The future called and it wants more IPv4 space. As much as I am a staunch proponent of IPv6, I get the need for more IPv4. Cloud providers, enterprises, ISPs, they all need it to stave off the CG-NAT as long as possible. Well, some friends came up with a pretty straightforward way to get it - or, according to some “completely break the internet”. We recorded this episode with Dave Taht (who you may remember from our podcast on bufferbloat ) and Seth David Schoen about some new drafts they wrote for the Unicast Use of the Formerly Reserved 240⁄4 , 127.0.0.0 (loopback space), the 0.0.0.0 block, and the 255.255.255 block, back in February. Needless to say, it was pretty interesting. Full of very polarizing topics (for oh-so-many reasons) this winding and wandering podcast lays out the history as well as the justifications for taking such address blocks - historically held as “untouchable” - and advocates for moving them into general use. Take a listen here and decide for yourself!