Title:
COMMUNICATION DEVICE AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/221207
Kind Code:
A1
Abstract:
A switching hub that does not have a port mirror function or a switching hub (3) that is connected to a relay device (2) being an AP of a wireless LAN, overwrites, with a dummy MAC address, a MAC address corresponding to a communication destination IP address of hosts 1A, 1B by using an ARP reply portion of an ARP, overwrites, upon reception of an Ethernet frame in which the dummy MAD address is set as a destination MAC address from the relay device (2), the destination MAC address of the Ethernet frame with the original MAC address, mirror-transmits the address, overwrites, with a dummy MAC address, a transmission source MAC address of the Ethernet frame having been overwritten with the original MAC address, and transmits the address to the relay device (2).
Inventors:
IGARASHI YUMINOBU (JP)
Application Number:
PCT/JP2019/019400
Publication Date:
November 21, 2019
Filing Date:
May 15, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L12/28
Foreign References:
| JP2008109357A | 2008-05-08 | |||
| JP2006074705A | 2006-03-16 | |||
| JP2005518762A | 2005-06-23 | |||
| JP2000183936A | 2000-06-30 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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