| 摘要 |
A communication device, a communication method and a program can connect two different networks to form a single network without wasting MAC addresses. Address preparing section 15 prepares a pseudo MAC address that corresponds to the node ID stored in the origin ID field 142 and the offset stored in the destination offset field 143 of the received packet and stores it in an IEEE 1394-Ethernet conversion table 62. At this time, the address preparing section 15 prepares the pseudo MAC address B by changing the IP address B of the IEEE 1394 terminal 6 stored in the origin IP address field 133 from a decimal number to a hexadecimal number and localizing the L-bit.
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