nanog mailing list archives
Re: Dual stack IPv6 for IPv4 depletion
From: "Ricky Beam" <jfbeam () gmail com>
Date: Wed, 15 Jul 2015 20:13:42 -0400
On Wed, 15 Jul 2015 19:35:07 -0400, Joe Maimon <jmaimon () ttec com> wrote:
So your point is that those who claimed it would not help managed to make it so?Would it have really hurt to remove experimental status and replace it with use at your own risk status? Even now?
No. The point is it's been wired into everything that has ever existed that it's an invalid address. Even if the "experimental" had been moved 15 years ago, there would still be devices today that CANNOT use one of those addresses, and further, is 100% incapable of talking to anything using one.
Interestingly, Cisco, who proposed using the space, still has those restrictions embedded in everything they make. (Of course, their non-nexus switches still have token-ring and fddi translation vlans hardcoded.)
Factor in the people who cannot do math and think multicast is "anything greater than 224.0.0.0", and you have a section of address space that is permanently unusable. (like 1.1.1.0/24 and 1.2.3.0/24) I'm not going to name names, but I've see proprietary code -- from more than one source -- that did that, because "bge [branch greater or equal] is a single instruction." If you think that's a "lame optimization", then you should be hunting down *everything* responsible for SLAAC.
Current thread:
- Re: Dual stack IPv6 for IPv4 depletion, (continued)
- Re: Dual stack IPv6 for IPv4 depletion George Metz (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Owen DeLong (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Doug Barton (Jul 15)
- RE: Dual stack IPv6 for IPv4 depletion Tony Hain (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Mark Andrews (Jul 14)
- Re: Dual stack IPv6 for IPv4 depletion Joe Maimon (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion joel jaeggli (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Joe Maimon (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Mark Andrews (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion joel jaeggli (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Ricky Beam (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Doug Barton (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Joe Maimon (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Jared Mauch (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Joe Maimon (Jul 15)
- RE: Dual stack IPv6 for IPv4 depletion Tony Hain (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Jared Mauch (Jul 16)
- Re: Dual stack IPv6 for IPv4 depletion Owen DeLong (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Doug Barton (Jul 15)
- Re: Dual stack IPv6 for IPv4 depletion Joe Maimon (Jul 16)
- RE: Dual stack IPv6 for IPv4 depletion Jacques Latour (Jul 16)