【网络】MPLS实验

题目

一、实验拓扑

二、实验需求

1、R1与R5MPLS VPN
2、R6与R7MPLS VPN
3、R7可以访问R2/3/4的环回

三、实验思路

ISP部分

1.IGP路由  

2.MPLS域

3.配置MPLS VPN

4.PE与PE间建立MP-BPG邻居关系

5.CE端与PE端交互路由

6.双向重发布，实现路由共享

四、实验步骤

1.IGP路由  

[r2]ospf 1 router-id 2.2.2.2	
[r2-ospf-1]area 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]area 0
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 23.1.1.2 0.0.0.0	
[r3-ospf-1-area-0.0.0.0]network 34.1.1.1 0.0.0.0
	
[r4]ospf 1 router-id 4.4.4.4	
[r4-ospf-1]area 0	
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[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 47.1.1.1 0.0.0.0

[r7]ospf 1 router-id 192.168.4.2
[r7-ospf-1]area 0
[r7-ospf-1-area-0.0.0.0]network 47.1.1.2 0.0.0.0

2.MPLS域

[r2]mpls lsr-id 2.2.2.2	
[r2]mpls
[r2-mpls]mpls ldp
[r2-mpls-ldp]int g 0/0/0
[r2-GigabitEthernet0/0/0]mpls 
[r2-GigabitEthernet0/0/0]mpls ldp

[r3]mpls lsr-id 3.3.3.3
[r3]mpls 
[r3-mpls]mpls ldp
[r3-mpls-ldp]int g0/0/1
[r3-GigabitEthernet0/0/1] mpls
[r3-GigabitEthernet0/0/1] mpls ldp
[r3-GigabitEthernet0/0/1]int g 0/0/0
[r3-GigabitEthernet0/0/0] mpls
[r3-GigabitEthernet0/0/0] mpls ldp

[r4]mpls lsr-id 4.4.4.4
[r4]mpls	
[r4-mpls]mpls ldp
[r4-mpls-ldp]int g 0/0/1
[r4-GigabitEthernet0/0/1]mpls
[r4-GigabitEthernet0/0/1]mpls ldp

3.配置MPLS VPN，做VRF空间

[r2]ip vpn-instance b1
[r2-vpn-instance-b1]ipv4-family 
[r2-vpn-instance-b1-af-ipv4]route-distinguisher 1:1
[r2-vpn-instance-b1-af-ipv4]vpn-target 1:1
[r2-vpn-instance-b1-af-ipv4]int g 0/0/1
[r2-GigabitEthernet0/0/1]ip binding vpn-instance b1
[r2-GigabitEthernet0/0/1]ip address 192.168.2.1 24
[r2-GigabitEthernet0/0/1]q
[r2]
[r2]ip vpn-instance a1
[r2-vpn-instance-a1]ipv4-family 
[r2-vpn-instance-a1-af-ipv4]route-distinguisher 2:2
[r2-vpn-instance-a1-af-ipv4]vpn-target 2:2
[r2-vpn-instance-a1-af-ipv4]int g 0/0/2
[r2-GigabitEthernet0/0/2]ip binding vpn-instance a1	
[r2-GigabitEthernet0/0/2]ip address 192.168.2.1 24

[r4]ip vpn-instance b2	
[r4-vpn-instance-b2]ipv4-family 
[r4-vpn-instance-b2-af-ipv4]route-distinguisher 1:1
[r4-vpn-instance-b2-af-ipv4]vpn-target 1:1
[r4-vpn-instance-b2-af-ipv4]int g 0/0/0
[r4-GigabitEthernet0/0/0]ip binding vpn-instance b2
[r4-GigabitEthernet0/0/0]ip address 192.168.3.1 24
[r4-GigabitEthernet0/0/0]q
[r4]
[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
[r4-vpn-instance-a2-af-ipv4]int g 4/0/0
[r4-GigabitEthernet4/0/0]ip binding vpn-instance a2
[r4-GigabitEthernet4/0/0]ip address 192.168.3.1 24

4.PE与PE间建立MP-BPG邻居关系

[r2]bgp 1
[r2-bgp]router-id 2.2.2.2
[r2-bgp]pe 4.4.4.4 as-number 2 
[r2-bgp]pe 4.4.4.4 connect-interface LoopBack 0
[r2-bgp]pe 4.4.4.4 next-hop-local     
[r2-bgp]ipv4-family vpnv4 
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable

[r4]bgp 1
[r4-bgp]router-id 4.4.4.4
[r4-bgp]pe 2.2.2.2 as-number 2 
[r4-bgp]pe 2.2.2.2 connect-interface LoopBack 0
[r4-bgp]pe 2.2.2.2 next-hop-local     
[r4-bgp]ipv4-family vpnv4 
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable

5.CE端与PE端交互路由，双向重发布，实现路由共享

#r1静态路由
ip route-static 192.168.3.0 255.255.255.0 192.168.2.1
ip route-static 192.168.4.0 255.255.255.0 192.168.2.1
#

[r2]ip route-static vpn-instance b1 192.168.1.0 24 192.168.2.2
[r2]bgp 1
[r2-bgp]ipv4 vpn-instance b1
[r2-bgp-a]import-route direct 
[r2-bgp-a]import-route static

#r5静态路由
ip route-static 192.168.1.0 255.255.255.0 192.168.3.1
ip route-static 192.168.2.0 255.255.255.0 192.168.3.1
#

[r4]ip route-static vpn-instance b2 192.168.4.0 24 192.168.3.2
[r4]bgp 1
[r4-bgp]ipv4 vpn-instance b2
[r4-bgp-a]import-route direct 
[r4-bgp-a]import-route static

[r6]
rip 1
 version 2
 network 192.168.1.0
 network 192.168.2.0

[r2]
rip 1 vpn-instance a1
 version 2
 network 192.168.2.0
 import-route bgp
#
bgp 1
 ipv4-family vpn-instance a1 
  import-route rip 1


[r7]
ospf 2 router-id 7.7.7.7 
 area 0.0.0.0 
  network 192.168.3.2 0.0.0.0 
  network 192.168.4.2 0.0.0.0 

[r4]
ospf 2 vpn-instance a2
 area 0.0.0.0 
  network 192.168.3.1 0.0.0.0 
 import-route bgp
#
bgp 1
 ipv4-family vpn-instance a2 
  import-route ospf 2

6.NAT

[r7]
acl number 2000  
 rule 5 permit source 192.168.4.0 0.0.0.255 
#
interface GigabitEthernet0/0/0
 nat outbound 2000

ip route-static 0.0.0.0 0.0.0.0 47.1.1.1