[plug] re: re: IP address

Steve Grasso steveg at calm.wa.gov.au
Fri Aug 20 09:46:59 WST 1999


>> 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.

In general, a subnet mask of 255.255.255.0 will be sufficient for a class c
network.
For more info see (eg)

A short discussion of Class C IP addressing:
http://wwworg.uio.no/in312/Studbok/IP-adresser/class_c.html

Class C subnet mask table:
http://www.geoprospects.com/dedicated/SubnetZero.htm

Cheers,
Steve


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