nanog mailing list archives
Re: Point 2 point IPs between ASes
From: William Herrin <bill () herrin us>
Date: Wed, 28 Jun 2017 23:26:20 -0400
On Wed, Jun 28, 2017 at 9:10 PM, Olivier Benghozi < olivier.benghozi () wifirst fr> 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.
Hi Oliver, You can always put 1 and 2 at the end on a /124 as well and add additional devices. These are the same advantages of /124 over /126. And /124 doesn't suffer from ND exhaustion attacks like /112 might. The only thing /112 buys you (that I can see) is a single colon in front of the final digit. I don't see how /112 would be a good choice. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Dirtside Systems ......... Web: <http://www.dirtside.com/>
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)
- Re: Point 2 point IPs between ASes Mark Andrews (Jun 29)