Dave Crocker rites:
>1. They have heard an estimate that 8% of those attached to the Internet
>have firewalls. This was a second-hand comment and could not be traced to
>its source. So, my question is: Does anyone know a legitimate estimate
>and can they cite how it was derived?
Depends on how you define "attached". If you count all of the dial-in, PPP,
and SLIP connections by a single PC, I would suspect that the number is high.
If, on the other havd you mean "real" domains with multiple nodes and a DNS,
I suspect it might be low unless you do not count well ACLed Ciscos. It is
a matter of definitions.
>What is the definition that folks consider appropriate? A
>single machine between me and the Internet is a very different setup from a
>double-router and proxy-server setup. Both are probably classed as
"Any device intended to block unwanted access to a network by an exterior