[KLUG Members] smb says wins has died
Buist Justin
members@kalamazoolinux.org
Mon, 29 Jul 2002 10:26:39 -0400
> does. The /NN indicates the number of bits (starting from
> the front of
> the ip address) that are to remain fixed. So since each
> number between
> dots is an octet or byte of of 8 bits, the /24 means that the first
> three numbers should remain fixed, but that the last byte (.1) can
> included any number (1 through 255). A /32 netmask indicates
> just that
> one IP address, and a /8 would indicate a class A address.
Actually not all /8s are a real Class A block. A Class A block must have it's first bit set to 0, so only a /8 between 0.x.x.x and 127.x.x.x is really a Class A. A Class B has the first to bits set to 10 (128.x.x.x to 1921.255.x.x) and a class C starts with bits 110 (192.0.0.x to 223.255.255.x)
So, 191.0.0.0/8 would not be a Class A .. it would 2^16th continuous Class C's.
Yes, I'm splitting hairs... but I find it interesting, thought somebody else might too.
Justin Buist