GRE通过公网传输RIP路由

GRE通过公网传输RIP路由

学习目标

• 掌握GRE隧道封装的配置方法
• 掌握GRE隧道接口的配置方法
• 理解GRE Keepalive功能的实现原理

网络拓扑图

GRE通过公网传输RIP路由

路由器的配置

路由器R1的配置:

sysname R1

interface GigabitEthernet0/0/0
ip address 200.1.1.1 255.255.255.0

interface GigabitEthernet0/0/1

interface GigabitEthernet0/0/2
ip address 10.0.1.2 255.255.255.0

interface Tunnel0/0/0
ip address 100.1.1.1 255.255.255.0
tunnel-protocol gre
source 200.1.1.1
destination 201.1.1.2

ospf 1 router-id 1.1.1.1
area 0.0.0.0
network 100.0.0.0 0.255.255.255
network 200.1.1.0 0.0.0.255

rip 1
version 2
network 10.0.0.0
network 100.0.0.0

ip route-static 0.0.0.0 0.0.0.0 Tunnel0/0/0

路由器R2的配置:

sysname R2

interface GigabitEthernet0/0/0
ip address 200.1.1.2 255.255.255.0

interface GigabitEthernet0/0/1
ip address 201.1.1.1 255.255.255.0

ospf 1 router-id 2.2.2.2
area 0.0.0.0
network 200.1.1.0 0.0.0.255
network 201.1.1.0 0.0.0.255

sysname R3

interface GigabitEthernet0/0/0
ip address 201.1.1.2 255.255.255.0

interface GigabitEthernet0/0/1

interface GigabitEthernet0/0/2
ip address 10.0.2.1 255.255.255.0

interface Tunnel0/0/0
ip address 100.1.1.2 255.255.255.0
tunnel-protocol gre
source 201.1.1.2
destination 200.1.1.1

rip 1
version 2
network 10.0.0.0
network 100.0.0.0

ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 100.0.0.0 0.255.255.255
network 201.1.1.0 0.0.0.255

ip route-static 0.0.0.0 0.0.0.0 Tunnel0/0/0

联通测试:
ping -a 1.1.1.1 2.2.2.2

dis rip 1 route
Route Flags : R - RIP
A - Aging, G - Garbage-collect

Peer 10.0.1.2 on GigabitEthernet0/0/0
Destination/Mask Nexthop Cost Tag Flags Sec
2.2.2.2/32 10.0.1.2 3 0 RA 29
10.0.2.0/24 10.0.1.2 2 0 RA 29
100.1.1.0/24 10.0.1.2 1 0 RA 29

dis rip 1 route
Route Flags : R - RIP
A - Aging, G - Garbage-collect

Peer 10.0.1.1 on GigabitEthernet0/0/2
Destination/Mask Nexthop Cost Tag Flags Sec
1.1.1.1/32 10.0.1.1 1 0 RA 12
Peer 100.1.1.2 on Tunnel0/0/0
Destination/Mask Nexthop Cost Tag Flags Sec
10.0.2.0/24 100.1.1.2 1 0 RA 10
2.2.2.2/32 100.1.1.2 2 0 RA 10

dis rip 1 route
Route Flags : R - RIP
A - Aging, G - Garbage-collect

Peer 10.0.2.1 on GigabitEthernet0/0/0
Destination/Mask Nexthop Cost Tag Flags Sec
100.1.1.0/24 10.0.2.1 1 0 RA 2
1.1.1.1/32 10.0.2.1 3 0 RA 2
10.0.1.0/24 10.0.2.1 2 0 RA 2

[R3]dis rip 1 route
Route Flags : R - RIP
A - Aging, G - Garbage-collect

Peer 10.0.2.2 on GigabitEthernet0/0/2
Destination/Mask Nexthop Cost Tag Flags Sec
2.2.2.2/32 10.0.2.2 1 0 RA 9
Peer 100.1.1.1 on Tunnel0/0/0
Destination/Mask Nexthop Cost Tag Flags Sec
10.0.1.0/24 100.1.1.1 1 0 RA 2
1.1.1.1/32 100.1.1.1 2 0 RA 2
[R3]

联通性测试及抓包分析

GRE通过公网传输RIP路由

GRE通过公网传输RIP路由

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