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elwoodblues
Elwood Blues
Premium
join:2006-08-30
HarperLand
Reviews:
·Cybersurf Intern..

Too many privately held Class A addresses

What kills me is that everyone runs around saying we are running out of IP addresses.

Really?

Lets see from 1.x to 10.x
4 are reserved
the 3.x IP range is given to GE (do they really need an entire Class A address?)

Level 3 has 3 complete Class A addresses
The DOD has 2 Class A addresses
IBM has entire class A address

Now I'm not saying take all the privately held Class A address space away, but unless I've done the math wrong we have 42,282,506,250 addresses available in just the 1-10.x Ip range.

thats 42 BILLION

brad

join:2007-09-06
Etobicoke, ON

Your math is completely wrong. The maximum number of addresses for IPv4 is just above 4 billion. Attempting to recliam some netblocks would only be a very short term workaround and only benefit North Americans, there are other countries where IP addresses are necessary and in very short supply.



Jerm

join:2000-04-10
Richland, WA
kudos:2

reply to elwoodblues
elwood: 10*255*255*255 would be the usable IP space =
165,813,750



espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN
kudos:2

Technically it's 10*256*256*256 (0 and 255 are both valid) - but that really doesn't change the situation that much from the numbers you posted.



McLovin
Chicka chicka yeah
Premium
join:2005-06-12
Fairbanks, AK
Reviews:
·GCI.net

said by espaeth:

Technically it's 10*256*256*256 (0 and 255 are both valid) - but that really doesn't change the situation that much from the numbers you posted.
Depending on how you want to VLSM it out, if 1-10 was going to be one monster network, or if each 1-10 was going to be 10 seperate class A addresses, which would be my assumption considering the existing usage. the correct math would 256 cubed minus 2 for each class A subnet. Minus two being for network and broadcast IDs. 16,777,214 IPv4 addresses per /8 class a subnet.

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