Security of IP addresses assgined by DHCP

From: Jim (jim.garrett@lifeway.com)
Date: 03/06/03


From: "Jim" <jim.garrett@lifeway.com>
Date: Thu, 6 Mar 2003 07:22:42 -0800


We have been wrestling with the issue of the use of DHCP
and the ability for any outside system once inside the
building and configured for DHCP being able to connect to
our network. We are examing policy concerning wireless
access, yet for any contractor/vendor allowed in the
building they can connect any non-corporate approved
device to the network and receive access via DHCP.

Are their any DHCP configurations/software available that
would allow for some kind of "inspection" of the device
requesting an IP address from a DHCP server, and determine
if indeed this device is "approved" to receive an IP
address? I'm aware of techniques to utilize MAC addresses,
but this seems to potentially be an administration
nightmare.

Thanks

Jim



Relevant Pages

  • Re: networking private and public hosts questions
    ... some systmes in storage to create a test network. ... a WS to the child and attempted to pull an IP from the DHCP server, ...
    (microsoft.public.win2000.networking)
  • Re: Preventing DHCP from allocating IPs
    ... Each segment is physically separate with a Linux ... unknown MAC addresses firstly don't get a DHCP ... >> wants access to your network, they will have to come to you to obtain ...
    (Security-Basics)
  • Re: A little FYI
    ... > fix for a different problem or end up making the same configuration ... Maybe faulty network equipment, ... > to look at what might interfere with DHCP. ... you were not here as I was trying to get the card to stay ...
    (comp.security.firewalls)
  • Cable Connectivity
    ... address for the Network Card with network address 00402B2F688C. ... The DHCP Client service on your computer did not receive a response ... If connection with the network is not established using this APIP ... the DHCP Client service will try to contact the DHCP server ...
    (microsoft.public.windowsxp.general)
  • Re: Cable Connectivity
    ... > address for the Network Card with network address 00402B2F688C. ... > The DHCP Client service on your computer did not receive a response ... > If connection with the network is not established using this APIP ... the DHCP Client service will try to contact the DHCP server ...
    (microsoft.public.windowsxp.general)