使用单臂路由，静态、默认路由实现不同vlan之间互通
首先根据拓扑图在eNSP中构建拓扑，配置PC1-6的ip，掩码以及网关地址
PC客户端配置ip，掩码以及网关（切记点击应用按钮！！！）
例：
将拓扑图内全部设备启动（根据配置可逐一启动）
整理思绪，根据老师要求，需要将不同vlan的网段实现全网互通，可以将该实验理解成三个部分
①：利用三层交换机，实现vlan10、20互通
②：利用单臂路由，实现vlan30、40互通
③：利用静态路由、默认路由实现全网互通
开始第一部分
SW1二层交换机命令：
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys SW1
[SW1]vlan bat 10 20 ###创建vlan 10 20
[SW1]int e0/0/1 ###选择e0/0/1端口
[SW1-Ethernet0/0/1]p l a ###端口类型 access
[SW1-Ethernet0/0/1]p d v 10 ###划进vlan10
[SW1-Ethernet0/0/1]q
[SW1]
[SW1]int e0/0/2
[SW1-Ethernet0/0/2]p l a
[SW1-Ethernet0/0/2]p d v 20
[SW1-Ethernet0/0/2]q
SW2二层交换机命令：
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys SW2
[SW2]
May 24 2020 16:21:08-08:00 SW2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 4, the c
hange loop count is 0, and the maximum number of records is 4095.vlan bat 10 20
Info: This operation may take a few seconds. Please wait for a moment…done.
[SW2]
May 24 2020 16:21:18-08:00 SW2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 5, the c
hange loop count is 0, and the maximum number of records is 4095.
[SW2]int e0/0/1
[SW2-Ethernet0/0/1]p l a
[SW2-Ethernet0/0/1]p d v 10
[SW2-Ethernet0/0/1]int e0/0/2
[SW2-Ethernet0/0/2]p l a
[SW2-Ethernet0/0/2]p d v 20
[SW2-Ethernet0/0/2]q
SW1和SW2的vlan已创建完毕，且端口划分好，接下来要实现两个交换机中同网段可以互通
[SW1]int g0/0/2 ###选择与交换机SW2相连的端口
[SW1-GigabitEthernet0/0/2]p l t ###端口类型trunk
[SW1-GigabitEthernet0/0/2]p t a v a ###允许通过全部vlan
[SW1-GigabitEthernet0/0/2]
[SW2]int g0/0/2
[SW2-GigabitEthernet0/0/2]p l t
[SW2-GigabitEthernet0/0/2]p t a v a
此时SW1的PC1与SW2的PC3，SW1的PC2与SW2的PC4可以互相链接，但是PC1与PC2，PC4不能连接
接下来就需要将PC1/2/3/4互相链接了
二层交换机SW1命令
[SW1]int g0/0/1
[SW1-GigabitEthernet0/0/1]p l t
[SW1-GigabitEthernet0/0/1]p t a v a
三层交换机RSW4命令：
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan bat 10 20
[Huawei]int vlanif 10
[Huawei-Vlanif10]ip add 192.168.10.1 24
[Huawei-Vlanif10]int vlanif 20
[Huawei-Vlanif20]ip add 192.168.20.1 24
[Huawei-Vlanif20]q
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]p l t
[Huawei-GigabitEthernet0/0/1]p t a v a
[Huawei-GigabitEthernet0/0/1]
此时PC1/2/3/4全部互通
到这一步区域①的全部内容完成，接下来做区域②，将PC5,6互通
二层交换SW3命令：
为SW3划分vlan
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys SW3
[SW3]vlan bat 30 40
Info: This operation may take a few seconds. Please wait for a moment…done.
[SW3]int e 0/0/1
[SW3-Ethernet0/0/1]p l a
[SW3-Ethernet0/0/1]p d v 30
[SW3-Ethernet0/0/1]int e0/0/2
[SW3-Ethernet0/0/2]p l a
[SW3-Ethernet0/0/2]p d v 40
[SW3-Ethernet0/0/2]q
为SW3与R1创建链路
[SW3]int eth-t
[SW3]int Eth-Trunk 1
[SW3-Eth-Trunk1]t
[SW3-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
[SW3-Eth-Trunk1]p l t
[SW3-Eth-Trunk1]p t a v a
[SW3-Eth-Trunk1]q
为路由器R1创建链路，vlan，且划分端口以及分配ip
[Huawei]sys R1
[R1]vlan bat 30 40
[R1]int Eth-Trunk 1
[R1-Eth-Trunk1]trunkport g 0/0/1 to 0/0/2
[R1-Eth-Trunk1]q
[R1]int e
[R1]int Eth-t
[R1]int Eth-Trunk 1.30
[R1-Eth-Trunk1.30]d t v 30
[R1-Eth-Trunk1.30]ip add 192.168.30.1 24
[R1-Eth-Trunk1.30]a b e
[R1-Eth-Trunk1.30]int Eth-Trunk 1.4
[R1-Eth-Trunk1.40]d t v 40
[R1-Eth-Trunk1.40]ip add 192.168.40.1 24
[R1-Eth-Trunk1.40]a b e
此时区域②的步骤完成，vlan30,40可以互通
接下来是步骤③的步骤，创建静态以及默认路由
三层交换命令
sys
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan bat 30 ###创建vlan30
Info: This operation may take a few seconds. Please wait for a moment…done.
[Huawei]int vlanif 30
[Huawei-Vlanif30]ip add 12.0.0.1 30 ###三层交换机需要在vlanif上配置ip
[Huawei-Vlanif30]q
[Huawei]int g0/0/3
[Huawei-GigabitEthernet0/0/3]p l a
[Huawei-GigabitEthernet0/0/3]p d v 30
[Huawei-GigabitEthernet0/0/3]q
[Huawei]ip route-static 0.0.0.0 0.0.0.0 12.0.0.2 ###配置默认路由（向上静态）
[R1]int g0/0/3
May 24 2020 17:21:53-08:00 R1 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25.
191.3.1 configurations have been changed. The current change number is 15, the c
hange loop count is 0, and the maximum number of recordint g0/0/3
[R1-GigabitEthernet0/0/3]ip add 12.0.0.2 30
[R1-GigabitEthernet0/0/3]q
[R1]ip route-static 192.168.10.0 24 12.0.0.1
[R1]ip route-static 192.168.20.0 24 12.0.0.1
[R1]q
此时全机互通，实验完成
