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CCNA Test: How to enable Trunk at a Router?

Posted on 2009-04-08
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Last Modified: 2012-06-27
Hi,

1) please see the Attachment
2) Please give the IOS Command to enable TRUNK on Fa0/1 interface of the router R1
3) Thank you

Tjie
Trunk001.jpg
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Question by:tjie
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3 Comments
 
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Expert Comment

by:that1guy15
ID: 24103188
On your router:

int f0/1
no shut

int f0/1.1          
description Native VLAN 1
ip address <ip address for VLAN1>
encapsulation dot1q Native

int f0/1.10
description VLAN 10
ip address <ip address for VLAN10>
encapsulation dot1q

int f0/1.20
description VLAN 20
ip address <ip address for VLAN20>
encapsulation dot1q

This config is assuming VLAN 1 is still your native vlan on the switch (set by default). Also am assuming you are using dot1q encapsulation. If you are using ISL then replace dot1q with ISL

Hope this helps
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Accepted Solution

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that1guy15 earned 2000 total points
ID: 24103202
Ehhh sorry missed one thing, here is the correct commands

int f0/1.1          
description Native VLAN 1
ip address <ip address for VLAN1>
encapsulation dot1q Native

int f0/1.10
description VLAN 10
ip address <ip address for VLAN10>
encapsulation dot1q 10 <---missing this on first post

int f0/1.20
description VLAN 20
ip address <ip address for VLAN20>
encapsulation dot1q 20 <---missing this on first post
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LVL 23

Expert Comment

by:that1guy15
ID: 24103772
Just as a side note. If you are working towards your CCNA (or other cisco certs) I highly recommend the Cisco Press Command reference. These books pack all the commands you will need for each exam into them and explains what each command does line by line. Great resources and I still use my CCNA command guide today.

http://www.ciscopress.com/bookstore/product.asp?isbn=1587201933

Dont get me wrong I dont mind helping and answering questions but they really do give a lot of good information, especially for the test.
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