GRE ××× 1（gre考试时间）

GRE ××× 1（gre考试时间）

GRE ××× 实现分支通过总部互访1、把分支联通总部！2、通过路由协议学习到分支的路由（isis ospf rip）！3、看总部是否联通到分支，分支是否学习到分支的路由！

总部配置AR1interface GigabitEthernet0/0/0ip address 12.12.12.1 255.255.255.0

interface GigabitEthernet0/0/1ip address 13.13.13.1 255.255.255.0

interface NULL0

interface LoopBack0ip address 1.1.1.1 255.255.255.0

interface Tunnel0/0/0ip address 192.168.1.1 255.255.255.0 tunnel-protocol gresource 12.12.12.1destination 12.12.12.2

interface Tunnel0/0/1ip address 192.168.2.1 255.255.255.0 tunnel-protocol gresource 13.13.13.1destination 13.13.13.3

ospf 1 area 0.0.0.0 network 1.1.1.0 0.0.0.255 network 192.168.0.0 0.0.255.255

ip route-static 2.2.2.0 255.255.255.0 Tunnel0/0/0ip route-static 3.3.3.0 255.255.255.0 Tunnel0/0/1

user-interface con 0authentication-mode passworduser-interface vty 0 4user-interface vty 16 20

wlan ac

return<1>

分支2 AR2

interface GigabitEthernet0/0/0ip address 12.12.12.2 255.255.255.0 #interface GigabitEthernet0/0/1#interface NULL0 #interface LoopBack0ip address 2.2.2.2 255.255.255.0 #interface Tunnel0/0/0ip address 192.168.1.2 255.255.255.0 tunnel-protocol gresource 12.12.12.2destination 12.12.12.1#ospf 1 area 0.0.0.0 network 2.2.2.0 0.0.0.255 network 192.168.0.0 0.0.255.255 #ip route-static 1.1.1.0 255.255.255.0 Tunnel0/0/0#user-interface con 0authentication-mode passworduser-interface vty 0 4user-interface vty 16 20#wlan ac

return<2>

分支3 AR3

interface GigabitEthernet0/0/1ip address 13.13.13.3 255.255.255.0 #interface NULL0 #interface LoopBack0ip address 3.3.3.3 255.255.255.0 #interface Tunnel0/0/1ip address 192.168.2.2 255.255.255.0 tunnel-protocol gresource 13.13.13.3destination 13.13.13.1#ospf 1 area 0.0.0.0 network 3.3.3.0 0.0.0.255 network 192.168.0.0 0.0.255.255 #ip route-static 1.1.1.0 255.255.255.0 Tunnel0/0/1#user-interface con 0authentication-mode passworduser-interface vty 0 4user-interface vty 16 20#wlan ac

return<3>

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