Penetration Testing mailing list archives
Re: Find out the subnetting of a company
From: Miles Stevenson <miles () mstevenson org>
Date: Tue, 20 Jul 2004 12:34:33 -0400
On Tuesday 20 July 2004 12:22 pm, J.A. Terranson wrote:
Dangr Will Robinson! This is not necessarily so. Early BSD and BSD derived systems/devices may also answer to broadcasts on the "lower end". Historically, the broadcast was originally designed to *be* the same as the network address, it is only recently that the last address has become the standard. There are any number of older, and in somecases (like the Nortel CVX call concentrators) newer devices answering on both the top and bottom addresses.
I was not aware of this, but great point! It would be interesting to try out some experimentation with some of these older BSD systems and incorporate some clever workarounds. If anyone has any VM images of such a case that they would like to share (licenses permitting of course) I would love to toy with it. Hmmmm. Perhaps a little more R&D on the topic would be helpful to the infosec community (assuming there are still questions on this topic that have yet to be answered in a public write-up). It might be worth while to take a look at how some of the automated network mapping tools out there handle this. Maybe there are some improvements to be made. Comments/Suggestions? -- Miles Stevenson miles () mstevenson org PGP FP: 035F 7D40 44A9 28FA 7453 BDF4 329F 889D 767D 2F63
Current thread:
- Find out the subnetting of a company il . prof (Jul 19)
- Re: Find out the subnetting of a company Miles Stevenson (Jul 20)
- Re: Find out the subnetting of a company J.A. Terranson (Jul 20)
- Re: Find out the subnetting of a company Miles Stevenson (Jul 20)
- Re: Find out the subnetting of a company Andy Cuff (Jul 21)
- Re: Find out the subnetting of a company J.A. Terranson (Jul 20)
- RE: Find out the subnetting of a company easternerd (Jul 21)
- Re: Find out the subnetting of a company Tim (Jul 21)
- <Possible follow-ups>
- RE: Find out the subnetting of a company Dieter Sarrazyn (Jul 20)
- Re: Find out the subnetting of a company Volker Tanger (Jul 21)
- RE: Find out the subnetting of a company Rob J Meijer (Jul 21)
- Re: Find out the subnetting of a company David M. Zendzian (Jul 21)
- Re: Find out the subnetting of a company Tony Carter (Jul 22)
- Re: Find out the subnetting of a company Martin Mačok (Jul 23)
- RE: Find out the subnetting of a company Jerry Shenk (Jul 28)
(Thread continues...)
- Re: Find out the subnetting of a company Miles Stevenson (Jul 20)