North American Network Operators Group

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Re: /8 end user assignment?

  • From: Steven M. Bellovin
  • Date: Fri Aug 05 03:12:17 2005

In message <[email protected].ne
t>, "Stephen J. Wilcox" writes:
>

>2. We know cable companies, dsl providers and mobile companies can use this ma
>ny 
>IPs, but they generally seem to make use of NAT and IPv6. If everyone in this 
>category who could justify a /8 applied and received them we might be in real 
>trouble with our IPv4 space.
>
>I had said elsewhere this was unprecedented but was then pointed at 73.0.0.0/9, 
>73.128.0.0/10 which is Comcast assigned in April. I'm surprised none of these 
>assignemtns have shown up on mailing lists..
>

When it comes to Comcast, I'm just an ordinary residential subscriber, 
but they don't use NAT for subscriber addresses as best I can tell.  
Certainly, I've never been given one, asked about one, etc.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb