alt.certification.network-plus - Re: IP Class Confusion

Author

Re: IP Class Confusion

JimW±

2003-05-31, 5:24 pm

Class A =3D first bit is 0 (1-127)
Class B =3D first 2 bits are 10 (128-191)
Class C =3D first 3 bits are 110 (192-223)

Originally subnet masks were not transmitted - default subnet masks were =
ALWAYS used.
Hardly any routers use this info anymore, it is just a way of learning =
it now.

CJ <aplaceinthesun@insightbb.com> wrote:
> ABCDEFGHWhy isn't 192.169.10.10 listed as a Class B IP? Any help is
> appreciated!

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