Re: ipv6 address management - documentation

[owen--- via NANOG <nanog () nanog org>]

> On Nov 16, 2023, at 21:57, Ryan Hamel <ryan () rkhtech org> wrote:
>
> Christopher,
>
> A residential customer would be getting their /56 from the providers pool via RA or DHCPv6. With a /32 aggregate, it 
> can handle 1.6 million /56 delegations, which can cover a few regions. It all depends on the planning going into 
> splitting up the aggregate.

Or, if the provider isn’t stingy a /48 from the providers /≤32 (providers can get as many /48s as they need to support 
whatever number of customers receiving them, at least in the ARIN region).

> A rule of thumb I go by in the datacenter is, a /48 per customer per site, and further splitting it into /64s per 
> VLAN, all of which can be plugged into a spreadsheet formula to produce a valid complete subnet.
>
> Either way, keeping track of IPAM via spreadsheet is a recipe for disaster. NetBox and Nautobot are my choices, and 
> is worth deploying on a server or VPS, even for home labs.

On this, we agree.

It’s just not what spreadsheets do.

Owen

> Ryan
>
> From: NANOG <nanog-bounces+ryan=rkhtech.org () nanog org> on behalf of Christopher Hawker <chris () thesysadmin au>
> Sent: Thursday, November 16, 2023 3:52:59 PM
> To: Aaron Gould <aaron1 () gvtc com>; Owen DeLong <owen () delong com>
> Cc: nanog () nanog org <nanog () nanog org>
> Subject: Re: ipv6 address management - documentation
>
> Caution: This is an external email and may be malicious. Please take care when clicking links or opening attachments.
>
> One of the first things that comes to mind, is that if you were to breakout a /64 v6 subnet (a standard-issue subnet 
> to a residential customer) in an Excel spreadsheet, the number of columns you would need is 14 digits long. You could 
> breakout the equivalent of a /12 v4 in just one column. Understandably in the real world no one (in their right mind) 
> would do this, this is just for comparison.
>
> Regards,
> Christopher H.
> From: NANOG <nanog-bounces+chris=thesysadmin.au () nanog org> on behalf of Owen DeLong via NANOG <nanog () nanog org>
> Sent: Friday, November 17, 2023 10:39 AM
> To: Aaron Gould <aaron1 () gvtc com>
> Cc: nanog () nanog org <nanog () nanog org>
> Subject: Re: ipv6 address management - documentation
>  
> Spreadsheets are terrible for IPAM regardless of address length, but I am curious to know why you think IPv6 would be 
> particularly worse than IPv4 in such a scenario?
>
> Owen
>
>
> > On Nov 16, 2023, at 10:02, Aaron Gould <aaron1 () gvtc com> wrote:
> >
> > For years I've used an MS Excel spreadsheet to manage my IPv4 addresses.  IPv6 is going to be maddening to manage 
> > in a spreadsheet.  What does everyone use for their IPv6 address prefix management and documentation?  Are there 
> > open source tools/apps for this?
> >
> > -- 
> > -Aaron