please define terms

[Paul Ferguson]

This is another glaring indication that people are tossing opinions
into the discussion while being completely oblivious to the technology.

So, I'll take another opportunity to mention the CIDR FAQ:

  http://www.rain.net/faqs/cidr.faq.html

I also posted a 'recommended reading list' a few days ago; if someone
would like for me to repost it, please speak up. It would be ideal if
we could get a web page put together with these pointers to keep the
signal/noise ratio on the list somewhat tolerable (pretty far gone for
that, I'm afraid).

- paul

At 09:34 PM 1/20/97 -0500, Philip J. Nesser II wrote:

>Larry Honig supposedly said:
>>
>> I'm sorry to brutally expse my ignorance of terms, but I may not be the
>> only neophyte here so I will do it anyway. What exactly is meant by /24,
>> /19, /xx??  It seems that the "buying power" represented must be greater
>> as the denominator decreases. Would a /1 allocate all 4 billion IPs?
>> How does this map into - lets say - a scheme where I as an ISP would
>> like to allocate (in IPv4 syntax) all the numbers between (for example -
>> not a real sequence) 99.128.51.0 and 99.128.51.255? Also, under IPv6 how
>> would this look? Please give a specific example if possible. Thanks in
>> advance.
>>
>
>its easiest to work it backwards:
>
>/32     1 address
>/31     2 addresses
>/30     4 addresses
>/29     8 addresses
>/28    16 addresses
>...
>/24   256 addresses (traditional class C)
>...
>/16 65536 addresses (traditional class B)  (or a block of 256 traditional
>                                            Class C's)
>
>so 192/8 means the 65536 traditional class C addresses starting at
>192.0.1.0 to 192.255.255.0
>
>
>your examples would be written as 99.128.51/24
>
>
>There are countless materials on this but I suggest looking at an RFC
>archive and searching for CIDR.  (Try RFC 1518)
>