OS Fingerprints

[BSK <bishan4u () yahoo co uk>]

Dear All,

Some time back I came across a document that listed a
table with Operating systems and their TTL that helped
identify an operating system.

I've been trying to search that document on Internet
and my machine but not successful yet. Can someone
point me to that or similar document.

Basically I'm looking for information which helps us
identify the target operating system from its TTL
field obtained while ping. The document for example
listed that if the TTL is 128 its likely to be M$ and
if its 64 its likely to be Cisco Router or switch.

Await your reply.

rgds,
Bshan


                
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