On Wed, 22 Apr 2009 07:56:20 -0500, msg wrote:

Bob Larter wrote:

msg wrote:

snip
Indeed, and I don't expect a large operator like Cox to do it, but
some ISPs
NAT their clients with RFC-1918 addresses, all of which translate to a
single
public IP, ergo, many NNTP users may all originate from a single IP.


True, but it's quite rare at ISPs. NATing is usually done in businesses,
rather than at ISPs.


From time to time (for many years now) I deal with issues involving H.323
and RTP connectivity (payload contains IP information) and I am always
surprised by the number of ISPs I encounter that NAT their clients. These
are mostly small operators and often rural. I too run a neighborhood WISP
that NATs the clients, many of whom use the same O/S and NNTP user agents,
and I would be quite distressed if newsgroup readers assumed that IP
addresses and message headers uniquely identify the poster who just happened
to be a neighbor and not myself.

Michael


The idiot that made the remark that "many NNTP users may all originate
from a single IP" is about as dumb as it gets.

For one thing, they are required by law to uniquely ID ALL of their
subscribers.

So to that idiotic asswipe... show us an example of your "several
users, same IP" claim, jerk.