效果:r7 ping通r1,r8; r8 ping 通r1,r7
代码:#先配置好接口ip,然后配置mpls
[r1]
ip route-static 0.0.0.0 0 12.1.1.2
[r2]
ip route-static vpn-instance 1 1.1.1.1 32 12.1.1.1
ip vpn-instance 1
? route-distinguisher 1:1
? vpn-target 1:1 export-extcommunity
? vpn-target 2:2 3:3 import-extcommunity
route recursive-lookup tunnel? ? ? ? ? ? ? ? #使能迭代隧道功能
ospf 1 router-id 2.2.2.2?
?area 0
? network 2.2.2.2 0.0.0.0?
? network 23.1.1.1 0.0.0.0?
? network 24.1.1.1 0.0.0.0?
mpls lsr-id 2.2.2.2
mpls
mpls ldp
interface GigabitEthernet0/0/0
?ip binding vpn-instance 1
interface GigabitEthernet0/0/1
?mpls
?mpls ldp
interface GigabitEthernet0/0/2
?mpls
?mpls ldp
bgp 100
?router-id 2.2.2.2
?peer 5.5.5.5 as-number 100?
?peer 5.5.5.5 connect-interface LoopBack0
?peer 6.6.6.6 as-number 100?
?ipv4-family vpnv4
? peer 5.5.5.5 enable
? peer 5.5.5.5 next-hop-local?
? peer 6.6.6.6 enable
? peer 6.6.6.6 next-hop-local?
?ipv4-family vpn-instance 1?
? import-route static
?
[r3]
route recursive-lookup tunnel
ospf 1 router-id 3.3.3.3?
?area 0.0.0.0?
? network 0.0.0.0 255.255.255.255?
mpls lsr-id 3.3.3.3
mpls
mpls ldp
interface GigabitEthernet0/0/0
?mpls
?mpls ldp
interface GigabitEthernet0/0/1
?mpls
?mpls ldp
interface GigabitEthernet0/0/2
?ip address 35.1.1.1 255.255.255.0?
?mpls
?mpls ldp
[r4] 同r3
[r5]
route recursive-lookup tunnel
ospf 1 router-id 5.5.5.5?
?area 0.0.0.0?
? network 5.5.5.5 0.0.0.0?
? network 35.1.1.2 0.0.0.0?
? network 45.1.1.2 0.0.0.0?
mpls lsr-id 5.5.5.5
mpls
mpls ldp
#r5的g0/0/0,g0/0/1和r2的g0/0/1,g0/0/2类似
ip vpn-instance 2
? route-distinguisher 2:2
? vpn-target 2:2 export-extcommunity
? vpn-target 1:1 3:3 import-extcommunity
ospf 2 vpn-instance 2
?import-route bgp
?area 0.0.0.0?
? network 57.1.1.1 0.0.0.0?
bgp 100
?router-id 5.5.5.5
?peer 2.2.2.2 as-number 100?
?peer 2.2.2.2 connect-interface LoopBack0
?peer 6.6.6.6 as-number 100?
?peer 6.6.6.6 connect-interface LoopBack0
?ipv4-family vpnv4
? peer 2.2.2.2 enable
? peer 2.2.2.2 next-hop-local?
? peer 6.6.6.6 enable
? peer 6.6.6.6 next-hop-local?
?ipv4-family vpn-instance 2?
? import-route ospf 2
interface GigabitEthernet0/0/2
?ip binding vpn-instance 2
[r6]
route recursive-lookup tunnel
ospf 1 router-id 6.6.6.6?
?area 0.0.0.0?
? network 6.6.6.6 0.0.0.0?
? network 36.1.1.2 0.0.0.0?
? network 46.1.1.2 0.0.0.0?
mpls lsr-id 6.6.6.6
mpls
mpls ldp
g0/0/0和g0/0/1同r2,R5
ip vpn-instance 3
? route-distinguisher 3:3
? vpn-target 3:3 export-extcommunity
? vpn-target 1:1 2:2 import-extcommunity
rip 1 vpn-instance 3
?version 2
?network 68.0.0.0
?import-route bgp
bgp 100
?router-id 6.6.6.6
?peer 2.2.2.2 as-number 100?
?peer 2.2.2.2 connect-interface LoopBack0
?peer 5.5.5.5 as-number 100?
?peer 5.5.5.5 connect-interface LoopBack0
?ipv4-family vpnv4
? policy vpn-target
? peer 2.2.2.2 enable
? peer 2.2.2.2 next-hop-local?
? peer 5.5.5.5 enable
? peer 5.5.5.5 next-hop-local?
?ipv4-family vpn-instance 3?
? import-route rip 1
interface GigabitEthernet0/0/2
?ip binding vpn-instance 3
[r7]
ospf 2 router-id 7.7.7.7?
?area 0.0.0.0?
? network 0.0.0.0 255.255.255.255?
[r8]
rip 1
?version 2
?network 8.0.0.0
?network 68.0.0.0