FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Not applicable
Article Id 195597



To avoid publication of public IP addresses that belong to Fortinet or any other organization, the IPv4 addresses used in Fortinet technical documentation are fictional and are from the private IP address ranges defined in RFC 1918: Address Allocation for Private Internets, available at


Public and Private IP addresses:

A Private IP address is an IP address that cannot be used in the Internet. Private IP addresses are reserved for use on private networks.The private IP address ranges are:


- -

- -

- -


A public IP address is an IP address that can be used on the public Internet. Most other IPv4 IP addresses are public IP addresses, with the exception of the addresses described below.

In Fortinet technical documentation, to avoid publication of public IP addresses that belong to real organizations, private IP addresses are used for both private and public IP addresses in documentation examples.


IP multicast addresses:

Reserved multicast IP addresses are safe to use in documentation because they do not belong to anyone. Fortinet recommends using addresses in the range - for hosts that do not need access to the Internet or another network. A majority of the remaining multicast addresses are already being used for specific projects and companies.


Loopback address:

The loopback address - - is instantly recognizable as such by network administrators and developers. This address is also known as the localhost address.


IPv6 addresses:

RFC 3849: IPv6 Address Prefix Reserved for Documentation( states that the IPv6 address prefix 2001:DB8::/32 is reserved for use in documentation.


Special-use TEST-NET addresses:

RFC 3330: Special-use IPv4 Addresses
( states that the block is assigned as "TEST-NET" for use in documentation and sample code. It is often used in conjunction with domain names or in vendor and protocol documentation.


Additional information:

For additional information that includes a summary table, see RFC 3330: Special-Use IPv4 Addresses, available at