RE: Filtering DHCP Assignments by MAC Address
From: Jimmy Sansi (jsansi_at_ritzfoodservice.com)
Date: 06/20/03
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Date: Fri, 20 Jun 2003 08:20:14 -0700 To: "'Jake Frost'" <jakefr0st@hotmail.com>, <FOCUS-MS@SECURITYFOCUS.COM>
You can filter out MACs, however that would be rather
tedious to compile a listing of all valid MAC addresses.
Any switch worth its salt can "lock down" a port based
on a MAC. However keeping this up to date on a large
network is quite a bit of overhead.
My suggestion would be to incorporate some sort of password
validation and/or a VPN(which would provide validation)
depending on how available the network is(ie: wireless) as
well to protect against unathorized users from sniffing the
network segment and then spoofing their MAC address.
-Jimmy
-----Original Message-----
From: Jake Frost [mailto:jakefr0st@hotmail.com]
Sent: Friday, June 20, 2003 7:16 AM
To: FOCUS-MS@SECURITYFOCUS.COM
Subject: Filtering DHCP Assignments by MAC Address
We have just converted to DHCP and would like to limit the ability of people
to plug in to the network without authorization. In Win2K is it possible to
limit DHCP assignments by MAC address or some other mechanism to keep rogue
machines out? My server admins have been researching this but can't find a
method to achieve what we want. Thanks.
Jake
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- Previous message: Floyd Russell: "Windows Event Logs"
- In reply to: Jake Frost: "Filtering DHCP Assignments by MAC Address"
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