nanog mailing list archives
Re: ip reclamation was Re: Kremen's Buddy?
From: "william(at)elan.net" <william () elan net>
Date: Tue, 12 Sep 2006 17:32:09 -0700 (PDT)
On Tue, 12 Sep 2006, william(at)elan.net wrote:
How much, though, is used, but not routed publically?----------------------- TOTAL FOR IPV4 BLOCKS: Allocated: 9302367 (/24 blocks) - 63% Not Allocated: 5377697 (/24 blocks) - 37% Currently Routed: 6183529 (/24 blocks) - 42% Not Routed: 8496535 (/24 blocks) - 58% ----------------------- Simple math from above: Allocated & Not Routed: 3118838 (/24 blocks) - 21%
Not easily observable means some ip blocks maybe used but are not adverised in public BGP. This is a bit of an issue with certainpart of US Gov.
The larged of these blocks are 6/8, 11/8, 21/8, 22/8, 25/8, 26/8, 28/8, 29/8, 30/8. 51/8, 52/8, 56/8 and I strongly suspect 48/8. This comes to
total 851968 /24s; this still leaves 2266870 /24 blocks that includes some smaller used but not advertised and some no-longer-used space. I suspect the total would be around 1/2 of value above, i.e. around 10% of ip space is something that could potentially be reclaimed (that is unless you want to bug us military who have way too much space). -- William Leibzon Elan Networks william () elan net
Current thread:
- ip reclamation was Re: Kremen's Buddy? Scott Weeks (Sep 12)
- Re: ip reclamation was Re: Kremen's Buddy? william(at)elan.net (Sep 12)
- Re: ip reclamation was Re: Kremen's Buddy? william(at)elan.net (Sep 12)
- <Possible follow-ups>
- Re: ip reclamation was Re: Kremen's Buddy? Scott Weeks (Sep 13)
- Re: ip reclamation was Re: Kremen's Buddy? william(at)elan.net (Sep 12)