IP Addressing

Please explain in detail why the all zeros and all ones subnets are not used.

Help needed as soon as possible.

These addresses are reserved.

All zeros mean that the address is for this network or highway only.

All ones are used as a broadcast to all hosts on the network or highway.

Hope this is detailed enough!

The answer above is correct, but since you said in detail.. the best places to look are the RFCs
www.ietf.org/rfc.html

or even better.. this little cisco document i dug up for you

www.cisco.com/en/US/tech/tk648/tk361/tec...186a0080093f18.shtml


Hope it helps.