Cisco实验-配置VLAN

叁歲伎倆 2022-04-03 06:50 345阅读 0赞

Vlan(Virtual Local Area Network)即虚拟局域网。VLAN可以把同一个物理网络划分为多个逻辑网段，因此，Vlan可以抑制网络风暴，增强网络的安全性。

# 实验拓扑图 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70]

# 创建VLAN #

有两种方式创建vlan：  
1.全局模式下使用vlan vlanid命令，如：switch(config)\# vlan 10  
2.在vlan database下创建vlan，如switch(vlan) vlan 20

Switch>en
    Switch#conf t
    Enter configuration commands, one per line.  End with CNTL/Z.
    Switch(config)#vlan 10
    Switch(config-vlan)#name Math
    Switch(config-vlan)#exit
    Switch(config)#exit
    Switch#
    %SYS-5-CONFIG_I: Configured from console by console
    
    Switch#vlan database
    % Warning: It is recommended to configure VLAN from config mode,
      as VLAN database mode is being deprecated. Please consult user
      documentation for configuring VTP/VLAN in config mode.
    
    Switch(vlan)#vlan 20 name Chinese
    VLAN 20 added:
        Name: Chinese
    Switch(vlan)#vlan 30 name Other
    VLAN 30 added:
        Name: Other
    Switch(vlan)#

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70 1]

# 把端口划分给vlan（基于端口的vlan） #

Switch(config)#interface fastethernet0/1			进入端口配置模式
    Switch(config-if)#switchport mode access		配置端口为access模式
    Switch(config-if)#switchport access vlan 10		把端口划分到vlan 10

![在这里插入图片描述][20181220211631404.png]

Switch(config-if)#interface fa0/2
    Switch(config-if)#switchport mode access
    Switch(config-if)#switchport access vlan 10

![在这里插入图片描述][2018122021165728.png]  
如果需要一次将多个端口划分给一个vlan使用可以用 interface range命令。

Switch(config-if)#interface range fa0/3 - 5
    Switch(config-if-range)#switchport mode access
    Switch(config-if-range)#switchport access vlan 20
    Switch(config-if-range)#interface range fa0/6 - 7	
    Switch(config-if-range)#switchport mode access
    Switch(config-if-range)#switchport access vlan 30

![在这里插入图片描述][20181220211723194.png]

# 查看vlan信息 #

Switch#show vlan

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70 2]

Switch#sh vlan brief				查看vlan简明信息

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70 3]

Switch#show vlan id 10		查看id为10的vlan

![在这里插入图片描述][20181220211856507.png]

Switch#show vlan name Other		通过vlan的名字查看vlan

![在这里插入图片描述][2018122021191747.png]

# 删除配置 #

Switch(config)#interface fa0/8
    Switch(config-if)#no switchport access vlan 40		把第0个模块中的第8个端口从vlan 40中删除

![在这里插入图片描述][20181220211951446.png]

Switch#vlan database
    % Warning: It is recommended to configure VLAN from config mode,
      as VLAN database mode is being deprecated. Please consult user
      documentation for configuring VTP/VLAN in config mode.
    
    Switch(vlan)#no vlan 40			删除vlan 40

![在这里插入图片描述][20181220212016635.png]

# 设置主机ip #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70 4]  
注意：设置完主机ip，相同vlan可以互相访问，不同vlan不能直接访问。

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[20181220211631404.png]: /images/20220403/7ad1aee5b29b4b3fbf87368f0a4fdf0b.png
[2018122021165728.png]: /images/20220403/985f1f4acf58407e9645fe12a8ec24b7.png
[20181220211723194.png]: /images/20220403/e485da8e1e2e49099a8b9e1093bb8b8e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poYXpoYWd1_size_16_color_FFFFFF_t_70 2]: /images/20220403/97041b07ec3b4f23b99d0e062beb8f88.png
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[20181220211856507.png]: /images/20220403/431e7b28d8874103a69edf9fc73f1adf.png
[2018122021191747.png]: /images/20220403/e512d911ee7a4d239f67e82ff3180d70.png
[20181220211951446.png]: /images/20220403/dc90147fcb534a9c8e7a3859d0631a59.png
[20181220212016635.png]: /images/20220403/fcf9d1b2d2284dd389451ee54b187ad9.png
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