隔离:隔离的是故障,如局域网arp病毒。
连通:是正常的通信。
典型做法是使用三层交换技术,把不同的vlan又连通。
一、实验设备:一台三层交换机、一台二层交换机、两台PC机
二、网络拓扑如下:
三、配置步骤:
1、PC机设置静态IP地址:PC1的IP为:1.1.1.1; PC2的IP:2.2.2.2
2、交换机的配置:
先配置二层交换机,网口1和三层交换机相连,接口模式配置为trunk;网口2和网口3接PC主机,接口模式配置为:access;
#
sysname dyne_5f_2sw
#
undo info-center enable
#
vlan batch 10 20
#配置左边PC1接的网口2
[dyne_5f_2sw]int e0/0/2 //进到网口2
[dyne_5f_2sw-Ethernet0/0/2]port link-type acc //接口模式为access
[dyne_5f_2sw-Ethernet0/0/2]port de
[dyne_5f_2sw-Ethernet0/0/2]port default vlan 10 //划分到vlan 10
[dyne_5f_2sw-Ethernet0/0/2]q //退出接口2
#进到网口3配置PC2连接口
[dyne_5f_2sw]int e0/0/3 // 进到网口3
[dyne_5f_2sw-Ethernet0/0/3]port link-type access //接口模式为access
#配置网口1,和三层交换机相接的这个口
[dyne_5f_2sw]int e0/0/1
[dyne_5f_2sw-Ethernet0/0/1]port link-type trunk //接口模式为access
[dyne_5f_2sw-Ethernet0/0/1]port trunk allow-pass vlan all
[dyne_5f_2sw]
配置三层交换机:接口模式为trunk,然后和二层交换机一样,划分vlan 10和vlan20
<Huawei>sys
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sys
[Huawei]sysname dyne_5fsw_cw //改名字
[dyne_5fsw_cw]vlan 10 //建vlan10
[dyne_5fsw_cw-vlan10]vlan 20 //建vlan 20
[dyne_5fsw_cw-vlan20]q
<dyne_5fsw_cw>sys
<dyne_5fsw_cw>system-view
Enter system view, return user view with Ctrl+Z.
[dyne_5fsw_cw]un in en //关闭提示
Info: Information center is disabled.
[dyne_5fsw_cw]int g0/0/1 //进到接口下配置
[dyne_5fsw_cw-GigabitEthernet0/0/1]port link-type trunk //接口模式为trunk
[dyne_5fsw_cw-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[dyne_5fsw_cw-GigabitEthernet0/0/1]q
[dyne_5fsw_cw]int
[dyne_5fsw_cw]interface vlan
[dyne_5fsw_cw]interface Vlanif 10
[dyne_5fsw_cw-Vlanif10]ip add 1.1.1.254 24 //vlan 10的网关
[dyne_5fsw_cw-Vlanif10]q
[dyne_5fsw_cw]int
[dyne_5fsw_cw]interface vl
[dyne_5fsw_cw]interface Vlanif 20
[dyne_5fsw_cw-Vlanif20]ip add 2.2.2.254 24 //vlan20的网关
[dyne_5fsw_cw-Vlanif20]q
[dyne_5fsw_cw] User interface con0 is available
3、测试连通:ping 网关测试通。ping vlan 20 下的pc2 也是通的。
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