On Fri, 14 Dec 2018, Brandon Martin wrote:
Are there any (draft, standard, or otherwise) defined mechanisms for indicating to customer-provided devices that they should configure IPv6 to IPv4 transition mechanisms such as MAP, 4rd, 464XLAT, etc. and providing the configuration details thereof?
I'm not aware of any. It seems like this is something that, if defined, would make deployment of such mechanisms a lot easier even if SPs provide the customer edge router that implements said mechanisms. I guess they'd probably be implemented as extensions to DHCPv6 or similar or embedded in RAs (the latter seems ugly).
We use this to configure LW4o6 tunnels using DHCPv6. This is already present in OpenWrt via the MAP package. It supports both MAP-E and LW4o6. https://tools.ietf.org/html/rfc7598 DHCPv6 Options for Configuration of Softwire Address and Port-Mapped Clients This document specifies DHCPv6 options, termed Softwire46 options, for the provisioning of Softwire46 Customer Edge (CE) devices. Softwire46 is a collective term used to refer to architectures based on the notion of IPv4 Address plus Port (A+P) for providing IPv4 connectivity across an IPv6 network. -- Mikael Abrahamsson email: swmike@swm.pp.se