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dhcp: Add IPv6-only dhcp option support (RFC 8925)
Closed, ResolvedPublicFEATURE REQUEST

Description

Clients supporting this DHCP option (DHCP option 108, RFC 8925) will disable its IPv4 network stack for configured number of seconds and operate in IPv6-only mode.

Clients supporting this option include iOS 15+ and macOS 12.0.1+.

Example command:

set service dhcp-server shared-network-name LAN6 subnet 192.168.64.0/24 ipv6-only-preferred 0

Details

Version
-
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Unspecified (please specify)

Event Timeline

This is a nice addition but it requires also implementation of RFC 8781 for it to work. It has been merged in latest radvd https://github.com/radvd-project/radvd/commit/a6460662c6ac2b13307a8977ef068825b66fbce0 but it still hasnt been released

c-po moved this task from Need Triage to Finished on the VyOS 1.3 Equuleus (1.3.3) board.
c-po moved this task from Open to Finished on the VyOS 1.4 Sagitta board.