[lacnog] Fwd: [IPv6]Android now supports DHCPv6 PD

[Alejandro Acosta]

Interesante..., ¿alguien que se anime a probarlo y nos comente?.


Saludos,




-------- Forwarded Message --------
Subject: 	[IPv6]Android now supports DHCPv6 PD
Date: 	Tue, 16 Sep 2025 08:30:35 +0900
From: 	Lorenzo Colitti <lorenzo=40google.com en dmarc.ietf.org>
To: 	6man <6man en ietf.org>, v6ops en ietf.org WG <v6ops en ietf.org>, dhcwg 
<dhcwg en ietf.org>



FYI, we announced DHCPv6 PD support on Android today:

https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html

This change should already be live on most Android devices running 
Android 11 and above. Specifically:

  * RFC 9762: if the P flag is set, the device will ask for a
    SLAAC-sized prefix, and if it gets it, use it to form addresses.
    Some devices will also disable SLAAC as per the SHOULD in the RFC.
    Not all devices will support this because it requires a kernel
    change which will be rolling out over the coming months. In future
    releases, we expect that the prefix will be shared with downstream
    devices, wearable devices, VMs, etc.
  * Heuristic: if the device obtains a default route but not PIO, it
    will ask for a prefix, and if it gets it, use it to form addresses.
    This allows DHCPv6-only networks to support Android devices today
    without having to upgrade their routers to set the P flag.

Over the next few months we also plan to roll out support for DHCPv6 
address registration (RFC 9686).

I would like to thank everyone who contributed to RFC 9663, RFC 9762 
and RFC 9686. We think that DHCPv6 PD is *better* than either SLAAC or 
IA_NA, because it allows the device to provide end-to-end connectivity 
to unlimited devices, containers, VMs etc. without scaling load on the 
network. Plus the prefix can be tracked and managed by the operator, 
which means that it should be possible to deploy it in networks that 
require DHCPv6 or that have scaling issues dealing with many addresses. 
We hope that this will allow at least some enterprise operators to 
deploy IPv6 to Android devices.

Cheers,
Lorenzo
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