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T T L S C A N

ttlscan is a libnet/libpcap/libdnet based c program that tries to open
a tcp connection to a given port on a given host and reports the ttl value
of the answer packet to the user.
This might be useful to detect a firewall which fakes a service (i.e. http)
and forwards the request to another host. With the verbose option you might
be able to do some basic OS fingerprinting if the packets coming from the
webserver aren't modified (i.e. modulate state in OpenBSDs pf).

(c) 2002 by Hendrik Scholz <hendrik@scholz.net>
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L I C E N S E

ttlscan is released under the GPL, so feel free to patch/reuse/... this
code. I would like to get a mail in case of problems.

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D O W N L O A D

The latest version can be found on http://www.raisdorf.net/

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$Id: README,v 1.1 2002/06/23 03:43:45 hscholz Exp $
