Greg Stark wrote:
a.b.c
When a three-part address is specified, the last part shall be interpreted
as a 16-bit quantity and placed in the rightmost two bytes of the network
address. This makes the three-part address format convenient for specifying
Class B network addresses as "128.net.host" .
I can understand the a.b case, but the a.b.c case is just weird. What
logic is there that it is a.0.b.c? Nothing I can think of except
convention. I agree with Vixie that this syntax is strange and
shouldn't be encouraged.
The mentioning of Class B network addresses proves that this is a convention from ancient times, when a couple of network admins where using up all A and B networks and didn't want to write all those ".0" indicating their waste of address space...
Its usability nowadays is very limited, and should be avoided for clarity reasons.
Regards, Andreas
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