An L3 traceroute gives you a very good idea of which L2 devices are in
the path between source and destination - if it does L3, has to do L2
(and L1 ;))
The question is: what are you trying to achieve? What additional
information would you get from a L2 traceroute that you cannot obtain
from an L3 traceroute + additional tools to identify the specific L3
device?
Agreed: your packet *might be* traversing one or more
switches/bridges/translational bridges which would be transparent to
your L3 traceroute.
Cisco does implement an L2 traceroute feature - but many preconditions
have to be met. Check:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/swcg/l
2trace.htm
A generic L2 traceroute looks to me like a difficult thing to do.
Dario
-----Original Message-----
From: riftman [mailto:riftman@gmail.com]
Sent: Friday, December 02, 2005 6:03 AM
To: pen-test@securityfocus.com
Subject: Layer 2 Trace
Hello,
I would like to know if it is possible to do like a traceroute
but on layer 2.
I need to see the equipment that is between source and target
machines.
Thanks in advance;
PS: Sorry my English, this is my first post ... be kind
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