nanog mailing list archives
Re: IPv6 Default Allocation - What size allocation are you giving out
From: James R Cutler <james.cutler () consultant com>
Date: Wed, 8 Oct 2014 22:48:48 -0400
On Oct 8, 2014, at 9:18 PM, Erik Sundberg <ESundberg () nitelusa com> wrote:
I am planning out our IPv6 deployment right now and I am trying to figure out our default allocation for customer LAN blocks. So what is everyone giving for a default LAN allocation for IPv6 Customers. I guess the idea of handing a customer /56 (256 /64s) or a /48 (65,536 /64s) just makes me cringe at the waste. Especially when you know 90% of customers will never have more than 2 or 3 subnets. As I see it the customer can always ask for more IPv6 Space. /64 /60 /56 /48 Small Customer? Medium Customer? Large Customer? Thanks Erik
Erik, Selection of a default prefix is easy. Here are the steps. 1. Design your address allocation systems using /48. 2. Estimate your ongoing address management costs using /48. 3. For each +4 in prefix length, estimate doubling your long term address management costs. 4. Keeping in mind 4.1 Prefixes longer than somewhere around /48 to /56 may be excluded from the global routing table 4.2 Your customers want working Internet connections 4.3 You want income at a minimum of ongoing expense make a sensible business decision. Easy-peasy. James R. Cutler James.cutler () consultant com PGP keys at http://pgp.mit.edu
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Current thread:
- Re: IPv6 Default Allocation - What size allocation are you giving out, (continued)
- Re: IPv6 Default Allocation - What size allocation are you giving out William Herrin (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Baldur Norddahl (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Roland Dobbins (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Tore Anderson (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Lee (Oct 11)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out William Herrin (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Paul S. (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Owen DeLong (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Mark Andrews (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Sam Silvester (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 08)