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Maniphest T6059

dhcp: add support for RFC8925 IPv6-Only Preferred Option for DHCPv4
Closed, DuplicatePublicFEATURE REQUEST
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Description

From the RFC:

One of the biggest challenges of deploying IPv6-only LANs is that such networks might contain a rather heterogeneous collection of hosts. While some hosts are capable of operating in IPv6-only mode (either because the OS and all applications are IPv6-only capable or because the host has some form of 464XLAT [RFC6877] deployed), others might still have IPv4 dependencies and need IPv4 addresses to operate properly. To incrementally roll out IPv6-only, network operators might need to provide IPv4 on demand, whereby a host receives an IPv4 address if it needs it, while IPv6-only-capable hosts (such as modern mobile devices) are not allocated IPv4 addresses.

ISC-DHCP provides

option v6-only-preferred uint32;

The number of seconds the client should disable DHCPv4 for.
This option and its use by the client are specified in RFC 8925.

Details

Difficulty level
Easy (less than an hour)
Version
-
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Perfectly compatible
Issue type
Improvement (missing useful functionality)

Event Timeline

c-po claimed this task.Feb 23 2024, 9:04 PM
c-po created this task.
c-po changed Difficulty level from Unknown (require assessment) to Easy (less than an hour).
c-po changed Is it a breaking change? from Unspecified (possibly destroys the router) to Perfectly compatible.
c-po changed Issue type from Unspecified (please specify) to Improvement (missing useful functionality).
c-po closed this task as a duplicate of T4832: dhcp: Add IPv6-only dhcp option support (RFC 8925).Feb 23 2024, 9:10 PM
pasik added a subscriber: pasik.Feb 23 2024, 10:36 PM