[arin-ppml] Why are ISPs allowed?

Cort Buffington cort at kanren.net
Fri Jan 2 16:37:55 EST 2009

NAT enforces the client-server model. I can think of a LOT of reasons  
why I would not use an ISP that enforced NAT upon me. The main one  
being that I could only use my Internet connection for sessions I  
initiate.... In other words, I'm buying about 1/2 of a connection to  
the Internet... Actually, I'd not be buying a connection "to" the  
Internet at all, only a connection "from" the Internet.

Once two people who wish to communicate are both behind such  
providers, there is no way they can send data to each other without  
using a third party somewhere... which is to me a real waste of  

On Jan 2, 2009, at 3:24 PM, Artur (eBoundHost) wrote:

> My apologies if I'm asking a question that has been answered a million
> times, I have not been able to find an answer.
> Is there a reason why ISP's such as Comcast/ATT, allowed to hand out
> unique IP addresses, even not static ones, to end users? Why are they
> not required to use NAT?
> If ISPs were to switch to local address space, how many IP blocks  
> would
> be released back into the wild?
> -- 
> Best Regards,
> Artur
> eBoundHost
> http://www.eboundhost.com
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Cort Buffington
Executive Director
The Kansas Research and Education Network
cort at kanren.net
Office: +1-785-856-9800 x301
Mobile: +1-785-865-7206

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