Re: we should enable RFC7217 by default

From: Guido Falsi <madpilot_at_FreeBSD.org>
Date: Wed, 28 Jan 2026 17:37:30 UTC
On 1/27/26 22:15, Pouria Mousavizadeh Tehrani wrote:
> On 1/27/26 4:56 PM, Olivier Cochard-Labbé wrote:
>> In a server environment, administrators typically assign static IPv6 
>> addresses manually and do not use the EUI-64 method.
> To add a note, administrators usually avoid *using* EUI-64 addresses for 
> production, especially for their DNS records.
> However, they often have an EUI-64 address because having default routes 
> and other parameters automatically configured by accept_rtadv is 
> convenient.
> That's why I believe there will be an impact on servers. however, as you 
> said, it's not an issue here.
> 
> At least, we use accept_rtadv in our production AND people typically 
> configure their rtadvd with the autonomous bit. So this results in 
> having EUI-64 addresses on the servers, which may be used in source 
> selection.
> 
> I would like to kindly request @madpilot to create this patch for 
> review, including a note in the UPDATING file, if everyone is in agreement.
> 

I will create a review with this changes soon.

But at present my priority is getting the feature MFCed to stable/15

-- 
Guido Falsi <madpilot@FreeBSD.org>