IP Networks

  • IP addresses correspond (pretty roughly) to a single machine
  • There are two standards for IP addresses: IPv4 and IPv6
  • Generally look something like a collection of 4 numbers 0-255 for IPv4
  • Most IP addresses could correspond to a machine on the internet (public IP)
  • Some IPs correspond to "private networks"
  • These private IPs get reused all over the place (in private networks)
  • You probably have a private IP address and your whole household probably shares a public IP
  • You need a public IP to host a web site

16 / 24