三層交換機與路由器的配置

三層交換機與路由器的配置 實例（圖解）

目的：學(xué)會使用三層交換與路由器讓處于不同網(wǎng)段的網(wǎng)絡(luò)相互通信

實驗步驟：一：二層交換機的配置：

在三個二層交換機上分別劃出兩VLAN，并將二層交換機上與三層交換或路由器上的接線設(shè)置為trunk接口

二：三層交換機的配置：

1：首先在三層交換上劃出兩個VLAN，并進(jìn)入VLAN為其配置IP，此IP將作為與他相連PC的網(wǎng)關(guān)。 2：將與二層交換機相連的線同樣設(shè)置為trunk接線，并將三層交換與路由器連接的線設(shè)置為路由接口（no switchsport）

3：將路由器和下面的交換機進(jìn)行單臂路由的配置

實驗最終結(jié)果：拓?fù)鋱D下各個PC均能相互通信

交換機的配置命令：

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)#

三層交換的配置命令：

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 %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#

Switch(config-if)#ip address 192.168.10.1 255.255.255.0

Switch(config-if)#no shut

Switch(config-if)#exit

Switch(config)#ip routing

Switch(config-if)#exit

Switch(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.2

Switch(config)#

路由器的配置：

Router>en

Router#conf

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

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

Router(config)#int f0/0

Router(config-if)#no shut

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

Router(config-if)#exit

Router(config)#int f0/1

Router(config-if)#no shut

%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up Router(config-if)#exit

Router(config)#int f0/0

Router(config-if)#no shut

Router(config-if)#exit

Router(config)#int f0/0.1

Router(config-subif)#encapsulation dot1Q 1

Router(config-subif)#ip address 192.168.3.168 255.255.255.0

Router(config-subif)#exit

Router(config)#int f0/0.2

Router(config-subif)#encapsulation dot1Q 2

Router(config-subif)#ip add

Router(config-subif)#ip address 192.168.4.168 255.255.255.0

Router(config-subif)#exit

Router(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.1

Router(config)#exit

%SYS-5-CONFIG_I: Configured from console by console Router#conf

Configuring from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/1

Router(config-if)#ip add

Router(config-if)#ip address 192.168.10.2 255.255.255.0 Router(config-if)#