On Sun, 2002-08-25 at 12:56, Miark wrote: > > In some previous posts I have noticed people refering to their IP address > > range as xxx.xxx.xxx.xxx/xx. > > > > Just curious as to what the /xx refers to. Is it some type of range? > > CIDR notation takes advantage of this numbering trick to represent the > whole submask by only counting how many bits represent machine numbers. > So 192.168.0.1/8 is 192.168.0.1/11111111.11111111.11111111.00000000 > or 192.168.0.1/255.255.255.0.
Almost correct. The number to the right of the slash (e.g., the "24" in something like "192.168.1.1/24") is the "prefix length" or number of bits in the network number and subnet mask. This means that "192.168.0.1/8" really identifies host address "192.168.0.1" from network "192" and subnet mask "255.0.0.0". Another example is "192.168.1.1/24". This specifies the network "192.168.1", the subnet mask "255.255.255.0" and the host address "192.168.1.1". Seth [EMAIL PROTECTED]
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