小白必看：三層交換機(jī)實(shí)現(xiàn)VLAN互通實(shí)驗(yàn)（圖文并茂）

小白必看：三層交換機(jī)實(shí)現(xiàn)VLAN互通實(shí)驗(yàn)（圖文并茂）

一.實(shí)驗(yàn)環(huán)境

實(shí)驗(yàn)需要GNS3和c2691路由器

二.實(shí)驗(yàn)圖

三.實(shí)驗(yàn)步驟

首先我們對(duì)sw-2進(jìn)行設(shè)置。我們先添加vlan10和vlan20，操作如圖。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/145251569.png" alt="mark" style="zoom:75%;" />

接下來將接口分配到對(duì)應(yīng)的vlan。操作如下圖<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/150300480.png" alt="mark" style="zoom:75%;" />

我們也可以通過如下圖操作來對(duì)接口的設(shè)置進(jìn)行檢查。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/150736556.png" alt="mark" style="zoom:75%;" />

接下來我們對(duì)R3進(jìn)行設(shè)置。首先我們先把R3的ip地址設(shè)置好。操作如下圖。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/151607090.png" alt="mark" style="zoom:75%;" />

<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/151749712.png" alt="mark" style="zoom:75%;" />

然后我們配置R3的靜態(tài)路由<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/152616358.png" alt="mark" style="zoom:75%;" />

接著我們對(duì)sw-3進(jìn)行設(shè)置。我們先給sw-3添加vlan10和vlan20.<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/153435067.png" alt="mark" style="zoom:75%;" />

我們還得對(duì)sw-3的f1/0接口設(shè)置好trunk，如圖<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/155333120.png" alt="mark" style="zoom:75%;" />

接下來我們?cè)O(shè)置sw-3虛擬接口的網(wǎng)關(guān)，操作如圖<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/160117840.png" alt="mark" style="zoom:75%;" />

打開三層接口，關(guān)閉交換接口，再去設(shè)置物理接口的ip地址。如圖

<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/161256451.png" alt="mark" style="zoom: 80%;" />

由于sw-3通往其他路由器有且僅有一條路線，所以在給他配一個(gè)默認(rèn)路由。操作如圖。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/162313028.png" alt="mark" style="zoom:75%;" />

然后我們就應(yīng)該對(duì)pc機(jī)設(shè)置ip了。操作如下圖。<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/162556511.png" alt="mark" style="zoom:75%;" />

<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/162641472.png" alt="mark" style="zoom:75%;" />

<img src="http://itmc.oss-cn-hangzhou.aliyuncs.com/blog/20191019/162819394.png" alt="mark" style="zoom:75%;" />

實(shí)驗(yàn)?zāi)壳盀橹菇Y(jié)束。最后只需要取用pc1去pingPC2和PC3就行，ping成功實(shí)驗(yàn)則成功。