In one aspect of the present disclosure, a distribution package that is generated in advance is stored in a package DB, and information of a vehicle in which a target device is mounted is stored in a campaign DB. Vehicle related information includes a special flag indicating whether to generate a distribution package at that point in time. A package generation unit generates a distribution package upon receiving a package generation instruction and stores the distribution package in the package DB. When the special flag is in a reset state, the package generation unit reads the distribution package from the package DB and transfers the read distribution package to a package distribution unit. On the other hand, when the special flag is in a set state, the package generation unit generates a distribution package at that point in time.