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Title:
SYSTEM, METHOD AND PROGRAM FOR ESTIMATING ADDRESS, AND NETWORK DEVICE
Document Type and Number:
Japanese Patent JP3736451
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To estimate an IP address which is assigned to a gateway device from a packet travelling across a network.
SOLUTION: A controller 11 identifies the IP address which is assigned to a network device having a MAC address through the use of the MAC address corresponding to an address list with two kinds of IP addresses registered therein (s17). The identified IP address is adopted as the IP address which is assigned to a router 20 (s18). When there are not less than the prescribed number of address lists where only one kind of IP address is registered (s19: YES), a subnet mask is calculated based on the IP addresses registered in the address lists and the IP address of the router 20 (s20).


Inventors:
大原 清孝
Application Number:
JP2001000384700
Publication Date:
January 18, 2006
Filing Date:
December 18, 2001
Export Citation:
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Assignee:
ブラザー工業株式会社
International Classes:
H04L12/70; H04L12/28; H04L29/12; (IPC1-7): H04L12/56
Domestic Patent References:
JP11187057A
JP9135261A
Attorney, Agent or Firm:
足立 勉
武藤 勝典