MPLS 综合实验_bpg发布loopback路由-优快云博客

本文链接：https://blog.youkuaiyun.com/Figust_07/article/details/128839043

该文档详细展示了网络设备的IP配置，包括OSPF路由协议的设置，MPLS和BGP的配置以实现数据传输。此外，还介绍了VRF的创建和路由发布，用于隔离不同客户的网络环境。通过这些配置，实现了公网访问和客户私网之间的通信。

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1、实验要求

2、实验拓扑

3、公网底层ip配置及ospf配置

ip：

R2:
[r2]interface g0/0/2
[r2-GigabitEthernet0/0/2]ip address 23.1.1.1 24
[r2]interface LoopBack 0
[r2-LoopBack0]ip address 2.2.2.2 24

R3:
[r3]interface g0/0/0
[r3-GigabitEthernet0/0/0]ip address 23.1.1.2 24
[r3]interface g0/0/1
[r3-GigabitEthernet0/0/1]ip address 34.1.1.1 24
[r3]interface LoopBack 0
[r3-LoopBack0]ip address 3.3.3.3 24

R4:
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip address 34.1.1.2 24
[r4]int g4/0/0
[r4-GigabitEthernet4/0/0]ip address 47.1.1.1 24
[r4]interface LoopBack 0
[r4-LoopBack0]ip address 4.4.4.4 24

R7:
[r7]int g0/0/1
[r7-GigabitEthernet0/0/1]ip address 47.1.1.2 24

ospf：

R2:
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]a 0
[r2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0

R3:
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]a 0
[r3-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 34.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0

R4:
[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]a 0
[r4-ospf-1-area-0.0.0.0]network 34.1.1.0 0.0.0.255
[r4-ospf-1-area-0.0.0.0]network 47.1.1.0 0.0.0.255
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0

此时只需在R7上写一条指向R4的缺省就可实现R7访问公网

[r7]ip route-static 0.0.0.0 0 47.1.1.2

4、配置MPLS及BGP

MPLS:

R2:
[r2]mpls lsr-id 2.2.2.2
[r2]mpls 
[r2-mpls]mpls ldp
[r2-mpls-ldp]q
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]mpls 
[r2-GigabitEthernet0/0/0]mpls ldp

R3:
[r3]mpls lsr-id 3.3.3.3
[r3]mpls 
[r3-mpls]mpls ldp
[r3-mpls-ldp]q
[r3]interface 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:
[r4]mpls lsr-id 4.4.4.4
[r4]mpls 
Info: Mpls starting, please wait... OK!
[r4-mpls]mpls ldp
[r4-mpls-ldp]q
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]mpls
[r4-GigabitEthernet0/0/0]mpls ldp

BGP:

R2:
[r2]bgp 1
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 4.4.4.4 as 1
[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0

R4:
[r4]bgp 1
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 2.2.2.2 as 1
[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0

查看bgp邻居是否建立成功

5、vrf 配置

1.1客户A创建VRF空间以及划分接口到VRF并配置IP地址

R2:
[r2]ip vpn-instance a
[r2-vpn-instance-a1]route-distinguisher 1:1
[r2-vpn-instance-a1-af-ipv4]vpn-target 1:1 
[r2]interface g0/0/0
[r2-GigabitEthernet0/0/0]ip binding vpn-instance a
[r2-GigabitEthernet0/0/0]ip address 192.168.2.2 24

R4:
[r4]ip vpn-instance a
[r4-vpn-instance-a2]route-distinguisher 1:1
[r4-vpn-instance-a2-af-ipv4]vpn-target 1:1 
[r4]interface g0/0/1
[r4-GigabitEthernet0/0/1]ip binding vpn-instance a
[r4-GigabitEthernet0/0/1]ip address 192.168.3.2 24

1.2 客户A私网配置IP地址并使用静态方式传递路由

R1:
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 192.168.2.1 24
[r1]int LoopBack 0
[r1-LoopBack0]ip address 192.168.1.1 24
[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

R2:
[r2]ip route-static vpn-instance a1 192.168.1.0 24 192.168.2.1

R5:
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip address 192.168.3.2 24
[r5]interface LoopBack 0
[r5-LoopBack0]ip address 192.168.4.1 24
[r5]ip route-static 192.168.1.0 24 192.168.3.2
[r5]ip route-static 192.168.2.0 24 192.168.3.2

R4:
[r4]ip route-static vpn-instance a2 192.168.4.0 24 192.168.3.2

1.3 配置MP-BGP并发布路由

R2:
[r2]bgp 1
[r2-bgp]ipv4-family vpnv4
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable
[r2-bgp-af-vpnv4]q
[r2-bgp]ipv4-family vpn-instance a
[r2-bgp-a1]network 192.168.1.0 24
[r2-bgp-a1]network 192.168.2.0 24

R4:
[r4]bgp 1
[r4-bgp]ipv4-family vpnv4
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable 
[r4-bgp-af-vpnv4]q
[r4-bgp]ipv4-family vpn-instance a
[r4-bgp-a2]network 192.168.3.0 24
[r4-bgp-a2]network 192.168.4.0 24

此时客户A的已经搭好了

2.1客户B创建VRF空间以及划分接口到VRF并配置IP地址

R2:
[r2]ip vpn-instance b1
[r2-vpn-instance-b1]route-distinguisher 2:2
[r2-vpn-instance-b1-af-ipv4]vpn-target 2:2
[r2]interface g0/0/1
[r2-GigabitEthernet0/0/1]ip binding vpn-instance b
[r2-GigabitEthernet0/0/1]ip address 192.168.2.2 24

R4:

[r4]ip vpn-instance b2
[r4-vpn-instance-b2]route-distinguisher 2:2
[r4-vpn-instance-b2-af-ipv4]vpn-target 2:2    
[r4]interface g0/0/2
[r4-GigabitEthernet0/0/2]ip binding vpn-instance b
[r4-GigabitEthernet0/0/2]ip address 192.168.3.2 24

2.2客户B私网配置IP地址并使用动态方式传递路由

R6:
[r6]int g0/0/0
[r6-GigabitEthernet0/0/0]ip address 192.168.2.1 24
[r6]int LoopBack 0
[r6-LoopBack0]ip address 192.168.1.1 24
[r6]rip 1
[r6-rip-1]v 2
[r6-rip-1]network 192.168.2.0 24

R2:
[r2]rip 1 vpn-instance b1
[r2-rip-1]v 2
[r2-rip-1]network 192.168.0.0

R7:
[r7]interface g0/0/0
[r7-GigabitEthernet0/0/0]ip address 192.168.3.1 24
[r7]int LoopBack 0
[r7-LoopBack0]ip address 192.168.4.2 24
[r7]ospf 2 router-id 7.7.7.7
[r7-ospf-2]a 0
[r7-ospf-2-area-0.0.0.0]network 192.168.3.0 0.0.0.255
[r7-ospf-2-area-0.0.0.0]network 192.168.4.0 0.0.0.255

R4:
[r4]ospf 2 vpn-instance b2 router-id 4.4.4.4
[r4-ospf-2]a 0
[r4-ospf-2-area-0.0.0.0]network 192.168.3.0 0.0.0.255

2.3配置MP-BGP并双向重发布路由

R2:
[r2]bgp 1
[r2-bgp]ipv4-family vpn-instance b
[r2-bgp-b1]import-route rip 1
[r2]rip 1
[r2-rip-1]import-route bgp

R4:
[r4]bgp 1
[r4-bgp]ipv4-family vpn-instance b
[r4-bgp-b2]import-route ospf 2
[r4]ospf 2 vpn-instance b
[r4-ospf-2]import-route bgp

此时客户B公司的mpls vp已搭建完成