Re: VLAN hopping - demonstration

From: David M. Zendzian (dmz@dmzs.com)
Date: Tue Oct 17 2006 - 19:52:39 EDT


Have you thought about just plugging in a linux machine (or cdbootable)
and having it take care of the vlan stuff for you (join all VLANS from
one linux box).

dubaisans dubai wrote:
> How do you demonstrate VLAN hopping?. I am trying to show this to a
> customer who has mutliple DMZ segments configured as Layer2 VLANs on a
> Cisco 6500 switch. There is NO trunk port on this switch but DTP is
> turned on on all ports.
>
> Is it enough to cascade another L2 switch on an access port [ say VLAN
> 100] of the 6509, connect a desktop on this second switch and send a
> packet with different VLAN ID [say VLAN 200] on the 6509.
>
> Am I on the right track?
>
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