RE: IPv4 flag day

[Gary Sparkes via NANOG <nanog () lists nanog org>]

Cost and overhead they already have for IPv4. 

And if they already have IPv4 from their RIR, the IPv6 is free. 

And if they don't, then the IPv6 scenario works just like IPv4. Two providers, two address sets. 

-----Original Message-----
From: sronan--- via NANOG <nanog () lists nanog org> 
Sent: Friday, June 19, 2026 3:55 PM
To: nanog () lists nanog org
Cc: Marco Moock <mm () dorfdsl de>; nanog () lists nanog org; sronan () ronan-online com
Subject: Re: IPv4 flag day

Now you are introducing new cost and overhead on the SMBs.

> On Jun 19, 2026, at 3:47 PM, Marco Moock via NANOG <nanog () lists nanog org> wrote:
>
> Am 19.06.26 um 21:21 schrieb Aaron C. de Bruyn:
> > I don't want to renumber everything because I ditch one ISP and 
> > switch to another.
>
> Get your own prefix from RIR and let your ISP route it to your. If you switch the ISP, let the new ISP route it to 
> you. It is even possible to have 2 ISPs that route the same prefix to you - without having you own ASN.
>
> --
> Gruß
> Marco
>
> Junk-Mail bitte an trashcan () stinkedores dorfdsl de 
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