MPLS VPN实验配置和抓包
文章目录
实验需求：
R1,R3为IBGP关系;R2不配BGP。（MPLS）
R6可以与R4相通；R7可以与R5相通。
实验拓扑图：
配置思路：
1.配置公网地址
2.公网启用ospf
3.配置MPLS域
4.配置 配置PE与PE间MP-BPG邻居关系
5.配置用户网络
6.配置MPLS VPN
7.将BGP和OSPF进行双向重发布
配置公网地址、公网启用ospf，配置MPLS域
R1上配置：
#
interface GigabitEthernet0/0/2
ip address 10.1.12.1 255.255.255.0
mpls
mpls ldp
#
interface NULL0
#
interface LoopBack0
ip address 10.1.1.1 255.255.255.0
#
#
ospf 1 router-id 1.1.1.1
area 0.0.0.0
network 10.1.1.1 0.0.0.0
network 10.1.12.0 0.0.0.255
#
mpls lsr-id 10.1.1.1
mpls
#
mpls ldp
#
R2配置
#
interface GigabitEthernet0/0/0
ip address 10.1.12.2 255.255.255.0
mpls
mpls ldp
#
interface GigabitEthernet0/0/1
ip address 10.1.23.1 255.255.255.0
mpls
mpls ldp
#
interface LoopBack0
ip address 10.2.2.2 255.255.255.0
#
ospf 1 router-id 2.2.2.2
area 0.0.0.0
network 10.1.12.0 0.0.0.255
network 10.1.23.0 0.0.0.255
network 10.2.2.2 0.0.0.0
#
#
mpls lsr-id 10.2.2.2
mpls
#
mpls ldp
#
R3配置与R1配置类似
配置PE与PE间MP-BPG邻居关系（MG-BGP用于传递RT值）
R1配置：
#
bgp 1
router-id 1.1.1.1
peer 10.3.3.3 as-number 1
peer 10.3.3.3 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 10.3.3.3 enable
#
ipv4-family vpnv4
policy vpn-target
peer 10.3.3.3 enable
peer 10.3.3.3 advertise-community
#
R3与R1类似
配置MPLS VPN
用户端正常启用OSPF进程
PE端使用VRF技术
R1配置：
#
ip vpn-instance a
ipv4-family
route-distinguisher 1:1
vpn-target 100:1 export-extcommunity
vpn-target 100:1 import-extcommunity
#
ip vpn-instance b
ipv4-family
route-distinguisher 2:2
vpn-target 200:2 export-extcommunity
vpn-target 200:2 import-extcommunity
#
#
interface GigabitEthernet0/0/0
ip binding vpn-instance a
ip address 10.1.14.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip binding vpn-instance b
ip address 10.1.15.2 255.255.255.0
#
#
ospf 2 router-id 1.1.1.1 vpn-instance a
import-route bgp
area 0.0.0.0
network 10.1.14.0 0.0.0.255
#
ospf 3 router-id 1.1.1.1 vpn-instance b
import-route bgp
area 0.0.0.0
network 10.1.15.0 0.0.0.255
#
将BGP和OSPF进行双向重发布
R1配置：
#
ipv4-family vpn-instance a
import-route ospf 2
#
ipv4-family vpn-instance b
import-route ospf 3
#
#
ospf 2 router-id 1.1.1.1 vpn-instance a
import-route bgp
#
ospf 3 router-id 1.1.1.1 vpn-instance b
import-route bgp
测试：
附：
R1全部配置：
<R1>dis current-configuration
[V200R003C00]
#
sysname R1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
drop illegal-mac alarm
#
wlan ac-global carrier id other ac id 0
#
set cpu-usage threshold 80 restore 75
#
ip vpn-instance a
ipv4-family
route-distinguisher 1:1
vpn-target 100:1 export-extcommunity
vpn-target 100:1 import-extcommunity
#
ip vpn-instance b
ipv4-family
route-distinguisher 2:2
vpn-target 200:2 export-extcommunity
vpn-target 200:2 import-extcommunity
#
mpls lsr-id 10.1.1.1
mpls
#
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 binding vpn-instance a
ip address 10.1.14.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip binding vpn-instance b
ip address 10.1.15.2 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address 10.1.12.1 255.255.255.0
mpls
mpls ldp
#
interface NULL0
#
interface LoopBack0
ip address 10.1.1.1 255.255.255.0
#
bgp 1
router-id 1.1.1.1
peer 10.3.3.3 as-number 1
peer 10.3.3.3 connect-interface LoopBack0
#
ipv4-family unicast
undo synchronization
peer 10.3.3.3 enable
#
ipv4-family vpnv4
policy vpn-target
peer 10.3.3.3 enable
peer 10.3.3.3 advertise-community
#
ipv4-family vpn-instance a
import-route ospf 2
#
ipv4-family vpn-instance b
import-route ospf 3
#
ospf 1 router-id 1.1.1.1
area 0.0.0.0
network 10.1.1.1 0.0.0.0
network 10.1.12.0 0.0.0.255
#
ospf 2 router-id 1.1.1.1 vpn-instance a
import-route bgp
area 0.0.0.0
network 10.1.14.0 0.0.0.255
#
ospf 3 router-id 1.1.1.1 vpn-instance b
import-route bgp
area 0.0.0.0
network 10.1.15.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
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