A number of interception related information (IRI) IP addresses, such as 128.0.0.1, are reserved for internal communication. 128.0.0.1 is the base of the IRI IP address. The upper limit of this range depends on the chassis configuration of the router and may use 129.x.x.x, 130.x.x.x, and so on. Use the CLI command show route table __juniper_private1__ to show the router’s configured IP addresses, including the reserved IRI IP addresses.