# Android Phones Might Ask for /64 Delegated Prefix

DevFeed: [Android Phones Might Ask for /64 Delegated Prefix](<https://devfeed.tech/articles/android-phones-might-ask-for-64-delegated-prefix-11234.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2025/09/android-dhcpv6-prefix-delegation/>)

Published: 2025-09-29T05:43:00Z

Content type: opinion

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [Networks](<https://devfeed.tech/topics/networks.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [developers](<https://devfeed.tech/tags/developers.md>), [dhcp](<https://devfeed.tech/tags/dhcp.md>), [ipv6](<https://devfeed.tech/tags/ipv6.md>), [network](<https://devfeed.tech/tags/network.md>), [phones](<https://devfeed.tech/tags/phones.md>)

## AI overview

The article critiques Android 11's support for DHCPv6 prefix delegation, which is limited to assigning delegated prefixes. It questions the rationale for giving phones dedicated /64 prefixes on Wi-Fi networks and challenges arguments concerning IPv4, battery use, IPv6 address assignment, and ND cache exhaustion.

## Source excerpt

I'm too old to be fighting with windmills, but sometimes I have to get a rant off my chest. This one was triggered by the latest episode of the hilarious1 "DHCPv6 on Android" soap opera In a 720-degree turnaround, Android 11 supports DHCPv6, but only for prefix delegation purposes. Yes, you got it right, in a year or two, every phone might want to have a dedicated /64 prefix assigned to it on WiFi segments2. Want more details? Well, there's a high-level overview published on the Android Developers blog and a corresponding message sent to the v6ops mailing list. Let's see how much sense that makes. Read more ...