#!/bin/bash # # This script makes sure that 127.0.0.x is routable. On Darwin, there # is a bug that it isn't routable and this causes errors. # # Check if loopback is setup ping -c 1 -W 10 127.0.0.2 > /dev/null 2>&1 if [ $? -eq 0 ] then exit fi # If we're not on OS X, then error case $OSTYPE in darwin*) ;; *) echo "Can't setup interfaces on non-Mac. Error!" exit 1 ;; esac # Setup loopback for ((i=2;i<256;i++)) do sudo ifconfig lo0 alias 127.0.0.$i up done