nanog mailing list archives

Re: Purpose of spoofed packets ???


From: Matthew Huff <mhuff () ox com>
Date: Wed, 11 Mar 2015 12:07:46 +0000


Nmap has an option to "hide" your real IP among either a provides or IP
list of IP addresses.

" D *<**decoy1**>*[,*<**decoy2**>*][,ME][,...] (Cloak a scan with decoys)

Causes a decoy scan to be performed, which makes it appear to the remote
host that the host(s) you specify as decoys are scanning the target
network
too. Thus their IDS might report 5­10 port scans from unique IP addresses,
but they won't know which IP was scanning them and which were innocent
decoys. While this can be defeated through router path tracing,
response-dropping, and other active mechanisms, it is generally an
effective technique for hiding your IP address."

http://nmap.org/book/man-bypass-firewalls-ids.html
On 11 Mar 2015 02:17, "Steve Atkins" <steve () blighty com> wrote:

Thanks. I thought it was something obvious that I was missing. This makes
sense.


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