nanog mailing list archives
Re: Assigning /64 but using /127 (was Re: Waste will kill ipv6 too)
From: Octavio Alvarez <octalnanog () alvarezp org>
Date: Thu, 28 Dec 2017 12:29:00 -0600
On 12/28/2017 11:39 AM, Owen DeLong wrote:
On Dec 28, 2017, at 09:23 , Octavio Alvarez <octalnanog () alvarezp org> wrote: On 12/20/2017 12:23 PM, Mike wrote:On 12/17/2017 08:31 PM, Eric Kuhnke wrote: Call this the 'shavings', in IPv4 for example, when you assign a P2P link with a /30, you are using 2 and wasting 2 addresses. But in IPv6, due to ping-pong and just so many technical manuals and other advices, you are told to "just use a /64' for your point to points.Isn't it a /127 nowadays, per RFC 6547 and RFC 6164? I guess the exception would be if a router does not support it.Best practice used most places is to assign a /64 and put a /127 on the interfaces.
Thanks for the info. Is this documented somewhere? Is there a disadvantage in letting many P2P links use different /127 networks within the same /64? Best regards, Octavio.
Current thread:
- RE: Waste will kill ipv6 too, (continued)
- RE: Waste will kill ipv6 too Tony Wicks (Dec 28)
- Re: Waste will kill ipv6 too Lyndon Nerenberg (Dec 28)
- RE: Waste will kill ipv6 too Chuck Church (Dec 28)
- Re: Waste will kill ipv6 too Michael Crapse (Dec 28)
- Re: Waste will kill ipv6 too valdis . kletnieks (Dec 28)
- Re: Waste will kill ipv6 too valdis . kletnieks (Dec 28)
- Re: Waste will kill ipv6 too Lyndon Nerenberg (Dec 28)
- Re: Waste will kill ipv6 too Owen DeLong (Dec 29)
- Re: Waste will kill ipv6 too John Lightfoot (Dec 29)
- Re: Waste will kill ipv6 too Mel Beckman (Dec 29)
- Re: Assigning /64 but using /127 (was Re: Waste will kill ipv6 too) Octavio Alvarez (Dec 28)
- Re: Assigning /64 but using /127 (was Re: Waste will kill ipv6 too) JORDI PALET MARTINEZ (Dec 28)
- Re: Assigning /64 but using /127 (was Re: Waste will kill ipv6 too) Owen DeLong (Dec 28)
- Re: Waste will kill ipv6 too JORDI PALET MARTINEZ (Dec 28)
- Re: Waste will kill ipv6 too bzs (Dec 28)
- Re: Waste will kill ipv6 too Mel Beckman (Dec 28)
- Re: Waste will kill ipv6 too bzs (Dec 28)
- Re: Waste will kill ipv6 too Mel Beckman (Dec 28)
- Re: Waste will kill ipv6 too bzs (Dec 28)
- Re: Waste will kill ipv6 too Mel Beckman (Dec 28)
- Re: Waste will kill ipv6 too Owen DeLong (Dec 28)