三层交换机详细配置实例(图)

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三层交换机与路由器的配置实例(图解)

目的:学会使用三层交换与路由器让处于不同网段的网络相互通信

实验步骤:一:二层交换机的配置:

在三个二层交换机上分别划出两VLAN,并将二层交换机上与三层交换或路由器上的接线设置为trunk接口

二:三层交换机的配置:

1:首先在三层交换上划出两个VLAN,并进入VLAN为其配置IP,此IP将作为与他相连PC 的网关。

2:将与二层交换机相连的线同样设置为trunk接线,并将三层交换与路由器连接的线设置为路由接口(no switchsport)

3:将路由器和下面的交换机进行单臂路由的配置

实验最终结果:拓扑图下各个PC均能相互通信

交换机的配置命令:

SW 0:

Switch>

Switch>en

Switch#conf

Configuring from terminal, memory, or network [terminal]?

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#vlan 2

Switch(config-vlan)#exit

Switch(config)#int f0/2

Switch(config-if)#switchport access vlan 2

Switch(config-if)#no shut

Switch(config-if)#int f0/3

Switch(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up

Switch(config-if)#exit

Switch(config)#

SW 1:

Switch>en

Switch#conf

Configuring from terminal, memory, or network [terminal]?

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#int f0/2

Switch(config-if)#switchport access vlan 2

% Access VLAN does not exist. Creating vlan 2

Switch(config-if)#no shut

Switch(config-if)#exit

Switch(config)#int f0/3

Switch(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up

Switch(config-if)#

SW 2:

Switch>en

Switch#conf

Configuring from terminal, memory, or network [terminal]?

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#int f0/2

Switch(config-if)#switchport access vlan 2

% Access VLAN does not exist. Creating vlan 2

Switch(config-if)#exit

Switch(config)#int f0/3

Switch(config-if)#switchport mode trunk

Switch(config-if)#

三层交换的配置命令:

Switch>en

Switch#conf

Configuring from terminal, memory, or network [terminal]?

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#int f0/1

Switch(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

Switch(config-if)#exit

Switch(config)#int f0/2

Switch(config-if)#switchport mode trunk

Switch(config-if)#exit

Switch(config)#vlan 2

Switch(config-vlan)#exit

Switch(config)#int vlan 1

Switch(config-if)#no shut

%LINK-5-CHANGED: Interface Vlan1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up Switch(config-if)#ip address 192.168.1.168 255.255.255.0

Switch(config-if)#exit

Switch(config)#int vlan 2

%LINK-5-CHANGED: Interface Vlan2, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to upSwitch(config-if)#ip add

Switch(config-if)#ip address 192.168.2.168 255.255.255.0

Switch(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/3, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up

Switch(config-if)#exit

Switch(config)#int f0/3

Switch(config-if)#no switchport

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

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