RE: VLANs confusing - Explained

["Erick Jensen" <ejensen () vibrant com>]

That's exactly what I was trying to remember!  Thanks for the refresher,
every day there's so much to remember and even more to forget.
Especially in the Cisco world....

-----Original Message-----
From: Michael Dieroff [mailto:michael () bluescreenit co uk] 
Sent: Wednesday, November 15, 2006 5:10 PM
To: Erick Jensen; 'Raj Shaz'; security-basics () lists securityfocus com
Subject: RE: VLANs confusing - Explained

Hi Erick and list,

The password you are referring to belongs to a protocol called VTP (VLAN
Trunking Protocol). This protocol is responsible for dynamically
distributing VLAN's across the layer 2 network to all devices that are
part
of the VTP domain and have the correct password and VTP mode (Server,
Client
or transparent).

VLAN tagging cannot have passwords attached as this would imply that all
devices communicating with the switch would need to have a software area
to
configure the 'vlan' password... This option does not even exist with a
GUI
rich o/s like XP. 

The VLAN password referred to, I am pretty sure, refers to the likes of
the
VTP domain password.

Mike.

 


Michael Dieroff


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