-instance-b1-af-ipv4]

将R2上连接R6的接口g/0/0/2绑定到空间中，并配置IP

[r2]int g0/0/2
[r2-GigabitEthernet0/0/2]ip bin	
[r2-GigabitEthernet0/0/2]ip binding vpn	
[r2-GigabitEthernet0/0/2]ip binding vpn-instance b1
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r2-GigabitEthernet0/0/2]ip add 192.168.2.2 24
Aug 15 2023 09:37:45-08:00 r2 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[r2-GigabitEthernet0/0/2

R4

对应R1的空间

[r4]ip vpn-instance a1
[r4-vpn-instance-a1]ipv4
[r4-vpn-instance-a1-af-ipv4]rou	
[r4-vpn-instance-a1-af-ipv4]route-distinguisher 1:1
[r4-vpn-instance-a1-af-ipv4]vpn	
[r4-vpn-instance-a1-af-ipv4]vpn-target 1:1
 IVT Assignment result: 
Info: VPN-Target assignment is successful.
 EVT Assignment result: 
Info: VPN-Target assignment is successful.
[r4-vpn-instance-a1-af-ipv4]

将R4上连接R5的接口g/0/0/0绑定到空间中，并配置IP

[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip bin	
[r4-GigabitEthernet0/0/0]ip binding vpn	
[r4-GigabitEthernet0/0/0]ip binding vpn-instance a1
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r4-GigabitEthernet0/0/0]ip add 192.168.3.1 24
Aug 15 2023 09:44:17-08:00 r4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[r4-GigabitEthernet0/0/0]

对应R6的空间

[r4]ip vpn	
[r4]ip vpn-instance b1
[r4-vpn-instance-b1]ipv4	
[r4-vpn-instance-b1]ipv4-family 
[r4-vpn-instance-b1-af-ipv4]rou	
[r4-vpn-instance-b1-af-ipv4]route-distinguisher 2:2
[r4-vpn-instance-b1-af-ipv4]vpn	
[r4-vpn-instance-b1-af-ipv4]vpn-target 2:2
 IVT Assignment result: 
Info: VPN-Target assignment is successful.
 EVT Assignment result: 
Info: VPN-Target assignment is successful.
[r4-vpn-instance-b1-af-ipv4]

将R4上连接R7的接口g/0/0/2绑定到空间中，并配置IP

[r4]int g0/0/2
[r4-GigabitEthernet0/0/2]ip bin	
[r4-GigabitEthernet0/0/2]ip binding vpn	
[r4-GigabitEthernet0/0/2]ip binding vpn-instance b1
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r4-GigabitEthernet0/0/2]ip add 192.168.3.1 24
[r4-GigabitEthernet0/0/2]
Aug 15 2023 09:45:41-08:00 r4 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP 
on the interface GigabitEthernet0/0/2 has entered the UP state. 
[r4-GigabitEthernet0/0/2]

建立BGP邻居

R2

[r2]bgp 1
[r2-bgp]rou
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 4.4.4.4 as-	
[r2-bgp]peer 4.4.4.4 as-number 1
[r2-bgp]peer 4.4.4.4 con	
[r2-bgp]peer 4.4.4.4 connect-interface l	
[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[r2-bgp]ipv4	
[r2-bgp]ipv4-family vpn	
[r2-bgp]ipv4-family vpnv4
[r2-bgp-af-vpnv4]peer 4.4.4.4 en	
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable 
[r2-bgp-af-vpnv4]

R4

[r4]bgp 1
[r4-bgp]rou	
[r4-bgp]route	
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 2.2.2.2 as	
[r4-bgp]peer 2.2.2.2 as-number 1
[r4-bgp]peer	
[r4-bgp]peer 2.2.2.2 con	
[r4-bgp]peer 2.2.2.2 connect-interface l	
[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[r4-bgp]ipv4	
[r4-bgp]ipv4-family vpnv4 
[r4-bgp-af-vpnv4]peer 2.2.2.2 en	
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable 
[r4-bgp-af-vpnv4]

R1和R2，R4和R5建立静态连接

R1

[r1]ip rou	
[r1]ip route
[r1]ip route-static 192.168.3.0 24 192.168.2.2
[r1]ip route-static 192.168.4.0 24 192.168.2.2
[r1]

R2

[r2]ip rou	
[r2]ip route
[r2]ip route-static vpn	
[r2]ip route-static vpn-instance a1 192.168.1.0 24 192.168.2.1
[r2]
[r2]bgp 1
[r2-bgp]ipv4	
[r2-bgp]ipv4-family vpn	
[r2-bgp]ipv4-family vpn-instance a1 
[r2-bgp-a1]imp	
[r2-bgp-a1]import-route dir	
[r2-bgp-a1]import-route direct 
[r2-bgp-a1]imp	
[r2-bgp-a1]import-route st	
[r2-bgp-a1]import-route static 
[r2-bgp-a1]

R4

[r4]ip rou	
[r4]ip route
[r4]ip route-static vpn	
[r4]ip route-static vpn-instance a1 192.168.4.0 24 192.168.3.2
[r4]
[r4]bgp 1
[r4-bgp]ipv4	
[r4-bgp]ipv4-family vpn	
[r4-bgp]ipv4-family vpn-instance a1
[r4-bgp-a1]imp	
[r4-bgp-a1]import-route dir	
[r4-bgp-a1]import-route direct 
[r4-bgp-a1]impo	
[r4-bgp-a1]import-route st	
[r4-bgp-a1]import-route static 
[r4-bgp-a1]

R6和R2，R4和R7建立动态连接

R6

[r6]rip 1
[r6-rip-1]vers	
[r6-rip-1]version 2
[r6-rip-1]net	
[r6-rip-1]network 192.168.1.0
[r6-rip-1]network 192.168.2.0
[r6-rip-1]

R2

[r2]rip 2 vpn	
[r2]rip 1 vpn-instance b1
[r2-rip-1]vers	
[r2-rip-1]version 2
[r2-rip-1]net	
[r2-rip-1]network 192.168.2.0
[r2-rip-1]

R7

[r7]ospf 1 rou	
[r7]ospf 1 router-id 7.7.7.7
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]net	
[r7-ospf-1-area-0.0.0.0]network 192.168.3.2 0.0.0.0
[r7-ospf-1-area-0.0.0.0]net	
[r7-ospf-1-area-0.0.0.0]network 192.168.4.2 0.0.0.0
[r7-ospf-1-area-0.0.0.0]

R4

[r4]ospf 2 vpn	
[r4]ospf 2 vpn-instance b1
[r4-ospf-2]area 0
[r4-ospf-2-area-0.0.0.0]net	
[r4-ospf-2-area-0.0.0.0]network 192.168.3.1 0.0.0.0
[r4-ospf-2-area-0.0.0.0]

双向重发布

R2

[r2]bgp 1
[r2-bgp]ipv4	
[r2-bgp]ipv4-family vpn	
[r2-bgp]ipv4-family vpn-instance b1
[r2-bgp-b1]import	
[r2-bgp-b1]import-route rip 1
[r2-bgp-b1]q
[r2-bgp]q
[r2]rip 1
[r2-rip-1]q
[r2]rip 1 vpn	
[r2]rip 1 vpn-instance b1
[r2-rip-1]imp	
[r2-rip-1]import-route bgp
[r2-rip-1]

R4

[r4]ospf 2 vpn-instance b1
[r4-ospf-2]imp	
[r4-ospf-2]import-route bgp
[r4-ospf-2]q
[r4]bgp 1
[r4-bgp]ipv4	
[r4-bgp]ipv4-family vpn	
[r4-bgp]ipv4-family vpn-instance b1
[r4-bgp-b1]imp	
[r4-bgp-b1]import-route ospf 2
[r4-bgp-b1]

R7可以ping通R2/R3/R4的环回

R2

[r2]ip rou	
[r2]ip route
[r2]ip route-static 0.0.0.0 0 23.1.1.2
[r2]

R3

[r3]ip rou	
[r3]ip route
[r3]ip route-static 0.0.0.0 0 34.1.1.2
[r3]

R7

[r7]acl 2000
[r7-acl-basic-2000]rule per	
[r7-acl-basic-2000]rule permit sou	
[r7-acl-basic-2000]rule permit source any
[r7-acl-basic-2000]q
[r7]int g0/0/1
[r7-GigabitEthernet0/0/1]nat out	
[r7-GigabitEthernet0/0/1]nat outbound 2000
[r7]ip route-static 0.0.0.0 0 47.1.1.1