[mif] RFC 6731 implementations

[Petr Menšík <[e-mail]>]

Hello former MIF group members,

I have found RFC 6731 [1], which is Standard Tracks since December 2012. 
I have found reference to it from some draft of add WG. When I read it, 
I found it proposes solution to existing problem on Linux desktops, 
which is not yet sufficiently solved. A bit similar attempt is 
implemented by systemd-resolved [2], but does not use any standardized way.

I think every device with multiple interfaces is potential candidate for 
it. Every laptop with ethernet+wifi, every smart phone with 
wifi+cellular network. Yet I haven't found any attempts to implement RFC 
6731. Do you know existing implementations for any operating system? Is 
it used somewhere already? Is there a reason why it is not widely used?

I work in Red Hat as a Software Engineer, maintaining some DNS packages. 
Dnsmasq has some integration with Network Manager, which does something 
similar. Yet they are misusing dns-search parameter of DHCP protocol. I 
would like to add more proper support, but I find current standards 
confusing. Is there more relevant successor to this standard?

Best Regards,
Petr

1. https://www.rfc-editor.org/rfc/rfc6731.html
2. https://systemd.io/RESOLVED-VPNS/

-- 
Petr Menšík
Software Engineer, RHEL
Red Hat, http://www.redhat.com/
PGP: DFCF908DB7C87E8E529925BC4931CA5B6C9FC5CB