nanog mailing list archives
Re: IPv6 Default Allocation - What size allocation are you giving out
From: Owen DeLong <owen () delong com>
Date: Thu, 9 Oct 2014 00:26:55 -0700
I’ll go a step further… If you give a residential customer the /48 that they should be getting, then as DHCP-PD and automatic topologies become more widespread, you have enabled flexibility in the breadth and depth of the bit patterns used to facilitate such hierarchies in the home network environment. If you limit them to 8 bits of subnetting, you are very limited in the constructs (1x8, 2x4, 4x2, or 8x1) which can be achieved. Further, there’s really no advantage to keeping so much extra IPv6 address space on the shelves long past the expiration of the protocol’s useful life. I guarantee you that unless we start doing really stupid things (like using IPv6 /48s as serial numbers for cars), giving /48s to residential customers will not exhaust the current /3 (1/8th of the total IPv6 space) before we hit some other limitation of the protocol. Owen On Oct 8, 2014, at 9:07 PM, Faisal Imtiaz <faisal () snappytelecom net> wrote:
Like I said, this was my understanding.... I am glad that it is being pointed out to be in-correct.... I don't have a reason for why a /64 as much as I also don't have any reason Why NOT.... So, let me ask the question in a different manner... What is the wisdom / reasoning behind needing to give a /56 to a Residential customer (vs a /64). Regards. Faisal Imtiaz Snappy Internet & Telecom ----- Original Message -----From: "Sam Silvester" <sam.silvester () gmail com> To: "Faisal Imtiaz" <faisal () snappytelecom net> Cc: "Erik Sundberg" <ESundberg () nitelusa com>, "NANOG" <nanog () nanog org> Sent: Wednesday, October 8, 2014 11:47:01 PM Subject: Re: IPv6 Default Allocation - What size allocation are you giving outWhy would you only allocate a residential customer a single /64?That's totally short sighted in my view.On Thu, Oct 9, 2014 at 2:07 PM, Faisal Imtiaz < faisal () snappytelecom net > wrote:We are going thru a similar process.. from all of my reading, best practice discussions etc..Here is what i have understood so far:-Residential Customers: /64Small & Medium size Business Customers: /56Large Business size or a multi-location Business Customer: /48Don't skimp on allocating the subnets like we do on IPv4Better to be 'wasteful' than have to come back to re-number or re-allocate .RegardsFaisal ImtiazSnappy Internet & Telecom----- Original Message -----From: "Erik Sundberg" < ESundberg () nitelusa com >To: nanog () nanog orgSent: Wednesday, October 8, 2014 9:18:16 PMSubject: IPv6 Default Allocation - What size allocation are you giving outI am planning out our IPv6 deployment right now and I am trying to figure outour default allocation for customer LAN blocks. So what is everyone givingfor a default LAN allocation for IPv6 Customers. I guess the idea ofhanding a customer /56 (256 /64s) or a /48 (65,536 /64s) just makes mecringe at the waste. Especially when you know 90% of customers will neverhave more than 2 or 3 subnets. As I see it the customer can always ask formore IPv6 Space./64/60/56/48Small Customer?Medium Customer?Large Customer?ThanksErik________________________________CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files orprevious e-mail messages attached to it may contain confidential informationthat is legally privileged. If you are not the intended recipient, or aperson responsible for delivering it to the intended recipient, you arehereby notified that any disclosure, copying, distribution or use of any ofthe information contained in or attached to this transmission is STRICTLYPROHIBITED. If you have received this transmission in error please notifythe sender immediately by replying to this e-mail. You must destroy theoriginal transmission and its attachments without reading or saving in anymanner. Thank you.
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 Mark Andrews (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Gary Buhrmaster (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Hugo Slabbert (Oct 08)
- 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 Daniel Ankers (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Karl Auer (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Saku Ytti (Oct 08)
- 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 Saku Ytti (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Mikael Abrahamsson (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 James R Cutler (Oct 09)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Philip Dorr (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Faisal Imtiaz (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out jamie rishaw (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Gary Buhrmaster (Oct 08)
- Re: IPv6 Default Allocation - What size allocation are you giving out Gary Buhrmaster (Oct 08)