单臂路由技术

单臂路由

当只有二层交换机时，又要实现不同vlan间通信时，需要用到单臂路由技术

1.实现不同vlan间通信
打开ensp,配置一台路由器，一台交换机，两台PC机

2.设置PC1的IP地址和网关，PC2的IP地址和网关
PC1,IP地址192.168.2.10 ，网关：192.168.2.1/24
PC2,IP地址192.168.3.10，网关：192.168.3.1/24


3.进入交换机基础配置
u t m
Info: Current terminal monitor is off.
sys
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sys
[Huawei]sysname sw1
[sw1]us
[sw1]user-int
[sw1]user-interface co
[sw1]user-interface console 0
[sw1-ui-console0]id
[sw1-ui-console0]idle-timeout 0 0

[sw1-ui-console0]vlan bat 2 3 ------- 创建vlan
Info: This operation may take a few seconds. Please wait for a moment…done.
[sw1]int g0/0/1---------------进入接口
[sw1-GigabitEthernet0/0/1]port trunk
[sw1-GigabitEthernet0/0/1]port link
[sw1-GigabitEthernet0/0/1]port link-type
[sw1-GigabitEthernet0/0/1]port link-type trunk-----------------------端口trunk类型
[sw1-GigabitEthernet0/0/1]port trunk al
[sw1-GigabitEthernet0/0/1]port trunk allow-pass vlan 2 3---------------------------允许通过vlan2 和vlan3
[sw1-GigabitEthernet0/0/1]int e0/0/1-------------------------------进入接口
[sw1-Ethernet0/0/1]port link-type access--------------------------接口类型为access
[sw1-Ethernet0/0/1]port default vlan 3
[sw1-Ethernet0/0/1]int e0/0/2
[sw1-Ethernet0/0/2]port link-type access
[sw1-Ethernet0/0/2]port default vlan 2
[sw1-Ethernet0/0/2]

[R1-GigabitEthernet0/0/0]int g0/0/0.1--------进入端口
R1-GigabitEthernet0/0/0.1]vlan-type dot1q 2 default -----划分端口
[R1-GigabitEthernet0/0/0.1]ip add 192.168.2.1 24------写入网关
[R1-GigabitEthernet0/0/0.1]int g0/0/0.2-----进入端口
1-GigabitEthernet0/0/0.2]vlan-type dot1q 3 default —划分端口
[R1-GigabitEthernet0/0/0.2]ip add 192.168.3.1 24-----写入网关

通过pc1 PING pc2的网关：

通过PC2 ping PC1 的网关：