Penetration Testing mailing list archives
RE: FW: Mapping Class A network ( any easy trick?)
From: "Navin Johnson" <printerscanner () hotmail com>
Date: Tue, 08 Feb 2005 12:09:37 -0600
Here is how I attack this problem: - Use DNS first to get a list of potentially live IPs - Try doing a zone transfer to get a list of IPs- Try resolving the IPs to hostnames and look for PTR records (perl works well for this, Michael Fuhr wrote a script called mresolv.pl that does this)
- Traceroute to the live IPs to get a list of all the network device IPs- If they use a standard like all routers are at .254 or .1 or .100, make a list of potential IPs for routers and ping those. - Take a listing of all the live addresses you have at this point and break them into class C ranges.
- Ping the class C rangeIf you can get access to a router, you can then do a 'show ip route' to see if you missed any ranges.
-----Original Message----- From: John Thomas [mailto:mjohn2000_99 () yahoo com] Sent: Tuesday, February 08, 2005 11:42 AM To: pen-test () securityfocus com Subject: Mapping Class A network ( any easy trick?) I am about to do a penetration testing on a "Class A network" and wondering how I can map the network without pinging 17 million IPs.(nmap -Sp 10.0.0.0/8) I did some research and the best information I got is from one of the earlier post on this list(http://seclists.org/lists/pen-test/2004/Jul/0067.html) . It was to use broadcast IPs for pings. But it may miss some subnets. Is that the best way to it? If not, please adviseThe information contained in this communication and its attachment(s) is intended only for the use of the individual to whom it is addressed and may contain information that is privileged, confidential, or exempt from disclosure. If the reader of this message is not 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 postmaster () owenscorning com and delete the communication without retaining any copies. Thank you.Translations available: http://www.owenscorning.com/emailfooter.html
Current thread:
- Mapping Class A network ( any easy trick?) John Thomas (Feb 08)
- Re: Mapping Class A network ( any easy trick?) alank (Feb 08)
- Message not available
- Re: Mapping Class A network ( any easy trick?) alank (Feb 09)
- Message not available
- Re: Mapping Class A network ( any easy trick?) alank (Feb 08)
- Re: Mapping Class A network ( any easy trick?) Jordan Wiens (Feb 08)
- Re: Mapping Class A network ( any easy trick?) Ismael Gonzalez (Feb 11)
- <Possible follow-ups>
- RE: Mapping Class A network ( any easy trick?) Moonen, Ralph (Feb 08)
- Re: Mapping Class A network ( any easy trick?) Tim (Feb 09)
- RE: FW: Mapping Class A network ( any easy trick?) Navin Johnson (Feb 08)
- Fw: Re: Mapping Class A network ( any easy trick?) Volker Tanger (Feb 09)
- RE: Mapping Class A network ( any easy trick?) Henderson, Dennis K. (Feb 09)
- RE: Mapping Class A network ( any easy trick?) Brass, Phil (ISS Atlanta) (Feb 09)
- RE: Mapping Class A network ( any easy trick?) Moonen, Ralph (Feb 09)
- Re: Mapping Class A network ( any easy trick?) Tim (Feb 11)
- RE: Mapping Class A network ( any easy trick?) robert (Feb 09)
- RE: Mapping Class A network ( any easy trick?) Jeff Gercken (Feb 09)
- Re: Mapping Class A network ( any easy trick?) John Thomas (Feb 11)