实验要求及拓扑

一、实验思路

1.先中间R2-R4区域可通

2.在R2、R4上创建两个虚拟空间

3.将R2上的R2和R1、R6直连接口关联到对应虚拟空间、将R4上的R4和R5、R7直连接口关联到对应虚拟空间，然后再配置IP地址

4.R2和R4BGP建邻

5.R2和R4邻居间端建立一个VPNV4的关系，用于传递VPNV4路由

6.在R2、R3、R4配置MPLS – LDP

7.在R2上写去R1环回的路由，在R4上写去R5环回的路由，在R1上写去R5直连接口和环回的路由，在R5上写去R1直连接口和环回的路由

8.在R2、R4启对于R1、R2、R6、R7静态、动态协议和重发部等操作一定要在虚拟空间里

二、虚拟机操作

1.配置R2-R4IP地址及使用OSPF使R2-R4区域可通

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 23.1.1.1 24
[r2-GigabitEthernet0/0/0]int l0
[r2-LoopBack0]ip add 2.2.2.2 24

[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 23.1.1.2 24
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 34.1.1.1 24
[r3-GigabitEthernet0/0/1]int g0/0/0
[r3-GigabitEthernet0/0/0]int l0
[r3-LoopBack0]ip add 3.3.3.3 24

[r4-GigabitEthernet0/0/0]ip add 34.1.1.2 24
[r4-GigabitEthernet0/0/0]int l0
[r4-LoopBack0]ip add 4.4.4.4 24

[r4]int g4/0/0
[r4-GigabitEthernet4/0/0]ip add 47.1.1.1 24

[r7]int g0/0/1
[r7-GigabitEthernet0/0/1]ip add 47.1.1.2 24

[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]a 0
[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

[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]a 0
[r3-ospf-1-area-0.0.0.0]network 0.0.0.0 255.255.255.255

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]a 0
[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]network 4.4.4.4 0.0.0.0

[r7]ospf 2
[r7-ospf-2]a 0
[r7-ospf-2-area-0.0.0.0]network 47.1.1.2 0.0.0.0

2.在R2、R4上创建两个虚拟空间

[r2]ip vpn-instance a1
[r2-vpn-instance-a1]ipv4-family
[r2-vpn-instance-a1-af-ipv4]route-distinguisher 1:1
[r2-vpn-instance-a1-af-ipv4]vpn-target 1:1

[r4]ip vpn-instance a1
[r4-vpn-instance-a1]ipv4-family
[r4-vpn-instance-a1-af-ipv4]route-distinguisher 1:1
[r4-vpn-instance-a1-af-ipv4]vpn-target 1:1

[r2]ip vpn-instance a2
[r2-vpn-instance-a2]ipv4-family
[r2-vpn-instance-a2-af-ipv4]route-distinguisher 2:2
[r2-vpn-instance-a2-af-ipv4]vpn-target 2:2

[r4]ip vpn-instance a2
[r4-vpn-instance-a2]ipv4-family
[r4-vpn-instance-a2-af-ipv4]route-distinguisher 2:2
[r4-vpn-instance-a2-af-ipv4]vpn-target 2:2

3.将R2上的R2和R1、R6直连接口关联到对应虚拟空间、将R4上的R4和R5、R7直连接口关联到对应虚拟空间，然后再配置IP地址

[r2-vpn-instance-a1-af-ipv4]int g0/0/1
[r2-GigabitEthernet0/0/1]ip binding vpn-instance a1
[r2-GigabitEthernet0/0/1]ip add 192.168.2.2 24

[r4-vpn-instance-a1-af-ipv4]int g0/0/1

[r4-GigabitEthernet0/0/1]ip binding vpn-instance a1
[r4-GigabitEthernet0/0/1]ip add 192.168.3.1 24

[r2-vpn-instance-a2-af-ipv4]int g0/0/2
[r2-GigabitEthernet0/0/2]ip binding vpn-instance a2
[r2-GigabitEthernet0/0/2]ip add 192.168.2.2 24

[r4-vpn-instance-a2-af-ipv4]int g0/0/2
[r4-GigabitEthernet0/0/2]ip binding vpn-instance a2
[r4-GigabitEthernet0/0/2]ip add 192.168.3.1 24

4.R2和R4BGP建邻

[r2]bgp 1
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 4.4.4.4 as-number 1
[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0

[r4]bgp 1
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 2.2.2.2 as-number 1
[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0

5.R2和R4邻居间端建立一个VPNV4的关系，用于传递VPNV4路由

[r2]bgp 1
[r2-bgp]ipv4-family vpnv4
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable

[r4]bgp 1
[r4-bgp]ipv4-family vpnv4
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable

6.在R2、R3、R4配置MPLS – LDP

[r2]mpls lsr-id 2.2.2.2

[r2]mpls

[r2]mpls ldp

[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]mpls
[r2-GigabitEthernet0/0/0]mpls ldp

[r3]mpls lsr-id 3.3.3.3

[r3]mpls

[r3]mpls ldp

[r3]int g0/0/0

[r3-GigabitEthernet0/0/0]mpls
[r3-GigabitEthernet0/0/0]mpls ldp
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]mpls
[r3-GigabitEthernet0/0/1]mpls ldp

[r4]mpls lsr-id 4.4.4.4

[r4]mpls

[r4]mpls ldp

[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]mpls
[r4-GigabitEthernet0/0/0]mpls ldp