Mock lab 1 : TASK 1.3 (Router on a stick)

From: ismail el-shalh (ishelh_mdsa@yahoo.com)
Date: Fri Sep 01 2006 - 19:07:40 ART


Dear Brians, and all :

I am not really understanding task 1.3 completely ,
     
Task states :
   
  - Configure Trunk between R6s interface G0/0 and Sw1s interface F0/6
  - Traffic from VLAN 263 should not be tagged with a VLAN header when it is sent over this trunk link
   
     You said that we should not use dot1q trunking in the previous task (1.2) because If we did use Ddot1q then we have to enable the vlan dot1q tag native globally and by this we did not accomplish any thing.
     
I did this mistake, I configured the previous task by enabling dot1q trunking between F0/13 Sw1 and F0/13 Sw2.
     
When I start pinging from R6 to BB3, I was not getting any traffic, as soon as I enabled vlan dot1q tag native globally on SW1 every thing start working.
     
Why R6 start getting the traffic from BB3 by merely enabling this global command?
     

What is the relation between enabling something other than dot1q on fas0/13 and enabling dot1q on fas0/6
   
      Any clarification will appreciated.
Ismail
  
                                 
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