OSPF实验

 配置IP地址

 

 

 

 

 

 配置左边区域的ospf路由

[R1]ospf 10 router-id 1.1.1.1

[R1-ospf-10]area 0

[R1-ospf-10-area-0.0.0.0]network 123.1.1.1 0.0.0.0  

[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0

[R2]ospf 10 router-id 2.2.2.2

[R2-ospf-10]area 0

[R2-ospf-10-area-0.0.0.0]network 123.1.1.20.0.0.0

[R2-ospf-10-area-0.0.0.0]network 2.2.2.2 0.0.0.0

[R3]ospf 10 router-id 3.3.3.3

[R3-ospf-10]area 0

[R3-ospf-10-area-0.0.0.0]network 3.3.3.3 0.0.0.0

[R3-ospf-10-area-0.0.0.0]network 123.1.1.3 0.0.0.0

配置缺省指向ISP:[R3]IP route-static 0.0.0.0 0 34.0.0.2

实现私网可以上网，需要在边界设备做一个nat：

[R3]acl 2000

[R3-acl-basic-2000]rule permit source any

[R3-acl-basic-2000]int g 0/0/1

[R3-GigabitEthernet0/0/1]nat outbound 2000

搭建MGRE隧道

[R6-Tunnel0/0/0]ip add 10.0.0.6 24    

[R6-Tunnel0/0/0]tunnel-protocol gre p2mp

[R6-Tunnel0/0/0]source GigabitEthernet 0/0/0

[R6-Tunnel0/0/0]nhrp entry multicast dynamic

[R8-Tunnel0/0/0]ip add 10.0.0.8 24

[R8-Tunnel0/0/0]tunnel-protocol gre p2mp

[R8-Tunnel0/0/0]source GigabitEthernet 0/0/0

[R8-Tunnel0/0/0]nhrp entry 10.0.0.6 67.0.0.1 register

[R10-Tunnel0/0/0]ip add 10.0.0.10 24

[R10-Tunnel0/0/0]tunnel-protocol gre p2mp

[R10-Tunnel0/0/0]source GigabitEthernet 0/0/0

[R10-Tunnel0/0/0]nhrp entry 10.0.0.6 67.0.0.1 register

[R12-Tunnel0/0/0]ip add 10.0.0.12 24

[R12-Tunnel0/0/0]tunnel-protocol gre p2mp

[R12-Tunnel0/0/0]source GigabitEthernet 0/0/0

[R12-Tunnel0/0/0]nhrp entry 10.0.0.6 67.0.0.1 register

配置MGRE环境中的静态路由

[R6]ip route-static 78.0.0.0 24 67.0.0.2

[R6]ip route-static 117.0.0.0 24 67.0.0.2

[R6]ip route-static 107.0.0.0 24 67.0.0.2

[R8]ip route-static 67.0.0.0 24 78.0.0.1

[R8]ip route-static 107.0.0.0 24 78.0.0.1

[R8]ip route-static 117.0.0.0 24 78.0.0.1

[R10]ip route-static 67.0.0.0 24 107.0.0.1

[R10]ip route-static 117.0.0.0 24 107.0.0.1

[R10]ip route-static 78.0.0.0 24 107.0.0.1

[R12]ip route-static 67.0.0.0 24 117.0.0.1

[R12]ip route-static 78.0.0.0 24 117.0.0.1

[R12]ip route-static 107.0.0.0 24 117.0.0.1

  查看R6的注册表信息

  

启动右边区域的ospf协议

[R5]ospf 1 router-id 5.5.5.5

[R5-ospf-1]area 0

[R5-ospf-1-area-0.0.0.0]network 56.0.0.1 0.0.0.0

[R5-ospf-1-area-0.0.0.0]network 5.5.5.5 0.0.0.0

[R6]ospf 1 router-id 6.6.6.6

[R6-ospf-1]area 0

[R6-ospf-1-area-0.0.0.0]network 56.0.0.2 0.0.0.0

[R6-ospf-1-area-0.0.0.0]network 6.6.6.6 0.0.0.0

[R6-ospf-1-area-0.0.0.0]network 10.0.0.6 0.0.0.0

[R8]ospf 1 router-id 8.8.8.8

[R8-ospf-1]area 0

[R8-ospf-1-area-0.0.0.0]network 89.0.0.1 0.0.0.0

[R8-ospf-1-area-0.0.0.0]network 8.8.8.8  0.0.0.0

[R8-ospf-1-area-0.0.0.0]network 10.0.0.8 0.0.0.0

[R9]ospf 1 router-id 9.9.9.9

[R9-ospf-1]area 0

[R9-ospf-1-area-0.0.0.0]network 89.0.0.2 0.0.0.0

[R9-ospf-1-area-0.0.0.0]network 9.9.9.9  0.0.0.0

[R10]ospf 1 router-id 10.10.10.10

[R10-ospf-1]area 0

[R10-ospf-1-area-0.0.0.0]network 110.0.0.1 0.0.0.0

[R10-ospf-1-area-0.0.0.0]network 10.10.10.10 0.0.0.0

[R10-ospf-1-area-0.0.0.0]network 10.0.0.10 0.0.0.0

[R12]ospf 1 router-id 12.12.12.12

[R12-ospf-1]area 0

[R12-ospf-1-area-0.0.0.0]network 112.0.0.1 0.0.0.0

[R12-ospf-1-area-0.0.0.0]network 12.12.12.12 0.0.0.0

[R12-ospf-1-area-0.0.0.0]network 10.0.0.12 0.0.0.0

[R11]ospf 1 router-id 11.11.11.11

[R11-ospf-1]area 0

[R11-ospf-1-area-0.0.0.0]network 110.0.0.2 0.0.0.0

[R11-ospf-1-area-0.0.0.0]network 11.11.11.11 0.0.0.0

[R11-ospf-1]area 1

[R11-ospf-1-area-0.0.0.1]network 114.0.0.1 0.0.0.0

[R14]ospf 1 router-id 14.14.14.14

[R14-ospf-1]area 1

[R14-ospf-1-area-0.0.0.1]network 14.14.14.14 0.0.0.0

[R14-ospf-1-area-0.0.0.1]network 145.0.0.1 0.0.0.0

[R14-ospf-1-area-0.0.0.1]network 114.0.0.2 0.0.0.0

[R15]ospf 1 router-id 15.15.15.15

[R15-ospf-1]area 1

[R15-ospf-1-area-0.0.0.1]network 145.0.0.2 0.0.0.0

[R15-ospf-1-area-0.0.0.1]network 15.15.15.15 0.0.0.0

[R13]ospf 1 router-id 13.13.13.13

[R13-ospf-1]area 0

[R13-ospf-1-area-0.0.0.0]network 112.0.0.2 0.0.0.0

[R13-ospf-1-area-0.0.0.0]network 13.13.13.13 0.0.0.0

[R13-ospf-1]area 2

[R13-ospf-1-area-0.0.0.2]network 136.0.0.1 0.0.0.0

[R16]ospf 1 router-id 16.16.16.16

[R16-ospf-1]area 2

[R16-ospf-1-area-0.0.0.2]network 136.0.0.2 0.0.0.0

[R16-ospf-1-area-0.0.0.2]network 16.16.16.16 0.0.0.0

修改隧道接口类型为p2mp（因为该网络接口类型的hello时间过长，修改hello时间为10s）

[R6-Tunnel0/0/0]ospf network-type p2mp

[R8-Tunnel0/0/0]ospf network-type p2mp

[R10-Tunnel0/0/0]ospf network-type p2mp

[R12-Tunnel0/0/0]ospf network-type p2mp

[R6-Tunnel0/0/0]ospf timer hello 10

[R8-Tunnel0/0/0]ospf timer hello 10

[R10-Tunnel0/0/0]ospf timer hello 10

[R12-Tunnel0/0/0]ospf timer hello 10

查看邻居表 

R5下发缺省

[R5-ospf-1]default-route-advertise always

实现私网可以上网，需要在边界设备R5做一个nat：

[R5]acl 2000

[R5-acl-basic-2000]rule permit source any

[R5-acl-basic-2000]int g 0/0/0

[R5-GigabitEthernet0/0/0]nat outbound 2000

模拟上网，使用环回测试：

让ISP两边的区域进行互通：

      R3和R5之间做一个GRE隧道

[R3-Tunnel0/0/1]ip add 20.0.0.3 24

[R3-Tunnel0/0/1]tunnel-protocol gre

[R3-Tunnel0/0/1]source 34.0.0.1

[R3-Tunnel0/0/1]destination 45.0.0.2

[R5-Tunnel0/0/1]ip add 20.0.0.5 24

[R5-Tunnel0/0/1]tunnel-protocol gre

[R5-Tunnel0/0/1]source 45.0.0.2

[R5-Tunnel0/0/1]destination 34.0.0.1

      再添加静态路由（只写了两个）

[R3]ip route-static 15.15.15.15 32  20.0.0.5

[R3]ip route-static 16.16.16.16 32 20.0.0.5

[R5]ip route-static 123.1.1.0 24 20.0.0.3