华为路由配置实验通用路由封装协议GRE，跨OSPF网络互相通信

小编：芯水更新时间：2022-04-20

配置GRE隧道使两个不同的网段实现内部通讯，有必有的还可以配置加密

基本的路由信息配置（使用OSPF模拟互联网）

AR1

AR2

The device is running! system-view #进入系统视图 Enter system view, return user view with Ctrl+Z. [Huawei]undo info-center enable #关闭信息中心提示 Info: Information center is disabled. [Huawei]sysname AR2 #修改设备名称 [AR2]interface GigabitEthernet 0/0/0 #进入端口0/0/0 [AR2-GigabitEthernet0/0/0]ip address 12.1.1.2 24 #配置IP地址及子网掩码 [AR2-GigabitEthernet0/0/0]ping 12.1.1.1 #检测与AR1的连通性 PING 12.1.1.1: 56 data bytes, press CTRL_C to break Reply from 12.1.1.1: bytes=56 Sequence=1 ttl=255 time=130 ms Reply from 12.1.1.1: bytes=56 Sequence=2 ttl=255 time=20 ms Reply from 12.1.1.1: bytes=56 Sequence=3 ttl=255 time=40 ms Reply from 12.1.1.1: bytes=56 Sequence=4 ttl=255 time=20 ms Reply from 12.1.1.1: bytes=56 Sequence=5 ttl=255 time=30 ms --- 12.1.1.1 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 20/48/130 ms [AR2-GigabitEthernet0/0/0]quit #退出端口 [AR2]interface GigabitEthernet 0/0/1 #进入端口0/0/1 [AR2-GigabitEthernet0/0/1]ip address 10.1.1.1 24 #配置IP地址及子网掩码 [AR2-GigabitEthernet0/0/1]ping 10.1.1.2 #检测与PC1的连通性 PING 10.1.1.2: 56 data bytes, press CTRL_C to break Reply from 10.1.1.2: bytes=56 Sequence=1 ttl=128 time=30 ms Reply from 10.1.1.2: bytes=56 Sequence=2 ttl=128 time=20 ms Reply from 10.1.1.2: bytes=56 Sequence=3 ttl=128 time=20 ms Reply from 10.1.1.2: bytes=56 Sequence=4 ttl=128 time=20 ms Reply from 10.1.1.2: bytes=56 Sequence=5 ttl=128 time=10 ms --- 10.1.1.2 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 10/20/30 ms [AR2-GigabitEthernet0/0/1]quit #退出端口 [AR2]ospf 1 #创建ospf进程 1 [AR2-ospf-1]area 0 #创建area区域 0 [AR2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.255 #宣告网段及长度 [AR2-ospf-1-area-0.0.0.0]quit #退出区域 0 [AR2-ospf-1]quit #退出ospf进程 [AR2]

AR3

The device is running! system-view #进入系统视图 Enter system view, return user view with Ctrl+Z. [Huawei]undo info-center enable #关闭信息中心提示 Info: Information center is disabled. [Huawei]sysname AR3 #修改设备名称 [AR3]interface GigabitEthernet 0/0/0 #进入端口0/0/0 [AR3-GigabitEthernet0/0/0]ip address 13.1.1.2 24 #配置IP地址及子网掩码 [AR3-GigabitEthernet0/0/0]ping 13.1.1.1 #检测与AR1的连通性 PING 13.1.1.1: 56 data bytes, press CTRL_C to break Reply from 13.1.1.1: bytes=56 Sequence=1 ttl=255 time=90 ms Reply from 13.1.1.1: bytes=56 Sequence=2 ttl=255 time=40 ms Reply from 13.1.1.1: bytes=56 Sequence=3 ttl=255 time=30 ms Reply from 13.1.1.1: bytes=56 Sequence=4 ttl=255 time=20 ms Reply from 13.1.1.1: bytes=56 Sequence=5 ttl=255 time=20 ms --- 13.1.1.1 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 20/40/90 ms [AR3-GigabitEthernet0/0/0]quit #退出端口 [AR3]interface GigabitEthernet 0/0/1 #进入端口0/0/1 [AR3-GigabitEthernet0/0/1]ip add 10.2.2.1 24 #配置IP地址及子网掩码 [AR3-GigabitEthernet0/0/1]ping 10.2.2.2 #检测与PC2的连通性 PING 10.2.2.2: 56 data bytes, press CTRL_C to break Reply from 10.2.2.2: bytes=56 Sequence=1 ttl=128 time=50 ms Reply from 10.2.2.2: bytes=56 Sequence=2 ttl=128 time=10 ms Reply from 10.2.2.2: bytes=56 Sequence=3 ttl=128 time=10 ms Reply from 10.2.2.2: bytes=56 Sequence=4 ttl=128 time=30 ms Reply from 10.2.2.2: bytes=56 Sequence=5 ttl=128 time=10 ms --- 10.2.2.2 ping statistics --- 5 packet(s) transmitted 5 packet(s) received 0.00% packet loss round-trip min/avg/max = 10/22/50 ms [AR3-GigabitEthernet0/0/1]quit #退出端口 [AR3]ospf 1 #创建ospf进程 1 [AR3-ospf-1]area 0 #创建area 区域 0 [AR3-ospf-1-area-0.0.0.0]network 13.1.1.0 0.0.0.255 #宣告网段及长度 [AR3-ospf-1-area-0.0.0.0]quit #退出区域 0 [AR3-ospf-1]quit #退出ospf进程

基本的网络信息配置完成了，我们来检测一下以上配置是否有误，因为没有宣告AR2、AR3连接PC端的网段（10.1.1.0/24以及10.2.2.0/24），默认是AR3可以访问到AR2的0/0/0端口，无法访问到0/0/1端口的网段

下面开始来配置GRE的信息

AR2

[AR2]interface Tunnel 0/0/1 #进入Tunnel端口0/0/1 [AR2-Tunnel0/0/1]tunnel-protocol gre #配置端口协议为GRE [AR2-Tunnel0/0/1]ip address 10.23.1.1 24 #配置端口地址及子网掩码 [AR2-Tunnel0/0/1]source 12.1.1.2 #配置源IP地址 [AR2-Tunnel0/0/1]destination 13.1.1.2 #配置目的IP地址？？ # destination 配置目的IP时使用这个才可以 # description 这个是配置端口说明备注信息的 [AR2-Tunnel0/0/1]keepalive #开启Keepalive检测功能 [AR2-Tunnel0/0/1]quit #退出端口

AR3

[AR3]interface Tunnel 0/0/1 #进入Tunnel端口0/0/1 [AR3-Tunnel0/0/1]tunnel-protocol gre #配置端口协议为GRE [AR3-Tunnel0/0/1]ip address 10.23.1.2 24 #配置端口IP地址及子网掩码 [AR3-Tunnel0/0/1]source 13.1.1.2 #配置源IP地址 [AR3-Tunnel0/0/1]destination 12.1.1.2 #配置目的IP地址 [AR3-Tunnel0/0/1]keepalive #开启Keepalive检测功能 [AR3-Tunnel0/0/1]quit #退出端口

以上基本的GRE隧道就搭建好了，我们看看检测信息

查看Tunnel端口信息