[plug] IP address

[Michael Hunt]

> "Jon L. Miller" wrote:
> >
> > Can someone explain to me how the following address can have a class "C"
> > subnet mask (IP addr: 10.203.57.1).
> >
> Any IP address can have any subnet mask. A subnet mask is only used to
> determine the network address component and host address component of
> the IP, hence 10.203.57.1 is host address 1 on network 10.203.57 Subnet
> masks are applied locally at the host interface only.
>
> Garth

Basically what Garth is saying is that even though the 10 range is often
used as an "A" class network, there is nothing stopping the admin of the
network making it a "c" subnet if he feels that it helps him admin it
better. Personally if you do plan to use "c" class addresses I find that the
192.168 range is the best to work with as most doco use it as its example.
For most sites this is going to be more addresses than they need
(effectively the private "c" class range is 254 "c" classes inside a "B"
class !!!).