> From: Tom Limoncelli [mailto:t...@whatexit.org] > Sent: Monday, April 19, 2010 7:29 AM > To: Edward Ned Harvey > Cc: da...@lang.hm; discuss@lopsa.org > Subject: Re: [lopsa-discuss] IPv6 and NAT > > On Mon, Apr 19, 2010 at 7:03 AM, Edward Ned Harvey > <lop...@nedharvey.com> wrote: > >> From: discuss-boun...@lopsa.org [mailto:discuss-boun...@lopsa.org] > On > >> Behalf Of da...@lang.hm > >> > >> I know that the people pushing IPv6 consider NAT evil and want to > >> make it impossible. > > > > Reference please? I never heard anything like that. I would agree > that > > it's generally not expected to be encouraged. But made impossible? > I call > > BS. > > There are certainly people in the IETF that are anti-NAT. They've > been making their case for quite some time, including > http://www.faqs.org/rfcs/rfc1627.html (which I agree with). > Are they making it difficult for people to use NAT with IPv6? Yes. > When people come up with a reason to do NAT+IPv6, they run to make > sure the need is fixed some other way. For example, > http://www.faqs.org/rfcs/rfc3041.html > Are they making it impossible? Well, it depends on where "difficult" > stops and "impossible" begins.
This is not an attempt to make NAT impossible, or even difficult in IPv6. There's no such thing as even making it difficult. If you want to build a router, or a proxy server, and take internal connections and proxy them with another IP address, go right ahead. Nothing's preventing you. Except for maybe lack of customer demand. > common multiplier. On the other hand... Subnets come in powers of two > and racks hold 40 or 80 machines. The nearest power of two is 64 or > 128. Both give you a 65% efficiency. Subtract out other So ... if I've got 80 machines in a rack and I've got 128 Ip addresses, I can't use the remaining ~40 IP addresses in the next rack? _______________________________________________ Discuss mailing list Discuss@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
