scanning all 65,535 ports of a /16 subnet in 45 min
scanning all ports in the reserved Class C range,
from 192.168.0.0 to 192.168.255.255, in 45 min scanning all 65,535 ports of a /16 subnet in 45 min
scanning all ports in the reserved Class C range,
from 192.168.0.0 to 192.168.255.255, in 45 minI realize lots of people are simply in the habit of saying "Class C" when what they really mean is a /24, "Class B" for a /16, etc. but classless routing[0] has been around for 20 years now and these terms need to go away.
[0]: http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing
"Note that (in pre-CIDR notation) the first block is nothing but a single class A network number, while the second block is a set of 16 contiguous class B network numbers, and third block is a set of 256 contiguous class C network numbers."
So it is common for crusty old network engineers and sysadmins to refer to 192.168/16 as "the class C" private block, even when they understand that you can subnet it however you'd like.
Right, I realized that when s/he said "reserved Class C range". It was more of a general observation. I always forget I have to be extremely specific here on HN.
Case in point: 11.5.0.0/16 is not a Class B network and never was. (11.0.0.0/8, however, was/"is" a Class A network).
/16 != Class B network.
It's not a class B network under the old system. Because under the old system 11.5.0.0/16 didn't exist.
But you can make such a network now, and if you were to classify its size the appropriate letter is 'B'.