From: Scott Morris (smorris@internetworkexpert.com)
Date: Tue Feb 10 2009 - 13:39:34 ARST
The unforunate part with that would be if the design were such that the VLAN
had multiple devices/ports connected.
While certainly a good idea to see what is available, it doesn't really
narrow things down as far as the DIRECTLY CONNECTED part being a L2
interface.
If you have a /30 or /31 mask, this certainly does narrow things down
(although you could just look at it and figure out the remaining IP!). :)
When in doubt, hack 'em all!
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jared Scrivener
Sent: Tuesday, February 10, 2009 10:01 AM
To: 'Jersey Guy'; 'Cisco certification'
Subject: RE: what's on the other side of a GigE port?
Do you know the subnet addresses? If so, you could ping the subnet broadcast
address and then look in the ARP table for the IP address and MAC of the
reply packets (if the ping response wasn't clear enough).
Cheers,
Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
Technical Instructor - IPexpert, Inc.
Telephone: +1.810.326.1444
Fax: +1.810.454.0130
Mailto: jscrivener@ipexpert.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jersey Guy
Sent: Tuesday, 10 February 2009 9:46 AM
To: Cisco certification
Subject: what's on the other side of a GigE port?
Ya I know, this is Networking-101, shame on me....but I can use some help
here....
Assuming there's no CDP running on the box, how do I find out the IP address
of the devices that are connected to GigE ports on my WS-C4948?
*GigabitEthernet1/23 unassigned YES unset up
up
GigabitEthernet1/24 unassigned YES unset up
up
*Assume these are dedicated switch ports with only one device on the other
end. *
*thanks, JG*
*
Blogs and organic groups at http://www.ccie.net
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