Nmap Announce mailing list archives
nmap VS DHCP
From: Ajay Gupta2 <Ajay.Gupta2 () ey com>
Date: Wed, 24 May 2000 11:08:20 -0400
Hello All, I recently came across successive nmap scans of a network yielding significantly different machines up (in terms of IP addresses). The network has a Class C address and is using DHCP to assign the IPs to its various hosts, several of which did not have hostnames. Nmap identified the IP addresses, hostnames, open ports and OS of machines that were up. Since the network was using DHCP and not all machines had host names, there was little to tie the remaining data (IP address, open ports & OS) to the machines on the network, as the IP addresses (by which machines are generally identified) changed between the scans. Therefore, these nmap scan results are less valuable for fingerprinting as the data is not tied directly to the machines. Is it possible to having nmap identify MAC addresses which is less likely to change (I believe this was discussed some time ago on this list). In the least, is it possible for nmap to inform whether or not the network is running DCHP? Any thoughts? Thanks, - Ajay Gupta Ernst & Young eRisk Solutions 703-288-2270 ******************************************************************************* Note: The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Ernst & Young LLP *******************************************************************************
Current thread:
- nmap VS DHCP Ajay Gupta2 (May 24)
- Re: nmap VS DHCP Justin (May 25)
- Re: nmap VS DHCP H D Moore (May 25)