[30881] in North American Network Operators' Group

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Re: ARIN Policy on IP-based Web Hosting

daemon@ATHENA.MIT.EDU (Hank Nussbacher)
Fri Sep 1 00:45:42 2000

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Date: Fri, 01 Sep 2000 07:44:42 +0200
To: Shawn McMahon <smcmahon@eiv.com>, nanog@merit.edu
From: Hank Nussbacher <hank@att.net.il>
In-Reply-To: <20000831181513.A3406@eiv.com>
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At 18:15 31/08/00 -0400, Shawn McMahon wrote:
>On Thu, Aug 31, 2000 at 06:09:11PM -0400, Deepak Jain wrote:
> >
> > Why can't they use those apps through NAT? I do it from home quite often.
>
>Are you going to set up the port forwarding for 500,000 customers?  1 million?
>
>You and I can set things up so port 22 goes to one machine, port 23 to 
>another,
>etc., but what are you going to do for 500,000 customers?

Based on Cisco:
http://www.cisco.com/warp/customer/701/60.html

"As a result, Cisco IOS PAT [Port Address Translation - HN] supports about 
4000 local addresses that can be mapped to the same global address."

-Hank

>And what are you going to do for only 1,000 customers, with some of them 
>wanting
>telnet, some VNC, some ssh, some Napster, some webcams, etc. etc. etc.?
>
>Set up a dozen ports for each of 500,000 customers?
>
>Or do you have some magic NAT that automatically figures out every protocol,
>known or unknown, currently existing or yet to be written, and routes it to
>the correct machine?
>



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