nanog mailing list archives
Re: Class D addresses? was: Redploying most of 127/8 as unicast public
From: Jim <mysidia () gmail com>
Date: Sat, 20 Nov 2021 13:33:30 -0600
On Sat, Nov 20, 2021 at 1:02 PM Michael Thomas <mike () mtcc com> wrote:
On 11/20/21 10:44 AM, Chris Adams wrote:
that it needs 400M addresses. If you wanted to reclaim ipv4 addresses it seems that class D and class E would be a much better target than loopback. Mike, not that I have any stake in this
400M addresses may be excessive, but not so much the Low-hanging fruit you seemed to suggest. May be worth the consideration to reduce, but need to see your draft standard first, about what exactly you propose to reclaim from class D.. Unlike class E and 127/8, there are many protocols and applications that communicate between separate devices on a network over class D in a non-unicast manner to contend with that utilize either official MC assignments, or Private/org-specific assignments from available class D space - Multicast/broadcast addresses used by many control systems such as routing protocols (VRRP), camera systems / physical security, etc. -- -JH
Current thread:
- Re: Redploying most of 127/8 as unicast public, (continued)
- Re: Redploying most of 127/8 as unicast public Owen DeLong via NANOG (Nov 20)
- Re: Redploying most of 127/8 as unicast public Matthew Walster (Nov 20)
- Re: Redploying most of 127/8 as unicast public Owen DeLong via NANOG (Nov 20)
- Re: Redploying most of 127/8 as unicast public Francis Booth via NANOG (Nov 23)
- Re: fun with TLDs and captive portals was, Redploying most of 127/8 as unicast public John Levine (Nov 23)
- Re: Redploying most of 127/8 as unicast public Masataka Ohta (Nov 20)
- Re: Redploying most of 127/8 as unicast public Måns Nilsson (Nov 20)
- Re: Redploying most of 127/8 as unicast public Masataka Ohta (Nov 20)
- Re: Redploying most of 127/8 as unicast public Chris Adams (Nov 20)
- Class D addresses? was: Redploying most of 127/8 as unicast public Michael Thomas (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Jim (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public William Herrin (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Michael Thomas (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public William Herrin (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Michael Thomas (Nov 20)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public james.cutler () consultant com (Nov 20)
- RE: Class D addresses? was: Redploying most of 127/8 as unicast public Richard Irving (Nov 21)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Eliot Lear (Nov 21)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public William Herrin (Nov 21)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Greg Skinner via NANOG (Nov 22)
- Re: Class D addresses? was: Redploying most of 127/8 as unicast public Eliot Lear (Nov 23)