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1. WO2007143833 - SYSTEM AND METHOD FOR HANDLING ADDRESS RESOLUTION PROTOCOL REQUESTS

Publication Number WO/2007/143833
Publication Date 21.12.2007
International Application No. PCT/CA2007/001044
International Filing Date 12.06.2007
Chapter 2 Demand Filed 11.01.2008
IPC
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04L 12/28 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
28characterised by path configuration, e.g. LAN or WAN
CPC
H04L 12/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
02Details
12Arrangements for remote connection or disconnection of substations or of equipment thereof
H04L 12/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
02Details
16Arrangements for providing special services to substations
18for broadcast or conference ; , e.g. multicast
H04L 29/12009
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
H04L 29/12018
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12018Mapping of addresses of different types; address resolution
H04L 29/1233
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
1233Mapping of addresses of the same type; Address translation
H04L 29/12811
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
12characterised by the data terminal
12009Arrangements for addressing and naming in data networks
12792Details
12811Caching of addresses
Applicants
  • RESEARCH IN MOTION LIMITED [CA]/[CA] (AllExceptUS)
  • DUNK, Craig [CA]/[CA] (UsOnly)
  • WANG, James [CA]/[CA] (UsOnly)
Inventors
  • DUNK, Craig
  • WANG, James
Agents
  • WILSON, Jenna, L.
Priority Data
06115333.412.06.2006EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR HANDLING ADDRESS RESOLUTION PROTOCOL REQUESTS
(FR) SYSTÈME ET PROCÉDÉ POUR GÉRER LES REQUÊTES DE PROTOCOLE DE RÉSOLUTION D'ADRESSE
Abstract
(EN)
A system and method for handling address resolution protocol requests at an intermediary device in a local area network. The intermediary device has an address resolution protocol cache for mapping Internet protocol addresses to physical layer addresses for devices in the local area network. The intermediary device receives a broadcast address resolution protocol request having an Internet protocol address for a device on the local area network. The address resolution protocol address contained in the broadcast address resolution protocol request is extracted and the address resolution protocol cache is accessed to seek to obtain a physical layer address mapped to the extracted Internet protocol address. As a result, a directed address resolution protocol request is forwarded from the intermediary device to the local area network device corresponding to the physical layer address obtained from the intermediary device data memory.
(FR)
La présente invention concerne un système et un procédé pour gérer les requêtes de protocole de résolution d'adresse, sur un dispositif intermédiaire dans un réseau local. Le dispositif intermédiaire possède un cache de protocole de résolution d'adresse afin de mettre en correspondance les adresses du protocole Internet avec les adresses de la couche physique pour les dispositifs du réseau local. Le dispositif intermédiaire possède une requête de protocole de résolution d'adresse de diffusion ayant une adresse de protocole Internet pour un dispositif sur le réseau local. L'adresse du protocole de résolution d'adresse contenue dans la requête au protocole de résolution d'adresse de diffusion est extraite et l'on accède au cache du protocole de résolution d'adresse pour obtenir une adresse de couche physique mise en correspondance sur l'adresse du protocole Internet extraite. En conséquence, une requête de protocole de résolution d'adresse dirigée est transmise du dispositif intermédiaire au dispositif du réseau local correspondant à l'adresse de couche physique obtenue par la mémoire de données du dispositif intermédiaire.
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