bgp mpls vpn综合实验

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1、BGPMPLSVPN综合实验实验拓扑如下：一、实验背景：其中R1,R2,R3为某运营商网络中的PE-P-PE设备，R1/R2/R3运行OSPF协议打通IBGP路由，承载MPLSVPN业务；其中R1,R2,R3为一个MPLS域；R4,R5,R6,R7模拟客户的CE设备；R4与R6为同一个VPN站点：SITE-A,R5与R7为同一个VPN站点SITE-B二、PE与CE间的路由方式：R1与R4采用OSPF+VPN多实例，R1与R5采用EBGPR3与R6采用静态路由方式R3与R7采用EBGP三、IP地址规划：R1E0/0

2、/0:192.168.1.1/30LOOPBACK：1.1.1.1/32E0/0/1:192.168.3.1/30G0/0/0:192.168.4.1/30R2E0/0/0:192.168.1.2/30E0/0/1:192.168.2.1/30LOOPBACK:2.2.2.2/32R3E0/0/0:192.168.2.2/30LOOPBACK:3.3.3.3/32E0/0/1:192.168.5.1/30G0/0/0:192.168.6.1/30R4E0/0/0:192.168.3.2/30LOOPBACK:4.

3、4.4.4/32R5E0/0/0:192.168.4.2/30LOOPBACK:5.5.5.5/32R6E0/0/0:192.168.5.2/30LOOPBACK:6.6.6.6/32R7E0/0/0:192.168.6.1/30LOOPBACK:7.7.7.7/32四、实验需求：按照要求完成本实验，业务验证：同一VPN站点的CE能够互访；并能够熟练掌握查看VPN路由信息；配置步骤：1.首先配置各设备的IP地址(略)2.完成R1-R2-R3之间的OSPF配置；R1ospf1area0.0.0.0network19

4、2.168.1.00.0.0.3network1.1.1.10.0.0.0R2ospf1area0.0.0.0network192.168.1.00.0.0.3network2.2.2.20.0.0.0network192.168.2.00.0.0.3R3ospf1area0.0.0.0network192.168.2.00.0.0.3network3.3.3.30.0.0.03.完成R1-R3的IBGP配置R1bgp100peer3.3.3.3as-number100peer3.3.3.3connect-int

5、erfaceLoopBack0#ipv4-familyunicastundosynchronizationpeer3.3.3.3enableR3bgp100peer1.1.1.1as-number100peer1.1.1.1connect-interfaceLoopBack0#ipv4-familyunicastundosynchronizationpeer1.1.1.1enable注解：由于这里BGP承载的业务为MPLSVPN业务，R1-R3之间不必要建立IBGP邻居，只是为了方便大家类似学习配置BGPVPNV

6、4PEER,所以我们开始配置BGPVPNPEERR1:ipv4-familyvpnv4policyvpn-targetpeer3.3.3.3enableR3:ipv4-familyvpnv4policyvpn-targetpeer1.1.1.1enable配置完成后要查看BGPVPNV4PEER的建立情况，查看的命令如下：[R1-bgp]displaybgpvpnv4allpeerBGPlocalrouterID:192.168.1.1LocalASnumber:100Totalnumberofpeers:1Pe

7、ersinestablishedstate:1PeerVASMsgRcvdMsgSentOutQUp/DownStatePrefRcv3.3.3.34100200201003:18:14Established1.完成PE与CE（R1-R5）之间的VPN配置；在R1上创建VPN实例（VRF）ipvpn-instancesite-aipv4-familyroute-distinguisher20:20vpn-target10:10export-extcommunityvpn-target10:10import-ext

8、community#ipvpn-instancesite-bipv4-familyroute-distinguisher30:30vpn-target40:40export-extcommunityvpn-target40:40import-extcommunity在端口进行绑定VPN实例：interfaceGigabitEthernet0/0/0ipbindingvpn