The current proposal is to reduce loopback subnet size from /8 to /16 - https://github.com/schoen/unicast-extensions/blob/master/127.md https://github.com/schoe

The current proposal is to reduce loopback subnet size from /8 to /16 - https://github.com/schoen/unicast-extensions/blob/master/127.md https://github.com/schoen/unicast-extensions/blob/master/127... I think that it's the most problematic proposal from all these – unlike 240/4 etc every ip stack on earth has hardcoded knowledge about 127/8 for sure and it will took at least decades to deprecate all these. And I also have seen addresses other than 127.0.0.x used in wild. As far as I understood, some orchestration systems use generated 127.x.x.x addresses to avoid conflicts between applications. Linux makes it very easy – you just bind an application to 127.45.2.189 for example and it just works. There is no need to add it to the interface or something.