本文主要是介绍华为设备配置BGP/MPLS IP 虚拟专用网，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1.配置IP地址
[PE1-LoopBack0]ip add 1.1.1.1 32
[PE1-GigabitEthernet0/0/0]ip add 20.1.1.1 24
[PE1-GigabitEthernet0/0/1]ip add 10.1.1.1 24
[PE1-GigabitEthernet0/0/2]ip add 10.2.1.1 24
[P-LoopBack0]ip add 2.2.2.2 32
[P-GigabitEthernet0/0/0]ip add 20.1.1.2 24
[P-GigabitEthernet0/0/1]ip add 30.1.1.2 24
[PE2-LoopBack0]ip add 3.3.3.3 32
[PE2-GigabitEthernet0/0/0]ip add 30.1.1.3 24
[PE2-GigabitEthernet0/0/1]ip add 10.3.1.3 24
[PE2-GigabitEthernet0/0/2]ip add 10.4.1.3 24
[CE1-GigabitEthernet0/0/0]ip add 10.1.1.10 24
[CE2-GigabitEthernet0/0/0]ip add 10.2.1.20 24
[CE3-GigabitEthernet0/0/0]ip add 10.3.1.30 24
[CE4-GigabitEthernet0/0/0]ip add 10.4.1.40 24
2.在PE1、P、PE2配置OSPF协议
[PE1]ospf 1
[PE1-ospf-1]area 0
[PE1-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[PE1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[P]ospf 1
[P-ospf-1]area 0
[P-ospf-1-area-0.0.0.0]network 20.1.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0]network 30.1.1.0 0.0.0.255
[P-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[PE2]ospf 1
[PE2-ospf-1]area 0
[PE2-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[PE2-ospf-1-area-0.0.0.0]network 30.1.1.0 0.0.0.255
3. 在PE1、P、PE2配置MPLS基本能力和MPLS LDP，建立LDP LSP
[PE1]mpls lsr-id 1.1.1.1
[PE1]mpls
[PE1]mpls ldp
[PE1-GigabitEthernet0/0/0]mpls
[PE1-GigabitEthernet0/0/0]mpls ldp
[P]mpls lsr-id 2.2.2.2
[P]mpls
[P]mpls ldp
[P-GigabitEthernet0/0/0]mpls
[P-GigabitEthernet0/0/0]mpls ldp
[P-GigabitEthernet0/0/1]mpls
[P-GigabitEthernet0/0/1]mpls ldp
[PE2]mpls lsr-id 3.3.3.3
[PE2]mpls
[PE2]mpls ldp
[PE2-GigabitEthernet0/0/0]mpls
[PE2-GigabitEthernet0/0/0]mpls ldp
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在PE设备上配置VPN实例，将CE接入PE
[PE1]ip vpn-instance vpna
[PE1-vpn-instance-vpna]route-distinguisher 100:1
[PE1-vpn-instance-vpna-af-ipv4]vpn-target 111:1 both
[PE1]ip vpn-instance vpnb
[PE1-vpn-instance-vpnb]route-distinguisher 100:2
[PE1-vpn-instance-vpnb-af-ipv4]vpn-target 222:2 both
[PE1-GigabitEthernet0/0/1]ip binding vpn-instance vpna
[PE1-GigabitEthernet0/0/1]ip add 10.1.1.1 24
[PE1-GigabitEthernet0/0/2]ip binding vpn-instance vpnb
[PE1-GigabitEthernet0/0/2]ip add 10.2.1.1 24
[PE2]ip vpn-instance vpna
[PE2-vpn-instance-vpna]route-distinguisher 200:1
[PE2-vpn-instance-vpna-af-ipv4]vpn-target 111:1 both
[PE2]ip vpn-instance vpnb
[PE2-vpn-instance-vpnb]route-distinguisher 200:2
[PE2-vpn-instance-vpnb-af-ipv4]vpn-target 222:2 both
[PE2-GigabitEthernet0/0/1]ip binding vpn-instance vpna
[PE2-GigabitEthernet0/0/1]ip add 10.3.1.3 24
[PE2-GigabitEthernet0/0/2]ip binding vpn-instance vpnb
[PE2-GigabitEthernet0/0/2]ip add 10.4.1.3 24
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在PE与CE之间建立EBGP对等体关系，引入VPN路由
[CE1]bgp 65410
[CE1-bgp]peer 10.1.1.1 as-number 100
[CE1-bgp]import-route direct
[CE2]bgp 65420
[CE2-bgp]peer 10.2.1.1 as-number 100
[CE2-bgp]import-route direct
[CE3]bgp 65430
[CE3-bgp]peer 10.3.1.3 as-number 100
[CE3-bgp]import-route direct
[CE4]bgp 65440
[CE4-bgp]peer 10.4.1.3 as-number 100
[CE4-bgp]import-route direct
[PE1]bgp 100
[PE1-bgp]ipv4-family vpn-instance vpna
[PE1-bgp-vpna]peer 10.1.1.10 as-number 65410
[PE1-bgp-vpna]import-route direct
[PE1-bgp]ipv4-family vpn-instance vpnb
[PE1-bgp-vpnb]peer 10.2.1.20 as-number 65420
[PE1-bgp-vpnb]import-route direct
[PE2]bgp 100
[PE2-bgp]ipv4-family vpn-instance vpna
[PE2-bgp-vpna]peer 10.3.1.30 as-number 65430
[PE2-bgp-vpna]import-route direct
[PE2-bgp]ipv4-family vpn-instance vpnb
[PE2-bgp-vpnb]peer 10.4.1.40 as-number 65440
[PE2-bgp-vpnb]import-route direct
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在PE之间建立MP-IBGP对等体关系
[PE1]bgp 100
[PE1-bgp]peer 3.3.3.3 as-number 100
[PE1-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[PE1-bgp]ipv4-family vpnv4
[PE1-bgp-af-vpnv4]peer 3.3.3.3 enable
[PE2]bgp 100
[PE2-bgp]peer 1.1.1.1 as-number 100
[PE2-bgp]peer 1.1.1.1 connect-interface LoopBack 0
[PE2-bgp]ipv4-family vpnv4
[PE2-bgp-af-vpnv4]peer 1.1.1.1 enable
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检查配置
同一VPN的CE能够相互Ping通，不同VPN的CE不能相互Ping通
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