alt Hacker News127.1 is the same as 127.0.0.1. 0 bytes are inserted based on the following:
x -> 0.0.0.x
x.y -> x.0.0.y
x.y.z -> x.y.0.z127.1 is the same as 127.0.0.1. 0 bytes are inserted based on the following:
x -> 0.0.0.x
x.y -> x.0.0.y
x.y.z -> x.y.0.z
But sometimes 127.1 means 127.1.0.0/16. For example in the output of `netstat -rn` on MacOS.