I just caught up with my mail and saw this posting.
One way of knowing where a workstation is connected is to implement VLANs.
I would suggest that for each floor and/or office location you may have,
you assign it a VLAN.
Then set up a W2k Advanced Server with a DHCP server on it, serving all the
different VLANs.
So, for each VLAN you would get a subnet associated with it.
That way, knowing the workstation's IP address you would know what VLAN and
obviously what floor/office its located.
uh... just my 2 cents ...
Cheers,
/Luiz George Ramsey Barreiros
Analista Assistente de Informatica
GEPRO NRT 1-RJ/SETAR
Banco do Brasil S.A.
(21) 3808-3616 (21) 3808-6101
Para: "Steven
Satelle \(Service Desk\)"
"Patrick J. LoPresti" <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> cc: "'Faron Hopper'"
<[EMAIL PROTECTED]>,
Enviado Por: "Perl-Win32-Admin
\(E-mail\)"
[EMAIL PROTECTED] <[EMAIL PROTECTED]>
e.com Assunto: Re: FW:
Cisco - Is it possible?
12-12-2003 11:04 EST
"Steven Satelle (Service Desk)" <[EMAIL PROTECTED]> writes:
> Its not the user I want to know it is the script, if the script
> knows the switch has changed, then it knows the pc has moved, so it
> asked the user for his new location. then It emails it to us
That is kind of a clunky design.
You would be better off creating a list mapping switch ports to
network jacks, another list mapping network jacks to office locations,
and a third list mapping MAC addresses to machines. (You should have
such maps anyway; they are very useful for troubleshooting network
problems.)
Then you can query each of your switches' FDBs (dot1dTpFdbTable)
periodically. Just dump them all to a file and watch for changes.
This will let you detect when a machine moves without bugging the
owner. And it is centralized, and it works regardless of the user's
OS, and it detects ALL network devices including the ones you were not
expecting.
The FDB is not persistent; entries will time out if a machine is
inactive. So you will want to ignore it when a MAC simply disappears
or reappears, while still noticing new MACs appearing or old ones
moving around. But this is not rocket science.
- Pat
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