2007/631 Class E IP Address Configuration
Sangeeta Misra
Sangeeta.Misra at sun.com
Tue Nov 13 08:56:46 PST 2007
James Carlson wrote:
>Sangeeta Misra writes:
>
>
>>James Carlson wrote:
>>
>>
>>>You can't plumb it, and still won't be able to once this project
>>>integrates. It's outside the scope. (Perhaps, for completeness, the
>>>IN_CLASSE macro ought to exclude it explicitly. That sounds like a
>>>code review issue, though.)
>>>
>>>
>>CLASSE macro does exclude 255.255.255.255.in my code changes.
>>
>>
>
>It's not part of the definition of Class E space, though, is it?
>
>
http://www.ietf.org/internet-drafts/draft-fuller-240space-00.txt
says the Class E range is :
range 240.0.0.0 through 255.255.255.255
But it goes on to say:
Note that the broadcast address, 255.255.255.255, still must be
treated specially in each case: it is illegal as a source IP address,
it is illegal as an network interface address, and it matches the
local system when used as the destination address in a received
datagram.
So there is a slight contradiction in the draft, but the note about broadcast address makes it clear
that 255.255.255.255 should not be considered to be a valid address to assign to a machine. So I simply exclude it
from my IN_CLASSE macro.
Sangeeta
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