| 摘要 |
A tunneling method includes: managing a session entry table for storing information used for multicasting data transmitted from a first network having a first address format to a second network having a second address format different from the first address format; and tunneling multicasting data, generated by the first network, to the second network in accordance with the session entry table. Furthermore, a tunneling apparatus includes: a first interface adapted to interface with a first network having a first address format; a second interface adapted to interface with a second network having a second address format; a session entry table adapted to store information used for multicasting data transmitted from the first network to the second network; a table manager adapted to add a new entry, and to update and delete information of a previously stored old entry, with respect to the session entry table in accordance with information of the data transmitted and received via the first and second interfaces; an encapsulator adapted to encapsulate data of the first address format into data of the second address format to transmit the data from the first network to the second network; and a packet parser adapted to determine whether or not the data received via the first interface is multicasting data, and controlling the encapsulator and the table manager in accordance with the determination result.
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