tag:blogger.com,1999:blog-58386606909288704802024-03-21T10:54:47.172-07:00Madhans Tutorials : VLAN for Abosolute BeginnersConfiguration of VLAN in step by step guiding tutorial with screenshots....Unknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5838660690928870480.post-73862106380806196072009-10-21T00:08:00.000-07:002009-10-21T23:00:17.728-07:00VLAN Configuration Page 1<div style="font:normal 2px arial">A step by step tutorial showing how to configure VLAN - alongwith screenshots"
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<tr> <td style="font:normal 10px arial;color:#d0d0d0;"> Madhans Tutorials : VLAN for absolute Beginners </td> </tr>
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Madhans Tutorials : VLAN for absolute Beginners </div>
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<font color="#0066CC" size="7" face="Arial, Helvetica, sans-serif"><strong>Objectives:</strong></font></p>
<ul><ul>
<li><font color="#0066CC" face="Arial, Helvetica, sans-serif"><strong><font size="4">What is VLAN?</font></strong></font></li>
<li><font size="4"><strong><font color="#0066CC" face="Arial, Helvetica, sans-serif">How VLAN can improve the LAN bandwidth?</font></strong></font></li>
<li><font size="4"><strong><font color="#0066CC" face="Arial, Helvetica, sans-serif">How VLAN introduces security in a LAN network?</font></strong></font></li>
<li><font size="4"><strong><font color="#0066CC" face="Arial, Helvetica, sans-serif">How to configure a Cisco 2950 switch for VLAN?</font></strong></font></li>
<li><font size="4"><strong><font color="#0066CC" face="Arial, Helvetica, sans-serif">What is the difference between Access port and Trunk Port?</font></strong></font></li>
<li><font size="4"><strong><font color="#0066CC" face="Arial, Helvetica, sans-serif">List of video tutorials giving insight into VLAN concepts.</font></strong></font></li>
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<strong><font color="#0066CC" size="7" face="Arial, Helvetica, sans-serif">What is VLAN?</font></strong></p>
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VLAN stands for Virtual Local Area Network. VLAN is used for segmenting a LAN network. A VLAN is defined as a broadcast domain within a switched network. </p>
The following images may give an idea about VLAN. Note : VLAN is just a software configuration. No special hardwares are needed... <img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJjN7lj1tb9xJ4DAg1yeitkj7U3MAiyE2aaohMJbAIGJzBHlo1zDZ5qEjm72rTakj1sKEqS6claB4pj9cWdsu93b2fsacWBG8NfBHsy77QRiIiupD-vGiBZACV-gv3MprEaRon43yJL972/s800/two-switches-in-a-single-lan-network-r300w600.jpg" /> <img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwvqJKHUP_8iuUq_7Q8tC5U44b7j0DCITQo32RPiw2bHCiJeLuC0erugjBS7VLMw6buM_Zlbc3WHw_O2336JpEy1XvSXot6AMdY8mQQMJocQlw1qJe1Kya-umek3wEBJjXkuCMhpDG2mVB/s800/two-lans-physically-separated-r300.jpg" /> <img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuZcHYJoGlrVwgdwqNtpHTvRV6a_vtw_GXkmSAe0iIog9WlY6hcOD60CDoJFSIJHP2COd2se5ybFCG2whHKjAOsVIsP1zAsZhu6wSr5GsC727shycmDI8l5TlWsJtSOC8h1Sx7xXYBT64H/s800/convert-lan-to-vlan-r300.jpg" /> </div>
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<strong><font color="#0099FF" size="5">Why Should I segment my LAN network?</font></strong></p>
<p>
<font size="4" face="Arial, Helvetica, sans-serif">• By segmenting, you create more broadcast domains and you get more bandwidth.
• Additional security by isolating users according to work groups, department differentiation or even application usage without worrying about the physical location of the hosts.</font></p>
<ul>
<li><font size="4" face="Arial, Helvetica, sans-serif"> Reduction in virus attacks: A virus in a computer can attack all other computers in its broadcast domain very easily. By reducing the number of machines in a broadcast domain, virus risk is also reduced.
• Deployment flexibility based upon job function rather than physical placement </font> </li>
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<strong><font size="6">How segmenting can increase the bandwdith?</font></strong></p>
<p>
Each VLAN consists of a separated broadcast domain. Which means that only ports belonging to a specific VLAN share broadcasts eliminating unnecessary traffic from flooding the entire network; hence improving the overall bandwidth of the LAN. Moreover, number of messages that are to be processed by the machines are also reduced saving the valuable processor time..</p>
<p>
The following screenshot shows a number of arp broadcast messages occupying the LAN bandwidth.</p>
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<img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;width: 600px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEifHR9oTvJd7aSMX6UL6LGZzWNyPYH2lLQrUFLsQhe68KRbN0H3W3dvAE08cokZz4tAKDCDMuLGSgr3FkO4vN9rxmY-6lKrzTs-mAT0aL8XtzbAqfzenIH8Pgd2cA2YdJtIdfYIFpHa7wL_/s800/broadcast-messages-in-a-lan-network-r300.jpg" border="0" alt="screen capture of broadcast messages"id="BLOGGER_PHOTO_ID_5381140751744040818" /></p>
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<strong><font size="5"> How to configure VLANs in aCisco 2950 switch?</font></strong></p>
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<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjrxv01_Fl1dJjS5QK11U7Fr4ZxQNz8xHZ1YcJyQeNGQmMtAfnMSJyHAqi01KRnSVJGbwDdO-bnbewbHRdnksXkYnjwHFTH070YewmfNGUpzDGak3hMl48v1CKAyNnNYTBtfv2uCJ5Pgee5/s400/cisco2950-catalyst-switch-front-rear-view.jpg" alt="cisco 2950 switch front and rear view" /> <div style="clear:both;">
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<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitweix4m1vsAaXy6NB1SgUC-0TKP7EF_o2MU2NYPyPrD7QHsnKzYPr5ZG74OWIpsWztxMZB2_Wzh8uD9UCXVTGfCNAOhu3mO4RIq_gvi1X-oHFZkAafPUmU_-VKHQqUmJzDyeheGxD4LEq/s400/cisco-switch-telnet-screenshot.jpg" alt="cisco 2950 switch checking the existing configuration" /> <div style="clear:both;">
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Cisco conguration showing the existing ports connected to VLAN 1. Note: VLAN1 is the Default VLAN, which means, even before your configure a switch, it exists by default. </div>
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<strong><font size="5"> Configuration commands for a cisco switch.</font></strong></p>
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<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjss0ND-I3-dO_-UTgq0c7rgoJAYe2-_ZfjGPGD3nh2qFAfg7OkWGi78WPfoRC3YJwDCd5GObEcVFkGWm9yJKhgBf5pX8hu1SI9laEcTXvXeRIKCCrMIkrz-eCJNkFwm55HPvhh485i7gys/s400/cisco-vlan-configuration-example.jpg" alt="screenshot showing how to configure a vlan" /> <div style="clear:both;">
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A Screenshot showing how to configure VLAN. </div>
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<font size="5">What is the Difference between "acess mode" and "trunk mode"?<strong>
<font size="3">Have a look at the above configuration example. In this Configuration, “access mode” is used. Switch ports run in either access or trunk mode. In access mode, the interface belongs to one and only one VLAN. Normally a switch port in access mode attaches to an end user device or a server. The frames transmitted on an access link look like any other Ethernet frame. </font></strong></font></p>
<p>
“Trunks” on the other hand, multiplex traffic for multiple VLANs over the same physical link. Trunk links usually interconnect switches. Trunks encapsulate Ethernet frames with other information to support multiplexing.</p>
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<strong><font size="4">How to configure the trunk port?</font></strong>
<strong><font face="Arial, Helvetica, sans-serif">SwitchA(config)#interface 0/1
SwitchA(config-if)#switchport trunk encapsulation dot1q
SwitchA(config-if)#switchport trunk allowed vlan 1,2,4
SwitchA(config-if)#switchport mode trunk
</font></strong><font face="Arial, Helvetica, sans-serif"> </font> </p>
<p>
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<p>
<strong><font size="4">How to confgure the Router?</font></strong></p>
<p>
R<font size="3" face="Arial, Helvetica, sans-serif"><strong>outer(config-if)#no ip address (remove ip address in this interface)</strong></font></p>
<p>
<font size="3" face="Arial, Helvetica, sans-serif"><strong>Router(config-if)#no shutdown </strong></font></p>
<p>
<font size="3" face="Arial, Helvetica, sans-serif"><font color="#333333" size="2">Note: We are going to give different ip addresses to each sub interfaces,that is why we removed the above ip address.</font></font></p>
<p>
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<p>
<font size="3" face="Arial, Helvetica, sans-serif"><strong>Router(config-if)#int e0/0.3 (where 3 refers to vlan3)</strong></font></p>
<p>
<font size="3" face="Arial, Helvetica, sans-serif"><font color="#333333" size="2">Note: Instead of 3, you can use any number. giving the vlan id is more convenient.</font></font></p>
<p>
<font size="3" face="Arial, Helvetica, sans-serif"><strong>Router(config-subif)#encapsulation dot1q 3</strong></font></p>
<p>
<font color="#333333" size="2" face="Arial, Helvetica, sans-serif">Note : The different encapsulation methods are dot1q, isl; here 3 refers to vlan id</font></p>
<p>
<font size="3" face="Arial, Helvetica, sans-serif"><strong>Router(config-subif)#ip address 10.10.1.1 255.255.255.0</strong></font></p>
<p>
<font color="#333333" size="2" face="Arial, Helvetica, sans-serif">Note: Assign ip address from 10.10.1.2 to 10.10.1.254 to the computers connected to this VLAN. These computers should be configured with the default gateway: 10.10.1.1</font></p>
<p>
<font color="#333333" size="2" face="Arial, Helvetica, sans-serif">Note: Configure the other sub interfaces in the same manner.</font></p>
<p>
<font color="#333333" size="2" face="Arial, Helvetica, sans-serif">Note: Configure ACL to control the traffic between VLANs.</font></p>
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<p>
Some excellent video tutorials on VLAN
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How Tags are working in VLAN?
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<p>
A video tutorial showing how to configure a cisco Switch for VLAN
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<embed src="http://www.youtube.com/v/9dHk4PNCnGk&hl=en&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="405"></embed></object> </p>
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<tr> <td> <div style="font:normal 10px arial;color:#b0b0b0">
Posted By : Madhan</div>
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<a style='width:700px;text-align:left;text-decoration:none;font:10px verdana;color:#b0b0b0' href='http://enjoystudy.blogspot.com/2008_06_12_archive.html#5347540867220883428'> Disclaimer and Copyright </a> </div>
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<p style="background-color:#ffffff;font:normal 6px arial;color:#ffffff">
What is VLAN? , VLAN tutorial for absolute beginners, VLAN and network security.</p>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5838660690928870480.post-86485374055439396872009-10-20T22:16:00.000-07:002009-10-26T22:36:54.683-07:00images of Various Popular Switches<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu7HQkbfwZ7rxpYj6TFDADrWCkWw5gEhaJBVWx0O8nkXH10GZOwWqo4pZ1J53baUTjFPDspwOMTmmW0Ze80XtTKEK3yhvpZI4VSdTPw2c3vyrDbL28U2LWeT-GcqcZfSZF_UOVBgrivQcN/s1600-h/cisco-2960-switch-24x7vlan.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiu7HQkbfwZ7rxpYj6TFDADrWCkWw5gEhaJBVWx0O8nkXH10GZOwWqo4pZ1J53baUTjFPDspwOMTmmW0Ze80XtTKEK3yhvpZI4VSdTPw2c3vyrDbL28U2LWeT-GcqcZfSZF_UOVBgrivQcN/s800/cisco-2960-switch-24x7vlan.jpg" vr="true" width="600" /></a><br /></div>
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<a alt="image of a cisco catalyst switch" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8H5fqcJ7tjJIjPcA55PmhPVyTmszH1mzomB5ijZeMzgWPW3dPpSEfou7atL6tGnukaw12nu2SquSz2k6US4r3qpHWkJqUk__xD-6OYMyeTgxOenOnFd7IXIr5tDocNNWs6hHuqMwWD5Yw/s1600-h/cisco-switch-high-end-r300.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img width="600" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8H5fqcJ7tjJIjPcA55PmhPVyTmszH1mzomB5ijZeMzgWPW3dPpSEfou7atL6tGnukaw12nu2SquSz2k6US4r3qpHWkJqUk__xD-6OYMyeTgxOenOnFd7IXIr5tDocNNWs6hHuqMwWD5Yw/s800/cisco-switch-high-end-r300.jpg" vr="true" /></a><br /></div>
<br />Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5838660690928870480.post-18167275555768839872009-10-20T21:57:00.000-07:002009-10-26T22:18:10.327-07:00BABY GIANT in Ethernet<div style="font:normal 3px arial">
What is "BABY GIANT" and "JUMPO" frame in TCP/IP Networking and Ethernet
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<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAMUSZZGJIQgVX9kZb7sj-moSaAjiICDYSqQHFatzcouQyeBpMoGZ1hN4TkblNwhqOSkJavdx40K3JsAuHdMs8_anTCzV-_nEXJSTzEUJhX7iCr9kM06ZsNKdjnsLdL8L6nstBENsv9ivs/s800/baby-giant-24x7vlan-r300.jpg" width="600" /> <br />
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<tr><td><span style="color: #0099ff; font-family: Arial, Helvetica, sans-serif;">What is "BABY GIANT FRAME " and "JUMPO FRAME" in TCP/IP Networking ?</span><br />
<blockquote>
<ul>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">The maximum size of an Ethernet frame should not exceed 1500 bytes + 18 bytes of Header</span></li>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">If the size of an ethernet frame is more than 1518 bytes, then it is called as Baby Giant Frame or Jumpo frame.</span></li>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">1519 to 1600 bytes means Baby Giant Frame</span></li>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">1601 to 9216 bytes means Jumpo Frame.</span></li>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">Mainly, the Switches are handling the Ethernet Frames.</span></li>
<li><span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">But Most of the switches do not accept Baby giant and Jumpos.</span></li>
</ul>
<br />
</blockquote>
<span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;"><span style="color: #993300;">So what? Why I am going to increase the size of a frame?</span></span><br />
<br />
<span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">Taken this situation. When you are using VLAN (which uses 802.1Q tagging), four more extra bytes will be inserted into the frame making the frame as a giant frame (1518 +4 = 1822 bytes) </span><br />
<span style="color: #993300; font-family: Arial, Helvetica, sans-serif; font-size: large;">Yes, yes, How to sort out this problem?</span><br />
<span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">If a port is declared as TRUNK PORT (instead of ACCESS PORT), then they will be able to handle these 1822-sized frames having the vlan tagging.</span><br />
<br />
<br />
<span style="color: #990000; font-family: Arial, Helvetica, sans-serif; font-size: large;">Is the any other method?</span><br />
<br />
<span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;">By configuration also we can increase the MTU size. (MTU stands for Maximum Transmission Unit).</span><br />
<span style="color: #0066cc; font-family: Arial, Helvetica, sans-serif; font-size: large;"><strong><br />Switch(config)#system mtu 1552</strong></span><span style="font-family: Arial, Helvetica, sans-serif; font-size: large;"><br /></span><br />
<br />
<br />
<br />
</td></tr>
</tbody></table>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-5838660690928870480.post-54941331430736347052009-10-20T11:10:00.001-07:002009-10-21T22:59:58.023-07:00VLAN Configuration Page 2<div style="font:normal 2px arial">A step by step tutorial showing how to configure VLAN - alongwith screenshots"
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<blockquote> <blockquote> <p><font color="#0066FF" size="7" face="Arial, Helvetica, sans-serif"><strong>All the commands related to VLAN</strong></font></p> <p> </p> <p><strong><font color="#0066FF" size="5" face="Arial, Helvetica, sans-serif">Common <br />
tasks on all Switches:</font></strong></p> <p><strong><font size="4">Give HostName to the switch</font></strong></p> <p><font size="4"><strong>Switch(config)#hostname SW1</strong></font></p> <p><font size="4"><strong>--------------------------------</strong></font></p> <p><font size="4"><strong>Disable DNS lookup<br><br />
SW1(config)#no ip domain-lookup</strong></font></p> <p><font size="4"><strong>------------------------------------</strong></font></p> <p><font size="4"><strong>Configure enable secret password <br><br />
SW1(config)#enable secret norah</strong></font></p> <p><font size="4"><strong>--------------------------------------</strong></font></p> <p><font size="4"><strong> Configure the default gateway</strong></font></p> <p><font size="4"><strong> SW1(config)#ip default-gateway 192.168.99.1</strong></font></p> <p><font size="4"><strong>------------------------------------------</strong></font></p> <p><font size="4"><strong>Configure a password to the console port<br><br />
SW1(config)#line console 0<br><br />
SW1(config-line)#password cisco</strong></font></p> <p><font size="4"><strong>-----------------------------------------</strong></font></p> <p><font size="4"><strong>Configure password to the vty ports<br><br />
SW1(config-line)#login<br><br />
SW1(config-line)#line vty 0 15<br><br />
SW1(config-line)#password cisco<br><br />
SW1(config-line)#login<br><br />
SW1(config-line)#end</strong></font></p> <p><font size="4"><strong>---------------------------------</strong></font></p> <p><font size="4"><br><br />
</font></p> <p><font color="#009999" size="4" face="Arial, Helvetica, sans-serif"><strong> <br />
Find out the existing VLANs in the Switch.</strong></font></p> <p><font size="4"><strong><font color="#333333">SW1#show vlan<br><br />
VLAN Name Status Ports</font></strong></font></p> <p><font size="4"><strong><font color="#333333"> - -- - - - - - -- </font></strong></font></p> <p><font size="4"><strong><font color="#333333"> 1 default active Fa0/1, Fa0/2, <br />
Fa0/3, Fa0/4<br><br />
Fa0/5, Fa0/6, Fa0/7, Fa0/8<br><br />
Fa0/9, Fa0/10, Fa0/11, Fa0/12<br><br />
Fa0/13, Fa0/14, Fa0/15,Fa0/16<br><br />
Fa0/17, Fa0/18, Fa0/19,Fa0/20<br><br />
Fa0/21, Fa0/22, Fa0/23,Fa0/24<br><br />
Gig1/1, Gig1/2<br><br />
1002 fddi-default active<br><br />
1003 token-ring-default active<br><br />
1004 fddinet-default active<br><br />
1005 trnet-default active</font></strong><br><br />
</font></p> <p> </p> <p><font size="4"><strong><font color="#0066FF" face="Arial, Helvetica, sans-serif">Let <br />
us shut down all the ports</font></strong><br><br />
SW1(config)#interface range fa0/1-24<br><br />
SW1(config-if-range)#shutdown<br><br />
SW1(config-if-range)#interface range gi0/1-2<br><br />
SW1(config-if-range)#shutdown</font></p> <p> </p> <p><font color="#0099CC" size="5"> <strong>Save the Configuration</strong></font></p> <p><font size="4"> SW1#copy running-config startup-config</font></p> <p> </p> <p><font size="4">VTP configuration Procedure:<br><br />
<br><br />
<br><br />
When you have more than one Switch, you can form a group. This is VTP.</font></p> <p><font size="4">When forming a group, one of them will be the Server and <br />
others will be clients</font></p> <p> </p> <p><font size="4">Consider we have 3 Switches SW1,SW2,SW3. Let us configure SW1 <br />
as server, SW2,SW3 as clients</font></p> <p><font size="4">Let us put the vtp domain name as 'brain' and vtp password <br />
as 'drain'<br><br />
SW1 is the VTP server; SW2 and SW3 are VTP clients.<br><br />
<br><br />
SW1(config)#vtp mode server<br><br />
<br><br />
SW1(config)#vtp domain brain<br><br />
<br><br />
SW1(config)#vtp password drain<br><br />
-------------------------------- <br><br />
SW2(config)#vtp mode client<br><br />
<br><br />
SW2(config)#vtp domain brain<br><br />
<br><br />
SW2(config)#vtp password drain</font></p> <p><font size="4">-------------------------------<br><br />
<br><br />
Configure the Trunk ports</font></p> <p><font size="4"> SW1(config)#interface range fa0/1-5<br><br />
SW1(config-if-range)#switchport mode trunk</font></p> <p><font size="4">configure one of the vlan as Native vlan:<br><br />
SW1(config-if-range)#switchport trunk native vlan 99</font></p> <p><font size="4">Make the ports active:<br><br />
SW1(config-if-range)#no shutdown</font></p> <p> </p> <p><font size="4"><br><br />
SW1(config)#vlan 10<br><br />
SW1(config-vlan)#name teachers<br><br />
SW1(config-vlan)#vlan 20<br><br />
SW1(config-vlan)#name students<br><br />
<br><br />
SW1(config-vlan)#vlan 99<br><br />
SW1(config-vlan)#name admin<br><br />
</font></p> <p><font size="4">Now check the SW2,SW3. You will find that bove configuration <br />
is automatically done by the server. </font></p> <p> </p> <p><font size="4"><br><br />
SW2#show vlan brief<br><br />
VLAN Name Status Ports<br><br />
----------------------------<br><br />
1 default active Fa0/1, Fa0/2, Fa0/4, Fa0/5<br><br />
Fa0/6, Fa0/7, Fa0/8, Fa0/9<br><br />
Fa0/10, Fa0/11, Fa0/12,Fa0/13<br><br />
Fa0/14, Fa0/15, Fa0/16,Fa0/17<br><br />
Fa0/18, Fa0/19, Fa0/20,Fa0/21<br><br />
Fa0/22, Fa0/23, Fa0/24, Gi0/1<br><br />
Gi0/2<br><br />
10 teachers active<br><br />
20 students active<br><br />
99 admin active<br><br />
<br><br />
Configure unique ip address for each switch::<br><br />
SW1(config)#interface vlan99<br><br />
SW1(config-if)#ip address 192.168.99.11 255.255.255.0<br><br />
SW1(config-if)#no shutdown<br><br />
SW2(config)#interface vlan99<br><br />
SW2(config-if)#ip address 192.168.99.12 255.255.255.0<br><br />
SW2(config-if)#no shutdown<br><br />
SW3(config)#interface vlan99<br><br />
SW3(config-if)#ip address 192.168.99.13 255.255.255.0<br><br />
SW3(config-if)#no shutdown</font></p> <p><font size="4">Test the connectivity between switches by ping.<br><br />
<br><br />
Now configure the access ports<br><br />
SW2(config)#interface range fa0/5-10<br><br />
SW2(config-if-range)#switchport access vlan 30<br><br />
SW2(config-if-range)#interface range fa0/11-17<br><br />
SW2(config-if-range)#switchport access vlan 10<br><br />
SW2(config-if-range)#interface range fa0/18-24<br><br />
SW2(config-if-range)#switchport access vlan 20<br><br />
<br><br />
<br><br />
Configuration of Router: <br><br />
If there are four ethernet port at the router, you can extend for cables <br />
one for each vlan.</font></p> <p> </p> <p><font size="4">But let us configure by vlan trunking method:<br><br />
<br><br />
<br><br />
<br><br />
<br><br />
R1(config)#interface fastethernet 0/1<br><br />
R1(config-if)#no shutdown</font></p> <p><font size="4"><br><br />
R1(config-if)#interface fastethernet 0/1.1<br><br />
R1(config-subif)#encapsulation dot1q 1<br><br />
R1(config-subif)#ip address 192.168.1.1 255.255.255.0</font></p> <p><font size="4"><br><br />
R1(config-subif)#interface fastethernet 0/1.10<br><br />
R1(config-subif)#encapsulation dot1q 10<br><br />
R1(config-subif)#ip address 192.168.10.1 255.255.255.0</font></p> <p><font size="4"><br><br />
R1(config-subif)#interface fastethernet 0/1.20<br><br />
R1(config-subif)#encapsulation dot1q 20<br><br />
R1(config-subif)#ip address 192.168.20.1 255.255.255.0</font></p> <p><font size="4"><br><br />
<br><br />
R1(config-subif)#interface fastethernet 0/1.99<br><br />
R1(config-subif)#encapsulation dot1q 99 native<br><br />
R1(config-subif)#ip address 192.168.99.1 255.255.255.0</font></p> <p><font size="4"><br><br />
note: vlan99 is made as native vlan. otherwise vlan1 will be the native <br />
vlan by default.<br><br />
<br><br />
Configure the webserver end <br><br />
R1(config)#interface FastEthernet0/0<br><br />
R1(config-if)#ip address 192.168.50.1 255.255.255.0 <br><br />
R1(config-if)#no shutdown<br><br />
<br><br />
<br><br />
<br><br />
<br><br />
</font> </p> </blockquote></blockquote> <br />
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