nanog mailing list archives

Re: Looking for an IPv6 naysayer...


From: TR Shaw <tshaw () oitc com>
Date: Wed, 9 Feb 2011 18:48:39 -0500


On Feb 9, 2011, at 6:21 PM, Owen DeLong wrote:


On Feb 9, 2011, at 12:50 PM, George Bonser wrote:


I never thought it was that bad. In some 3G/wireless networks in
Germany
the providers use NAT and transparent HTTP-proxy. But this is only
wireless. I'm not aware of any DSL or Cable provider NATing their
customers.

Jens

Practically all broadband providers NAT their customers in the US.  If
you look at the largest ones which are probably Comcast, Verizon, and
AT&T, you have the majority of US broadband subscribers right there.


No.

Almost none of the broadband providers in the US NAT their customers.

Most of them provide a single public IP address to their residential
customers.

Most broadband customers use their own NAT to extend that single
public IP address from the provider to multiple addresses within
the site.

This is a very very different thing from LSN with a lot less breakage.


Owen

This maybe true of all the big boys but I can tell you that rural telcos providing internet connectivity (personal 
experience in Northern MN) do and heavily.  They may run fiber to the house but they do LSN big time.

Tom



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