Patent ID: 7948925

Claim:
A communication device having a first communication section that supports a first communication mode having a low communication rate and a second communication section that supports a second communication mode having a higher communication rate than the first communication mode, the communication device comprising: a packet dividing section configured to divide a communication packet for the first communication mode into a first portion containing authentication information used for a connection authentication for the second communication mode and a second portion other than the first portion; an information adding section configured to add, to the first portion, information regarding the second portion obtained as a result of division performed by the packet dividing section; and a communication control section configured to perform a control to cause the first communication section to transmit the first portion to which the information regarding the second portion has been added by the information adding section, and to cause the second communication section to transmit the second portion after the connection authentication succeeds using the authentication information contained in the first portion.