Method and arrangement for providing a wireless mesh network

Patent metadata

Field	Value
Publication number	US-2016134585-A1
Application number	US-201614995423-A
Country	US
Kind code	A1
Filing date	Jan 14, 2016
Priority date	Aug 24, 2006
Publication date	May 12, 2016
Grant date	—

Abstract

A method and an arrangement for providing a wire-free mesh network are provided. An approval procedure is carried out in situations in which a subscriber who is registering on the mesh network transmits an MAC address which already exists in the mesh network, such that two different subscribers within the mesh network never have identical MAC addresses.

First claim

1 .- 24 . (canceled)

25 . A communication apparatus comprising:
a first node configured to respond to a registration message received from a registering communication entity by assessing a registering MAC address of the registering communication entity such that: when the registering MAC address is disjoint of MAC addresses reachable via a subnetwork to which the first node is connected, the first node connecting the registering communication entity in a manner of a station of the subnetwork; and when the registering MAC address is not disjoint of the reachable MAC addresses such that the registering MAC address already is reachable via the subnetwork, the first node implementing an approval procedure with the registering communication entity to prevent two different subscribers within the subnetwork from having identical MAC addresses; wherein the approval procedure comprises:
requesting, by the first node, a first item of check information from the registering communication entity by way of a first route between the first node and the registering communication entity formed for facilitating registration of the registering communication entity;
requesting, by the first node, a second item of check information from the registering communication entity by way of a second route such that a communication entity having the registering MAC address in the subnetwork receives a request for the second item of check information to forward to the registering communication entity;
the first node checking a correlation of the first item of check information with the second item of check information after the first and second items of check information are received from the registering communication entity; the first node connecting the registering communication entity in the manner of a station of the subnetwork when at least a specific degree of correlation is achieved between the first item of check information and the second item of check information; and the first node rejecting the registering communication entity when the specific degree of correlation is not achieved.

26 . The communication apparatus of claim 25 , wherein the approval procedure also comprises:
the first node receiving the first item of check information from the registering communication entity via the first route before performing the checking of the correlation.

27 . The communication apparatus of claim 26 , wherein the approval procedure also comprises:
the first node receiving the second item of check information from the registering communication entity via the communication entity having the registering MAC address in the subnetwork forwarding a response to the request for the second item of check information from the registering communication entity to the first node before performing the checking of the correlation.

28 . The communication apparatus of claim 26 , wherein the approval procedure also comprises:
the first node receiving the second item of check information from the registering communication entity via the second route before performing the checking of the correlation.

29 . The communication apparatus of claim 28 , comprising:
the communication entity having the registering MAC address in the subnetwork, the first node and the communication entity having the registering MAC address in the subnetwork being communicatively connected in the subnetwork.

30 . The communication apparatus of claim 25 , wherein the first item of check information is at least one first parameter and the second item of check information is the at least one first parameter.

31 . The communication apparatus of claim 30 , wherein the at least one first parameter comprises at least one of a serial number of the registering communication entity, a type of the registering communication entity, a software version of software run on the registering communication entity, at least one counter value of the registering communication entity, a sequence number counter for routing messages, a route request sequence number of the registering communication entity, and a packet counter.

32 . The communication apparatus of claim 25 , wherein the correlation of the first item of check information with the second item of check information requires the first item of check information to be identical with the second item of check information.

33 . The communication apparatus of claim 25 , wherein the approval procedure also comprises:
setting up a direct link between the first node and the registering communication entity that is conditional upon the first node receiving the first and second items of check information and finding the received first and second items of check information having the specific degree of correlation.

34 . The communication apparatus of claim 33 , wherein the approval procedure is configured such that the requests for the first and second items of check information are sent by the first node after the direct link is established.

35 . The communication apparatus of claim 33 , wherein approval procedure also comprises:
cancelling the established direct link in response to the specific degree of correlation between the first and second items of check information not being achieved.

36 . A method for providing a wireless local network comprising:
a first node of the subnetwork comparing a registering MAC address received from a registering communication entity with MAC addresses that are reachable via the subnetwork such that: when the registering MAC address is disjoint of the reachable MAC addresses, the first node connecting the registering communication entity in a manner of a station of the subnetwork; and when the registering MAC address is not disjoint of the reachable MAC addresses such that the registering MAC address already is reachable via the subnetwork, the first node implementing an approval procedure with the registering communication entity to prevent two different subscribers within the subnetwork from having identical MAC addresses.

37 . The method of claim 36 , wherein the subnetwork is a mesh network comprised of a plurality of mobile communication terminals.

38 . The method as claimed in claim 36 , wherein the approval procedure comprises:
requesting, by the first node, a first item of check information from the registering communication entity by way of a first route between the first node and the registering communication entity formed for facilitating registration of the registering communication entity, requesting, by the first node, a second item of check information from the registering communication entity by way of a second route such that a communication entity having the registering MAC address in the subnetwork receives a request for the second item of check information to forward to the registering communication entity; the first node checking a correlation of the first item of check information with the second item of check information after the first and second items of check information are received from the registering communication entity, the first node connecting the registering communication entity in the manner of a station of the subnetwork when at least a specific degree of correlation is achieved between the first item of check information and the second item of check information, and the first node rejecting the registering communication entity when the specific degree of correlation is not achieved.

39 . The method of claim 38 , wherein the approval procedure also comprises:
the first node receiving the first item of check information from the registerin

Assignees

• Unify Gmbh & Co Kg

Inventors

• Falk Rainer
• Kohlmayer Florian

Classifications

• H04W12/06

  Authentication · CPC title

• H04L63/1466

  Active attacks involving interception, injection, modification, spoofing of data unit addresses, e.g. hijacking, packet injection or TCP sequence number attacks · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W76/18

  Management of setup rejection or failure · CPC title

• H04L63/0869

  for achieving mutual authentication (cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273) · CPC title