Hi guys, I am confused how vlan hopping is actually working. I always read that you will send frame with 2x 802.1Q headers in it. Outer frame will be using native vlan tagging and inner one desired destination vlan tag.
Outer tag should be dropped and frame propagated via trunk (as native vlan) to 2nd switch which will switch the frame according to inner tag vlan. Unfortunatelly I am not able to test it right now on real switches. But according to my understanding if access port on switch receives tagged frame it will automatically drop it. I found link which is supporting my assumption: http://packetlife.net/blog/2010/feb/22/experimenting-vlan-hopping/ Therfore I am confused. Regs, Ivan _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
