nanog mailing list archives
Re: IPv4 smaller than /24 leasing?
From: Justin Wilson <lists () mtin net>
Date: Tue, 13 Mar 2018 14:14:23 -0400
Even to buy it on the secondary market you have to have justification and show usage. So if someone buys a /24 and really only needs a /25 then what? It ARIN, or others for that matter, going to relax those requirements? If I am an ISP and need to do BGP, maybe because I have a big downstream customer, I have to have a /24 to participate in BGP. I see these scenarios more and more. Justin Wilson j2sw () mtin net www.mtin.net www.midwest-ix.com
On Mar 13, 2018, at 2:08 PM, Bob Evans <bob () FiberInternetCenter com> wrote: Marketplaces - supply and demand and costs to operate as Bill noted (never thought of that) will settle out the need. Thank You Bob Evans CTOI am looking at it from an ARIN justification point. If you are a small operator and need a /24 you have justification if you give customerâs publics, but is it a great line if you are only giving out publics for people who need cameras or need to connect in from the outside world. If I need a /24 and I donât really use it all am I being shady? It becomes a âhow much of a grey area is thereâ kind of thing. Justin Wilson j2sw () mtin net www.mtin.net www.midwest-ix.comOn Mar 13, 2018, at 1:37 PM, William Herrin <bill () herrin us> wrote: On Tue, Mar 13, 2018 at 1:19 PM, Justin Wilson <lists () mtin net> wrote:I agree that the global routing table is pretty bloated as is. But what kind of a solution for providers who need to participate in BGP but only need a /25?Hi Justin, If you need a /25 and BGP for multihoming or anycasting, get a /24. The cost you impose on the system by using BGP *at all* is much higher than the cost you impose on the system by consuming less than 250 "unneeded" Ip addresses. I did a cost analysis on a BGP announcement a decade or so ago. The exact numbers have changed but the bottom line hasn't: it's ridiculously consumptive. Regards, Bill Herrin -- William Herrin ................ herrin () dirtside com bill () herrin us Dirtside Systems ......... Web: <http://www.dirtside.com/>
Current thread:
- Re: IPv4 smaller than /24 leasing? Bob Evans (Mar 13)
- RE: IPv4 smaller than /24 leasing? Naslund, Steve (Mar 13)
- RE: IPv4 smaller than /24 leasing? Bob Evans (Mar 13)
- Re: IPv4 smaller than /24 leasing? Justin Wilson (Mar 13)
- Re: IPv4 smaller than /24 leasing? William Herrin (Mar 13)
- Re: IPv4 smaller than /24 leasing? Justin Wilson (Mar 13)
- Re: IPv4 smaller than /24 leasing? Bob Evans (Mar 13)
- Re: IPv4 smaller than /24 leasing? Justin Wilson (Mar 13)
- Re: IPv4 smaller than /24 leasing? Martin List-Petersen (Mar 13)
- Re: IPv4 smaller than /24 leasing? Mike Hammett (Mar 18)
- Re: IPv4 smaller than /24 leasing? William Herrin (Mar 13)
- RE: IPv4 smaller than /24 leasing? Naslund, Steve (Mar 13)
- Re: IPv4 smaller than /24 leasing? Mike Hammett (Mar 18)
- Re: IPv4 smaller than /24 leasing? William Herrin (Mar 18)
- RE: IPv4 smaller than /24 leasing? Naslund, Steve (Mar 13)
- Re: IPv4 smaller than /24 leasing? Lee Howard (Mar 13)