Title:
TRANSMITTER, RECEIVER, TRANSMITTING METHOD, AND TRANSFER METHOD
Document Type and Number:
Japanese Patent JP3796507
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a transmitter, a receiver, a transmitting method, and a transfer method capable of judging whether or not another device connected through a network is one belonging to a local network the same as that of a device itself.
SOLUTION: The device controller 202 of a device A201 judges that a device B211 does not belong to a local network the same as that of a device A211, when the size of a packet transmitted from the device A201 to the device B211 is 1,500 bytes, and a response packet to a packet inhibiting IP fragmentation is an ICMP packet informing that the size of a packet is too long, or when a response packet from the device B211 to be transmitted when the device B211 normally receives a packet transmitted from the device A201 is a packet containing data representing a device not belonging to a local network the same as that of the device A201.
Inventors:
Takashi Nishimura
Application Number:
JP2004270276A
Publication Date:
July 12, 2006
Filing Date:
September 16, 2004
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04L12/28
Domestic Patent References:
| JP2004336618A |
Foreign References:
| WO2004030290A1 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai