IPv6 Interfaces Overview
For the interfaces on a router to support IPv6, you must configure them, specifying properties such as the interface location (that is, in which slot the Flexible PIC Concentrator [FPC] is installed and in which location on the FPC the Physical Interface Card [PIC] is installed), the interface type (such as SONET or Asynchronous Transfer Mode [ATM]), encapsulation, interface-specific properties, and an IPv6 address. You can configure the interfaces that are in the router, and you can also configure interfaces that you might add in the future. When an interface appears, the JUNOS software detects its presence and applies the appropriate configuration to it.