nanog mailing list archives
Re: Point 2 point IPs between ASes
From: joel jaeggli <joelja () bogus com>
Date: Wed, 28 Jun 2017 18:43:32 -0700
On 6/28/17 18:10, Olivier Benghozi wrote:
Well, /112 is not a stupid option (and is far smarter than /64): it contains the whole last nibble of an IPv6, that is x:x:x:x:x:x:x:1234. You always put 1 or 2 at the end, and if needed you are still able to address additional stuff would the point-to-point link become a LAN. And you don't throw away billions of addresses like with /64.
If you were subnetting down from /64 for the purposes of preventing ndp exhaustion or to protect the control plane on either yours or your customers platforms then a /112 is pretty useless because 16 bits is harmful enough. https://tools.ietf.org/html/rfc6583 https://tools.ietf.org/html/rfc6164
On 29 jun 2017 at 02:32, William Herrin <bill () herrin us> wrote : On Wed, Jun 28, 2017 at 8:01 PM, Aaron Gould <aaron1 () gvtc com> wrote:I think this is funny... I have (4) 10 gig internet connections and here's the maskings for my v6 dual stacking... /126 - telia /64 - att /112 - cogent /127 - twc/charter/spectrum112... Could be worse I suppose. They could have picked 113.
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Current thread:
- Point 2 point IPs between ASes Krunal Shah (Jun 27)
- Re: Point 2 point IPs between ASes Niels Bakker (Jun 27)
- Re: Point 2 point IPs between ASes Job Snijders (Jun 27)
- Re: Point 2 point IPs between ASes Tom Beecher (Jun 28)
- RE: Point 2 point IPs between ASes Aaron Gould (Jun 28)
- Re: Point 2 point IPs between ASes William Herrin (Jun 28)
- Re: Point 2 point IPs between ASes Chris Adams (Jun 28)
- Re: Point 2 point IPs between ASes Olivier Benghozi (Jun 28)
- Re: Point 2 point IPs between ASes joel jaeggli (Jun 28)
- Re: Point 2 point IPs between ASes William Herrin (Jun 28)
- RE: Point 2 point IPs between ASes Aaron Gould (Jun 28)
- Re: Point 2 point IPs between ASes William Herrin (Jun 29)
- Re: Point 2 point IPs between ASes Justin M. Streiner (Jun 29)
- Re: Point 2 point IPs between ASes Tom Beecher (Jun 28)
- Re: Point 2 point IPs between ASes Thomas Bellman (Jun 29)
- Re: Point 2 point IPs between ASes William Herrin (Jun 28)
- Re: Point 2 point IPs between ASes joel jaeggli (Jun 28)
- Re: Point 2 point IPs between ASes Job Snijders (Jun 29)