Bottom line is that IP-layer interception - even when done "right" -
has fairly limited applicability for location of nearby content.
Though the technique is so widely mis-applied that it might still be
useful to define what "right" means.
That sounds overly optimistic.
user experience/expectation& context is verything
TCP end2end ness?
if you access a web page from our server, chances are its fectehc by one
of several httpds from one of a LOT of NFS or samba servers, which,
depending on local conditions.....
if you send audio on the net, its quite possible it goes through several
a2d and d2a conversions (.. thru a PSTN/SIP or 323 gateway) - in fact,
if you speak on an apparently end2end PSTN
transatlantic phone call, chances are your voice
is digitzed and re-digitzed several times by transcoder/compressers....
its the 21st century:
f you dont use end2end crypto, then you gotta expect people to optimize
their resources to give you the best service money can buy for the least
they have to spend.
hey, when you buy a book written by the author, it was usually typeset,
proofread, and re-edited by several other people....
even this email may not be from me...
"every decoding is an encoding"
maurice zapp from the Euphoric State University, in small world, by david lodge