目录
实验要求
划分IP地址
首先对MPLSVPN骨干网络进行配置
首先配置IP地址
启动IGP协议
激活MPLS和LDP
VRF空间的创建
将接口划入到VRF空间中
R1和R5通过静态路由在CE和PE上配置
建立MP-BGP
对站点R1和R5进行配置
首先把IP给配置好
在VRF空间中发布路由信息
对站点R6和R7进行配置
首先把IP给配置好
CE和PE设备之间动态路由传递
双向重发布的建立
实验要求
1,R1和R5是客户A两个站点的CE设备,R6和R7是客户b两个站点的CE设备。通过MPLSVPN骨干网络分别连接不同客户的不同站点
2,R1和R5采用静态路由的方式传递私网路由;R6通过RIP将私网路由传递给PE设备;R7通过OSPF将私网路由传递给PE设备
3,R7单独拉一根网线保证可以访问公网,R7可以访问R2/R3/R4环回
划分IP地址
如何我们按区域进行划分
首先对MPLSVPN骨干网络进行配置
首先配置IP地址
因为我们等下还要创建VRF将接口划入VRF时会移除所配置的IP因此等下配置需要划分到VRF的接口
[r2]int l0
[r2-LoopBack0]ip add 2.2.2.2 24
[r2-LoopBack0]int g0/0/2
[r2-GigabitEthernet0/0/2]ip add 23.0.0.1 24
[r3]int l0
[r3-LoopBack0]ip add 3.3.3.3 24
[r3-LoopBack0]int g0/0/0
[r3-GigabitEthernet0/0/0]ip add 23.0.0.2 24
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]ip add 34.0.0.1 24
[r4]int l0
[r4-LoopBack0]ip add 4.4.4.4 24
[r4-LoopBack0]int g0/0/0
[r4-GigabitEthernet0/0/0]ip ad 34.0.0.2 24
[r4-GigabitEthernet0/0/0]int g4/0/0
[r4-GigabitEthernet4/0/0]ip add 47.0.0.1 24
启动IGP协议
这里我们选用ospf
[r2]ospf 1 rou
[r2]ospf 1 router-id 2.2.2.2
[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 23.0.0.0 0.0.0.255
[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 23.0.0.0 0.0.0.255
[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]a 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 34.0.0.0 0.0.0.255
此时骨干已通
激活MPLS和LDP
[r2]mpls lsr-id 2.2.2.2
[r2]mpls
Info: Mpls starting, please wait... OK!
[r2-mpls]mpls ldp
[r2-mpls-ldp]int g0/0/2
[r2-GigabitEthernet0/0/2]mpls
[r2-GigabitEthernet0/0/2]mpls ldp
[r3]mpls lsr-id 3.3.3.3
[r3]mpls
Info: Mpls starting, please wait... OK!
[r3-mpls]mpls ldp
[r3-mpls-ldp]int g0/0/0
[r3-GigabitEthernet0/0/0]mpls
[r3-GigabitEthernet0/0/0]mpls ldp
[r3-GigabitEthernet0/0/0]int g0/0/1
[r3-GigabitEthernet0/0/1]mpls
[r3-GigabitEthernet0/0/1]mpls ldp
[r4]mpls lsr-id 4.4.4.4
[r4]mpls
Info: Mpls starting, please wait... OK!
[r4-mpls]mpls ldp
[r4-mpls-ldp]int g0/0/0
[r4-GigabitEthernet0/0/0]mpls
[r4-GigabitEthernet0/0/0]mpls ldp
此时LDP对等体已成功建立
VRF空间的创建
[r2]ip vpn-instance a
[r2-vpn-instance-a]route-distinguisher 100:1
[r2-vpn-instance-a-af-ipv4]vpn-target 100:1 export-extcommunity
[r2-vpn-instance-a-af-ipv4]vpn-target 100:2 import-extcommunity
[r2-vpn-instance-a-af-ipv4]q
[r2-vpn-instance-a]q
[r2]ip vpn-instance b
[r2-vpn-instance-b]route-distinguisher 200:1
[r2-vpn-instance-b-af-ipv4]vpn-target 200:1 export-extcommunity
[r2-vpn-instance-b-af-ipv4]vpn-target 200:2 import-extcommunity
[r4]ip vpn-instance a
[r4-vpn-instance-a]route-distinguisher 100:1
[r4-vpn-instance-a-af-ipv4]vpn-target 100:2 export-extcommunity
[r4-vpn-instance-a-af-ipv4]vpn-target 100:1 import-extcommunity
[r4-vpn-instance-a-af-ipv4]q
[r4-vpn-instance-a]q
[r4]ip vpn-instance b
[r4-vpn-instance-b]route-distinguisher 200:1
[r4-vpn-instance-b-af-ipv4]vpn-target 200:2 export-extcommunity
[r4-vpn-instance-b-af-ipv4]vpn-target 200:1 import-extcommunity
两者的出入站RT值需要对应相同
将接口划入到VRF空间中
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip binding vpn-instance a
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r2-GigabitEthernet0/0/0]int g0/0/1
[r2-GigabitEthernet0/0/1]ip binding vpn-instance b
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r4]int g0/0/1
[r4-GigabitEthernet0/0/1]ip binding vpn-instance a
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
[r4-GigabitEthernet0/0/1]int g0/0/2
[r4-GigabitEthernet0/0/2]ip binding vpn-instance b
Info: All IPv4 related configurations on this interface are removed!
Info: All IPv6 related configurations on this interface are removed!
此时我们便可以对剩余的这些接口配置IP地址
[r2-GigabitEthernet0/0/1]ip add 192.168.4.2 24
[r2-GigabitEthernet0/0/1]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 192.168.2.2 24
[r4-GigabitEthernet0/0/2]ip add 192.168.6.2 24
[r4-GigabitEthernet0/0/0]int g0/0/1
[r4-GigabitEthernet0/0/1]ip add 192.168.3.1 24
R1和R5通过静态路由在CE和PE上配置
[r1]ip route-static 192.168.3.0 24 192.168.2.2
[r1]ip route-static 192.168.4.0 24 192.168.2.2
[r2]ip route-static vpn-instance a 192.168.1.0 24 192.168.2.1
[r4]ip route-static vpn-instance a 192.168.4.0 24 192.168.3.2
[r5]ip route-static 192.168.1.0 24 192.168.3.1
[r5]ip route-static 192.168.2.0 24 192.168.3.1
建立MP-BGP
首先R2和R4建立IBGP
[r2]bgp 1
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 4.4.4.4 as-number 1
[r2-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[r2-bgp]peer 4.4.4.4 next-hop-local
[r4]bgp 1
[r4-bgp]router-id 4.4.4.4
[r4-bgp]peer 2.2.2.2 as-number 1
[r4-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[r4-bgp]peer 2.2.2.2 next-hop-local
在BGP基础上建立MP-BGP
[r2-bgp]ipv4-family vpnv4
[r2-bgp-af-vpnv4]peer 4.4.4.4 enable
[r4-bgp]ipv4-family vpnv4
[r4-bgp-af-vpnv4]peer 2.2.2.2 enable
此时建立完成
对站点R1和R5进行配置
首先把IP给配置好
[r1]int l0
[r1-LoopBack0]ip add 192.168.1.1 24
[r1-LoopBack0]int g0/0/0
[r1-GigabitEthernet0/0/0]ip add 192.168.2.1 24
[r5]int l0
[r5-LoopBack0]ip add 192.168.4.1 24
[r5-LoopBack0]int g0/0/0
[r5-GigabitEthernet0/0/0]ip add 192.168.3.2 24
在VRF空间中发布路由信息
[r2]bgp 1
[r2-bgp]ipv4-family vpn-instance a
[r2-bgp-a]import-route direct
[r2-bgp-a]import-route static
[r4]bgp 1
[r4-bgp]ipv4-family vpn-instance a
[r4-bgp-a]import-route direct
[r4-bgp-a]import-route static
对站点R6和R7进行配置
首先把IP给配置好
[r6]int l0
[r6-LoopBack0]ip add 192.168.5.1 24
[r6-LoopBack0]int g0/0/0
[r6-GigabitEthernet0/0/0]ip add 192.168.24.1 24
[r7]int l0
[r7-LoopBack0]ip add 192.168.7.1 24
[r7-LoopBack0]int g0/0/0
[r7-GigabitEthernet0/0/0]ip add 192.168.6.1 24
[r7-GigabitEthernet0/0/1]ip add 47.0.0.2 24
CE和PE设备之间动态路由传递
R6和R2配置RIP
[r2]rip 1 vpn-instance b
[r2-rip-1]v 2
[r2-rip-1]network 192.168.4.0
[r6]rip 1
[r6-rip-1]v 2
[r6-rip-1]network 192.168.4.0
[r6-rip-1]network 192.168.5.0
R7和R4配置ospf
[r4]ospf 2 vpn-instance b router-id 4.4.4.4
[r4-ospf-2]area 0
[r4-ospf-2-area-0.0.0.0]network 192.168.6.0 0.0.0.25
[r7]ospf 2 router-id 7.7.7.7
[r7-ospf-2]a 0
[r7-ospf-2-area-0.0.0.0]network 192.168.6.0 0.0.0.255
[r7-ospf-2-area-0.0.0.0]network 192.168.7.0 0.0.0.255
双向重发布的建立
[r2]bgp 1
[r2-bgp]ipv4-family vpn-instance b
[r2-bgp-b]import-route rip 1
[r2]rip 1
[r2-rip-1]import-route bgp
[r4]bgp 1
[r4-bgp]ipv4-family vpn-instance b
[r4-bgp-b]import-route ospf 2
[r4-bgp-b]ospf 2
[r4-ospf-2]import-route bgp
此时便建立成功
最后写一条静态路由来使得R7可以和R234的环回相通
[r7]ip route-static 0.0.0.0 0 47.0.0.1
检查如下