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InterVLAN Routing

November 11th, 2018 Go to comments

Note: If you are not sure about InterVLAN, please read our InterVLAN Routing Tutorial.

Question 1

Question 2

Question 3


To enabe encapsulation on a subinterface we have type the “encapsulation” command under that subinterface, not the main interface. An example of configuring encapsulation on subinterface of Fa0/1 is shown below:

Router(config)#interface f0/0
Router(config-if)#no shutdown

(Note: The main interface f0/0 doesn’t need an IP address but it must be turned on)

Router(config)#interface f0/0.0
Router(config-subif)#encapsulation dot1q 10
Router(config-subif)#ip address
Router(config-subif)#interface f0/0.1
Router(config-subif)#encapsulation dot1q 20
Router(config-subif)#ip address

Note: In the “encapsulation dot1q 10”, number 10 is the VLAN applied to that subinterface. Or you can understand that the subinterface belongs to that VLAN.

Question 4


The causes of slow interVLAN are usually duplex mismatch or collision domain issues, user misconfiguration. For more information please read: http://www.cisco.com/c/en/us/support/docs/lan-switching/virtual-lans-vlan-trunking-protocol-vlans-vtp/23637-slow-int-vlan-connect.html#troubleshoot_slow_interv

Question 5

Question 6

Question 7

Question 8


This question only asks about enable router-on-stick on a switch, not a router. We don’t have subinterface on a switch so B is not a correct answer.

Question 9

Question 10

Question 11

Question 12

Comments (3) Comments
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  1. CCNA.AM
    October 5th, 2019

    Why i can’t see the questions. i can see only 3 explanations but none of the questions

  2. jh
    November 13th, 2019

    Surely q11 is D

  3. jh
    November 13th, 2019

    wondered why there werent comments on q11. only then did i see this was page 2 and was missing the jamboree on page 1. still think its D.!

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