实验要求
1.如图连接拓扑，合理规划IP地址，R1、R5、R6、R7各种创建一个环回，IP地址分别为192.168.1.0 、192.168.2.0、192.168.3.0、192.168.4.0
2.AS 100内使用IGP协议为OSPF ，如图运行动态路由协议
3.要求R1-R5之间启用MPLS VPN ； R6-R7之间启用MPLS VPN；
4.将两条VPN 进行合并
5.R6-R7之间使用OSPF协议，要求R6-R7之间的私有IP地址通信优先使用MPLS
实验拓扑搭建
相关配置
AR1
interface GigabitEthernet0/0/0
ip address 12.1.1.1 255.255.255.0
interface GigabitEthernet0/0/1
interface GigabitEthernet0/0/2
interface NULL0
interface LoopBack0
ip address 192.168.1.1 255.255.255.255
interface LoopBack1
rip 100
undo summary
version 2
network 12.0.0.0
network 192.168.1.0
AR2
ip vpn-instance a
ipv4-family
route-distinguisher 100:1
vpn-target 100:1 1:1 export-extcommunity
vpn-target 100:1 1:1 import-extcommunity
ip vpn-instance b
ipv4-family
route-distinguisher 100:2
vpn-target 100:2 1:1 export-extcommunity
vpn-target 100:2 1:1 import-extcommunity
mpls lsr-id 2.2.2.2
mpls
lsp-trigger all
mpls ldp
interface GigabitEthernet0/0/0
ip binding vpn-instance b
ip address 12.1.1.2 255.255.255.0
interface GigabitEthernet0/0/1
ip binding vpn-instance a
ip address 26.1.1.2 255.255.255.0
interface GigabitEthernet0/0/2
ip address 23.1.1.1 255.255.255.0
mpls
mpls ldp
interface NULL0
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
ospf network-type broadcast
interface LoopBack1
ip binding vpn-instance a
ip address 10.1.1.1 255.255.255.255
bgp 100
router-id 2.2.2.2
peer 4.4.4.4 as-number 100
peer 4.4.4.4 connect-interface LoopBack0
ipv4-family unicast
undo synchronization
peer 4.4.4.4 enable
peer 4.4.4.4 next-hop-local
ipv4-family vpnv4
policy vpn-target
peer 4.4.4.4 enable
peer 4.4.4.4 advertise-community
ipv4-family vpn-instance a
network 10.1.1.1 255.255.255.255
import-route ospf 200
ipv4-family vpn-instance b
import-route rip 100
ospf 1
ospf 100
area 0.0.0.0
network 2.2.2.2 0.0.0.0
network 23.1.1.1 0.0.0.0
ospf 200 router-id 92.2.2.2 vpn-instance a
import-route bgp
area 0.0.0.0
network 26.1.1.2 0.0.0.0
sham-link 10.1.1.1 10.1.1.2
rip 100 vpn-instance b
version 2
network 12.0.0.0
import-route bgp
route recursive-lookup tunnel
AR3
interface GigabitEthernet0/0/0
ip address 34.1.1.1 255.255.255.0
mpls
mpls ldp
interface GigabitEthernet0/0/1
interface GigabitEthernet0/0/2
ip address 23.1.1.2 255.255.255.0
mpls
mpls ldp
interface NULL0
interface LoopBack0
ip address 3.3.3.3 255.255.255.255
ospf network-type broadcast
ospf 1
ospf 100
area 0.0.0.0
network 3.3.3.3 0.0.0.0
network 23.1.1.2 0.0.0.0
network 34.1.1.1 0.0.0.0
AR4
ip vpn-instance a
ipv4-family
route-distinguisher 100:1
vpn-target 100:1 1:1 export-extcommunity
vpn-target 100:1 1:1 import-extcommunity
ip vpn-instance b
ipv4-family
route-distinguisher 100:2
vpn-target 100:2 1:1 export-extcommunity
vpn-target 100:2 1:1 import-extcommunity
mpls lsr-id 4.4.4.4
mpls
lsp-trigger all
mpls ldp
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %
%
K8m.Nt84DZ}e#<0`8bmE3Uw}%
%
local-user admin service-type http
firewall zone Local
priority 15
interface GigabitEthernet0/0/0
ip address 34.1.1.2 255.255.255.0
mpls
mpls ldp
interface GigabitEthernet0/0/1
ip binding vpn-instance b
ip address 45.1.1.2 255.255.255.0
interface GigabitEthernet0/0/2
ip binding vpn-instance a
ip address 47.1.1.2 255.255.255.0
interface NULL0
interface LoopBack0
ip address 4.4.4.4 255.255.255.255
ospf network-type broadcast
interface LoopBack1
ip binding vpn-instance a
ip address 10.1.1.2 255.255.255.255
bgp 100
router-id 4.4.4.4
peer 2.2.2.2 as-number 100
peer 2.2.2.2 connect-interface LoopBack0
peer 45.1.1.1 as-number 5
peer 47.1.1.1 as-number 7
ipv4-family unicast
undo synchronization
peer 2.2.2.2 enable
peer 2.2.2.2 next-hop-local
peer 45.1.1.1 enable
peer 47.1.1.1 enable
ipv4-family vpnv4
policy vpn-target
peer 2.2.2.2 enable
ipv4-family vpn-instance a
network 10.1.1.2 255.255.255.255
import-route ospf 200
ipv4-family vpn-instance b
import-route rip 100
ospf 100
area 0.0.0.0
network 4.4.4.4 0.0.0.0
network 34.1.1.2 0.0.0.0
ospf 200 router-id 94.4.4.4 vpn-instance a
import-route bgp
area 0.0.0.0
network 47.1.1.2 0.0.0.0
sham-link 10.1.1.2 10.1.1.1
rip 100 vpn-instance b
version 2
network 45.0.0.0
import-route bgp
route recursive-lookup tunnel
AR5
interface GigabitEthernet0/0/0
interface GigabitEthernet0/0/1
ip address 45.1.1.1 255.255.255.0
interface GigabitEthernet0/0/2
interface NULL0
interface LoopBack0
ip address 192.168.2.1 255.255.255.255
rip 100
undo summary
version 2
network 45.0.0.0
network 192.168.2.0
AR6
interface GigabitEthernet0/0/0
ip address 67.1.1.1 255.255.255.0
ospf cost 5
interface GigabitEthernet0/0/1
ip address 26.1.1.1 255.255.255.0
interface GigabitEthernet0/0/2
interface NULL0
interface LoopBack0
ip address 192.168.3.1 255.255.255.255
ospf 1
import-route ospf 200
area 0.0.0.0
network 67.1.1.1 0.0.0.0
ospf 200
area 0.0.0.0
network 26.1.1.1 0.0.0.0
network 192.168.3.1 0.0.0.0
AR7
interface GigabitEthernet0/0/0
ip address 67.1.1.2 255.255.255.0
ospf cost 5
interface GigabitEthernet0/0/1
interface GigabitEthernet0/0/2
ip address 47.1.1.1 255.255.255.0
interface NULL0
interface LoopBack0
ip address 192.168.4.1 255.255.255.255
ospf 1
import-route ospf 200
area 0.0.0.0
network 67.1.1.2 0.0.0.0
ospf 200
area 0.0.0.0
network 47.1.1.1 0.0.0.0
network 192.168.4.1 0.0.0.0
测试
AS 100内使用IGP协议为OSPF ，R2/R3/R4邻居关系
要求R1-R5之间启用MPLS VPN ； R6-R7之间启用MPLS VPN；
将两条VPN 进行合并R1/R5/R6/R7之间可以相互访问
R6-R7之间使用OSPF协议，要求R6-R7之间的私有IP地址通信优先使用MPLS
