Re: First bit of IP Addresses

On Thu, 01 Feb 2001 10:43:32 +0100, James Aldridge said:
> In the classful world:
>       bit 1 = 0               -> Class A
>       bits 1,2 = 10           -> Class B
>       bits 1,2,3 = 110        -> Class C
>       bits 1,2,3,4 = 1110     -> Class D (Multicast)
>       etc.
Note that since the creation of CIDR, class A/B/C has been essentially
deprecated in favor of address/mask pairs.  In fact, so much so that in
today's net, stuff that still insists on class A/B/C distictions is
considered "broken".


-- 
                                Valdis Kletnieks
                                Operating Systems Analyst
                                Virginia Tech

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