IP Private address ranges

by Wayne Maples [Published on 20 April 2004 / Last Updated on 20 April 2004]

Setting up a private network for your Windows NT workstations? Don't have time, or can't get a registered address range for your network. According to RFC1597, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space your use for private networks:
  • 10.0.0.0 - 10.255.255.255
  • 172.16.0.0 - 172.31.255.255
  • 192.168.0.0 - 192.168.255.255
Read RFC1597 for background information including pros/cons of use of private ip addresses.

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