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華為路由器單臂路由實例

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需求:在局域網(wǎng)中,通過交換機上配置VLAN可以減少主機通信廣播域的范圍,當(dāng)VLAN之間有部分主機需要通信,但交換機不支持三層交換時,可以采用一臺支持802.1Q的路由器實現(xiàn)VLAN的互通.這需要在以太口上建立子接口,分配IP地址作為該VLAN的網(wǎng)關(guān),同時啟動802.1Q.
組網(wǎng):路由器E0端口與交換機的上行trunk端口(第24端口)相連,交換機下行口劃分3個VLAN,帶若干主機.

拓撲圖如下：
1.路由器的配置
[Router]
[Router]inter e0
[Router-Ethernet0]ip add 10.0.0.1 255.255.255.0
[Router-Ethernet0]inter e0.1 //定義子接口E0.1
[Router-Ethernet0.1]ip add 172.16.1.1 255.255.255.0
[Router-Ethernet0.1]vlan-type dot1q vid 1 //指定以太網(wǎng)子接口屬于VLAN1,此命令應(yīng)用在以太網(wǎng)子接口
【華為路由器單臂路由實例】上 。只有配置了該命令之后，以太網(wǎng)子接口才會根據(jù)配置的VLAN ID 號在以太網(wǎng)幀頭中嵌入VLAN 標(biāo)簽，與該網(wǎng)
口相連的交換機接口才能正確處理接收到的幀 。
[Router-Ethernet0.1]inter e0.2 //定義子接口E0.2
[Router-Ethernet0.2]ip add 172.16.2.1 255.255.255.0
[Router-Ethernet0.2]vlan-type dot1q vid 2 //指定以太網(wǎng)子接口屬于VLAN2
[Router-Ethernet0.2]inter e0.3 //定義子接口E0.3
[Router-Ethernet0.3]ip add 172.16.3.1 255.255.255.0
[Router-Ethernet0.3]vlan-type dot1q vid 3 //指定以太網(wǎng)子接口屬于VLAN3
[Router-Ethernet0.3]inter e0
[Router-Ethernet0]undo shut
% Interface Ethernet0 is up
[Router-Ethernet0] //用網(wǎng)線將E0端口連到S3026第24端口
:46:32: Interface Ethernet0 changed state to UP
:46:32: Line protocol ip on interface Ethernet0, changed state to UP
:46:32: Line protocol ip on interface Ethernet0.1, changed state to UP
:46:32: Line protocol ip on interface Ethernet0.2, changed state to UP
:46:32: Line protocol ip on interface Ethernet0.3, changed state to UP
2.交換機的配置

sys
Enter system view , return user view with Ctrl Z.
[Quidway]vlan 1
[Quidway-vlan1]vlan 2
[Quidway-vlan2]port ethernet 0/17 to eth 0/19 eth 0/22 //將第17至19端口，和第22端口加入VLAN2
[Quidway-vlan2]vlan 3
[Quidway-vlan3]port eth 0/21 //將第21端口加入VLAN2
[Quidway-vlan3]inter e0/24
[Quidway-Ethernet0/24]port link-type trunk //將第24端口設(shè)為trunk口
[Quidway-Ethernet0/24]port trunk permit vlan all//答應(yīng)所有VLAN流量通過
Please wait........................................... Done.
[Quidway-Ethernet0/24]dis port trunk //檢驗TRUNK口配置
Now, the following trunking ports exist:
Ethernet0/24
[Quidway-Ethernet0/24]dis vlan 2　//檢驗VLAN2的配置
VLAN ID: 2
VLAN Type: static
Route Interface: not configured
Description: VLAN 0002
Tagged Ports:
Ethernet0/24
Untagged Ports:
Ethernet0/17 Ethernet0/18 Ethernet0/19 Ethernet0/22
[Quidway-Ethernet0/24]dis vlan 3　//檢驗VLAN3的配置
VLAN ID: 3
VLAN Type: static
Route Interface: not configured
Description: VLAN 0003
Tagged Ports:
Ethernet0/24
Untagged Ports:
Ethernet0/21
3.在工作站上檢查網(wǎng)絡(luò)是否連通 。此工作站連接S3026第21端口，屬于VLAN2 。
C:Documents and SettingsAdministrator>ipconfig
windows 2000 IP Configuration

Ethernet adapter 本地連接:
Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 172.16.2.22
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.2.1
C:Documents and SettingsAdministrator>ping 172.16.3.1
Pinging 172.16.3.1 with 32 bytes of data:
Reply from 172.16.3.1: bytes=32 time<10ms TTL=255
Reply from 172.16.3.1: bytes=32 time

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