naftoli@aecom.YU.EDU (Robert N. Berlinger) (11/02/87)
I'm not sure I understand subnetting fully. Assuming you have a class C
address -- will subnetting allow you to have more than 255 hosts on the
network?
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Robert N. Berlinger naftoli@aecom.yu.edu
Supervisor of Systems Support
Albert Einstein College of Medicine Compuserve: 73047,741
UUCP: ...{philabs,cucard,pegasus,rocky2}!aecom!naftoli GEnie: R.BerlingerJBVB@AI.AI.MIT.EDU ("James B. VanBokkelen") (11/07/87)
Subnetting is explained best in RFC950. Most of what it is good for is allowing you to divide one of the larger types of network (Class A or Class B - 24 or 16 bits worth of host number) up into smaller administrative or cable-oriented networks. You are assumed to have IP routers (gateways) between them to handle internal forwarding, but to the rest of the world, you look monolithic (i.e. they send to net 128.127, and don't care that it has 254 subnets, each of the form 128.127.xxx, because your gateways hide that from the world). You can use it on class C addresses, but with only 254 hosts, there is less to divide. Almost all subnetting implementations allow you to do your division on bit boundaries, but there have been a few which could only do it by bytes. jbvb