A connection setting apparatus of configuring settings for connection with an external network is provided. The connection setting apparatus has a connector arranged and adapted to be connectable with a USB connector provided on a data communication card that is used to establish communication with the external network. In the connection setting apparatus, a storage is arranged and adapted to store identification information for identifying a carrier and a mobile communication network corresponding to the data communication card, in correlation with a connection setting provided for the carrier and the mobile communication network. The connection setting apparatus also has an acquirer arranged and adapted to obtain the identification information of the data communication card from the data communication card connected to the connector. The connection setting apparatus further has a setter arranged and adapted to specify a connection setting in correlation with the obtained identification information and actually configure connection settings based on the specified connection setting. This arrangement assures easy configuration of the network connection settings according to a simple algorithm.