要求:
1、R6为ISP,只配置IP地址,R1-R5的环回为私有网段
2、R1/R4/R5为全连的MGRE结构,R1/R2/R3为星型的拓扑结构,R1为中心站点
3、所有私有网段可以互相通讯,私有网段使用OSPF完成
1、给所有设备配置IP
r1配置:
[r1]int g 0/0/0
[r1-GigabitEthernet0/0/0]ip address 1.1.0.1 30
[r1-GigabitEthernet0/0/0]int GigabitEthernet 0/0/1
[r1-GigabitEthernet0/0/1]ip address 1.2.0.1 30
[r1-GigabitEthernet0/0/1]int lo0
[r1-LoopBack0]ip address 192.168.1.1 24
r2配置:
[r2]int g 0/0/0
[r2-GigabitEthernet0/0/0]ip address 2.0.0.1 30
[r2-GigabitEthernet0/0/0]int lo0
[r2-LoopBack0]ip address 192.168.2.1 24
r3配置:
[r3]int g0/0/0
[r3-GigabitEthernet0/0/0]ip address 3.0.0.1 30
[r3-GigabitEthernet0/0/0]int lo0
[r3-LoopBack0]ip address 192.168.3.1 24
r4配置:
[r4]int g0/0/0
[r4-GigabitEthernet0/0/0]ip address 4.0.0.1 30
[r4-GigabitEthernet0/0/0]int lo0
[r4-LoopBack0]ip address 192.168.4.1 24
r5配置:
[r5]int g0/0/0
[r5-GigabitEthernet0/0/0]ip address 5.0.0.1 30
[r5-GigabitEthernet0/0/0]int lo0
[r5-LoopBack0]ip address 192.168.5.1 24
r6配置:
[r6]int g 0/0/1
[r6-GigabitEthernet0/0/1]ip address 1.2.0.2 30
[r6-GigabitEthernet0/0/1]int g 0/0/0
[r6-GigabitEthernet0/0/0]ip address 1.1.0.2 30
[r6-GigabitEthernet0/0/0]int g 4/0/1
[r6-GigabitEthernet4/0/1]ip address 2.0.0.2 30
[r6-GigabitEthernet4/0/1]int g 0/0/2
[r6-GigabitEthernet0/0/2]ip address 3.0.0.2 30
[r6-GigabitEthernet0/0/2]int g 4/0/0
[r6-GigabitEthernet4/0/0]ip address 4.0.0.2 30
[r6-GigabitEthernet4/0/0]int g 4/0/2
[r6-GigabitEthernet4/0/2]ip address 5.0.0.2 30
2、配置缺省
[r1]ip route-static 0.0.0.0 0 1.2.0.2
[r1]ip route-static 0.0.0.0 0 1.1.0.2
[r2]ip route-static 0.0.0.0 0 2.0.0.2
[r3]ip route-static 0.0.0.0 0 3.0.0.2
[r4]ip route-static 0.0.0.0 0 4.0.0.2
[r5]ip route-static 0.0.0.0 0 5.0.0.2
3.给R1/R4/R5配置全连MGRE
r1配置:
[r1]interface Tunnel 0/0/1
[r1-Tunnel0/0/1]ip address 192.168.7.1 24
[r1-Tunnel0/0/1]tunnel-protocol gre p2mp
[r1-Tunnel0/0/1]source 1.2.0.1
[r1-Tunnel0/0/1]nhrp network-id 101
[r1-Tunnel0/0/1]nhrp entry 192.168.7.2 4.0.0.1 register
[r1-Tunnel0/0/1]nhrp entry 192.168.7.3 5.0.0.1 register
r4配置:
[r4]interface Tunnel 0/0/1
[r4-Tunnel0/0/1]ip address 192.168.7.2 24
[r4-Tunnel0/0/1]tunnel-protocol gre p2mp
[r4-Tunnel0/0/1]source 4.0.0.1
[r4-Tunnel0/0/1]nhrp network-id 101
[r4-Tunnel0/0/1]nhrp entry 192.168.7.1 1.2.0.1 register
[r4-Tunnel0/0/1]nhrp entry 192.168.7.3 5.0.0.1 register
r5配置:
[r5]interface Tunnel 0/0/1
[r5-Tunnel0/0/1]ip address 192.168.7.3 24
[r5-Tunnel0/0/1]tunnel-protocol gre p2mp
[r5-Tunnel0/0/1]nhrp network-id 101
[r5-Tunnel0/0/1]source 5.0.0.1
[r5-Tunnel0/0/1]nhrp entry 192.168.7.1 1.2.0.1 register
[r5-Tunnel0/0/1]nhrp entry 192.168.7.2 4.0.0.1 register
4、R1/R2/R3配置星型拓扑
r1配置:
[r1]interface Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 192.168.6.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre p2mp
[r1-Tunnel0/0/0]nhrp network-id 100
[r1-Tunnel0/0/0]nhrp entry multicast dynamic
[r1-Tunnel0/0/0]source 1.1.0.1
[r1-Tunnel0/0/0]ospf network-type broadcast
r2配置:
[r2]interface Tunnel 0/0/0
[r2-Tunnel0/0/0]ip address 192.168.6.2 24
[r2-Tunnel0/0/0]tunnel-protocol gre p2mp
[r2-Tunnel0/0/0]source g0/0/0
[r2-Tunnel0/0/0]nhrp network-id 100
[r2-Tunnel0/0/0]nhrp entry 192.168.6.1 1.1.0.1 register
r3配置:
[r3]interface Tunnel 0/0/0
[r3-Tunnel0/0/0]ip address 192.168.6.3 24
[r3-Tunnel0/0/0]tunnel-protocol gre p2mp
[r3-Tunnel0/0/0]source g0/0/0
[r3-Tunnel0/0/0]nhrp network-id 100
[r3-Tunnel0/0/0]nhrp entry 192.168.6.1 1.1.0.1 register
5、ospf
r1配置:
[r1]ospf router-id 1.1.1.1
[r1-ospf-1]area 0
[r1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.0
[r1-ospf-1-area-0.0.0.0]network 192.168.6.0 0.0.0.255
[r1-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255
r2配置:
[r2]ospf router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255
[r2-ospf-1-area-0.0.0.0]network 192.168.6.0 0.0.0.255
r3配置:
[r3]ospf router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 192.168.3.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 192.168.6.0 0.0.0.255
r4配置:
[r4]ospf router-id 4.4.4.4
[r4-ospf-1]area 0
[r4-ospf-1-area-0.0.0.0]network 192.168.4.0 0.0.0.255
[r4-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255
r5配置:
[r5]ospf router-id 5.5.5.5
[r5-ospf-1]area 0
[r5-ospf-1-area-0.0.0.0]network 192.168.5.0 0.0.0.255
[r5-ospf-1-area-0.0.0.0]network 192.168.7.0 0.0.0.255