what is 192.168.0.0/24

what is 192.168.0.0/24
what does the /24 mean?

stinkbomb <(E-Mail Removed)> wrote:

> what is 192.168.0.0/24
> what does the /24 mean?
>

Hi,
the /24 means that 24 bits of the 32 bit IP address will form the network
portion of the address. So for your above network, it means a network
address of 192.168.0.0, a broadcast address of 192.168.0.255 and a subnet
mask of 255.255.255.0. For more information on this addressing scheme, see
http://public.pacbell.net/dedicated/cidr.html.

--

Martin

stinkbomb wrote:
> what is 192.168.0.0/24
> what does the /24 mean?

It designates a network address in the CIDR notation (Classless
Inter-Domain Routing) which is defined in RFC 1519. It provides
a more flexible notation of network addresses for subnets. The Number
after the slash (/) in your case 24 bescribes how many bits of an
anddress a uses as network bits, since here the typical subdivision
in classes (A=8,B=16,C=24 bits) is no longer the only way to subclass.

So with 192.168.0.0/24 you have still your typical C-class IPv4 network
with addresses form 192.168.0.0 - 192.168.0.255.

But you could have the following as well: 192.168.0.0./22
this denotes IPv4 addresses starting at 192.168.0.0 and ending at
192.168.3.255 inclusive, with 192.168.3.255 being the broadcast address
for the given network.

Hope it helps.

Bye,
Ed

stinkbomb wrote:
> what is 192.168.0.0/24
> what does the /24 mean?

It's short for a mask of 255.255.255.0

basically ignore the 192.168.0 part and only pay attention
to the last quad

stinkbomb <(E-Mail Removed)> writes:

>what is 192.168.0.0/24
>what does the /24 mean?

[...]


CIDR notation. RTF RFC1878.

Michael
--
Michael Buchenrieder * (E-Mail Removed) * http://www.muc.de/~mibu
Lumber Cartel Unit #456 (TINLC) & Official Netscum
Note: If you want me to send you email, don't munge your address.

stinkbomb wrote:

> what is 192.168.0.0/24
> what does the /24 mean?

That tells you how many bits are in your subnet mask. In your example, the
leftmost 24 bits. The subnet mask is used to determine which part of an IP
address is a network address and which is a host address.

--

Fundamentalism is fundamentally wrong.

To reply to this message, replace everything to the left of "@" with
james.knott.

Thanks everyone for your help!
you're all right on the money!

stinkbomb wrote:
>
> what is 192.168.0.0/24
> what does the /24 mean?

I'm not sure if I fully understand.
so, if i want to have a network with addresses 192.168.0.0, 192.168.0.1,
192.168.0.2,...192.168.0.254,...192.168.254.254
that would mean 65025 computers?
that would mean: 192.168.0.0/16?

"stinkbomb" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I'm not sure if I fully understand.
> so, if i want to have a network with addresses 192.168.0.0, 192.168.0.1,
> 192.168.0.2,...192.168.0.254,...192.168.254.254
> that would mean 65025 computers?

Yes

> that would mean: 192.168.0.0/16?

Not quite - you should go up to 192.168.255.254

HTH

Tauno Voipio
tauno voipio @ iki fi