title: Change value of request.remote_ip in Ruby on Rails
body: <p>For test purposes I want to change the return value of request.remote_ip. While being on my development machine it returns always 127.0.0.1 as it should but I would like to give myself different fake IPs to test the correct behavior of my app without deploying it to an live server first!</p>
  
  <p>Thank you.</p>