Penetration Testing mailing list archives
Re: Discovering network subnets
From: Craig Holmes <leusent () link-net org>
Date: Sun, 21 Aug 2005 02:10:23 -0400
On Saturday 20 August 2005 07:07, hannibal blog wrote:
I'm not sure the network is a C class one, but I'm surprised that such an ip adress is an host IP.
AFAIK, in the most strict and archaic IP address scheme (depending on the first octet) this could NOT be a usable host. This is because in a /24 x.x.x.0 is considered a wire address and/or broadcast address for the subnet. In reality today, some administrators use the first and last IP address anyway. In rarely breaks any network functionality and it's use is actually specified in an RFC #(I don't know off the top of my head). Blame it on the (so-called) shortage of IPv4 addresses. So long story short, just because that IP is in use doesn't mean that subnet ISN'T a /24. Craig -- KMail: 1.7.2 Linux Weltall 2.6.11.3 #4 Sun Mar 27 11:04:56 EST 2005 i686 AMD Athlon(TM) XP 1700+ AuthenticAMD GNU/Linux ------------------------------------------------------------------------------ FREE WHITE PAPER - Wireless LAN Security: What Hackers Know That You Don't Learn the hacker's secrets that compromise wireless LANs. Secure your WLAN by understanding these threats, available hacking tools and proven countermeasures. Defend your WLAN against man-in-the-Middle attacks and session hijacking, denial-of-service, rogue access points, identity thefts and MAC spoofing. Request your complimentary white paper at: http://www.securityfocus.com/sponsor/AirDefense_pen-test_050801 -------------------------------------------------------------------------------
Current thread:
- Discovering network subnets hannibal blog (Aug 20)
- Re: Discovering network subnets Craig Holmes (Aug 21)
- Re: Discovering network subnets Kelly Scroggins (Aug 21)
- Re: Discovering network subnets Kelly Scroggins (Aug 21)
- <Possible follow-ups>
- RE: Discovering network subnets Payton, Zack (Aug 20)
- RE: Discovering network subnets Timothy Dillman (Aug 21)
- Re: RE: Discovering network subnets nobody (Aug 21)
- Re: RE: Discovering network subnets chad (Aug 22)
- Re: RE: Discovering network subnets hannibal blog (Aug 23)