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WO2007071369A1 - Dispositif de communication et procede de filtrage de donnees selon une politique de donnees - Google Patents

Dispositif de communication et procede de filtrage de donnees selon une politique de donnees Download PDF

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Publication number
WO2007071369A1
WO2007071369A1 PCT/EP2006/012232 EP2006012232W WO2007071369A1 WO 2007071369 A1 WO2007071369 A1 WO 2007071369A1 EP 2006012232 W EP2006012232 W EP 2006012232W WO 2007071369 A1 WO2007071369 A1 WO 2007071369A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
signalling
sip
communication
policy
Prior art date
Application number
PCT/EP2006/012232
Other languages
English (en)
Inventor
Holger Ziemek
Marius-Iulian CORÎCI
Radu Popescu-Zeletin
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to EP06841038A priority Critical patent/EP1969808A1/fr
Publication of WO2007071369A1 publication Critical patent/WO2007071369A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/256—NAT traversal
    • H04L61/2564—NAT traversal for a higher-layer protocol, e.g. for session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/256—NAT traversal
    • H04L61/2575—NAT traversal using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/256—NAT traversal
    • H04L61/2585—NAT traversal through application level gateway [ALG]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]

Definitions

  • FIG. 5 showing an example using UPnP
  • Fig. 6 showing an example using STUN
  • FIG. 11 showing a schematic representation of the optimized method for address translation overpassing
  • the invention comprises a communication device with a signalling data input comprising at least one SIP message, a data input, a selector for the at least one signalling data for scanning or filtering the signalling data according to at least one predefined signalling policy, a filter for the dynamical discrimination of the data input according to at least one signals received from the selector, a service device acting on the discriminated data input according to at least one data policy.
  • embodiments of the invention is appropriate in scenarios in which one or a set of local end devices connected to one or a set of locally interconnected IP-based communication networks wishes to communicate with one or a set of other end devices, either local or remote (i.e. connected via the Internet) (See Fig. IA) .
  • Embodiments of the described invention address these and further issues. They optimize the communication by:
  • Each SIP session is made of two or more transactions with no other than logical connection.
  • an entity To be able to start the transactions following the "INVITE" request, an entity must be able to find the other parties. For this it memorizes the address from the "Contact" header field that comes either with the initial request or with the response to it.
  • UPnP Universal ⁇ Plug and Play
  • STUN If there are no means of communicating with the address translator, a next possible solution might be for an end device to determine its external address-port pair is to ask an entity situated outside the address translator in the exterior network how it sees the source of a packet coming from this end device.
  • STUN Network address translators
  • J.Rosenberg, J. Weinberger, C. Huitema, R. Mahy RFC 3489 - STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) IETF
  • the Media Relay acts as the second endpoint to each of the actual endpoints that are attempting to communicate with each other.
  • a server in the middle of the SIP flow herein called a SIP Address Translation Proxy, that would manipulate the body of the SIP message in such a way as to instruct the endpoints to send media packets to the Relay instead of directly to each other.
  • the Relay would set up its own internal mapping of a session, noting the source address-port of each endpoint sending it media packets. It then uses that mapping to forward the media from endpoint to endpoint.
  • the ALG is using a different policy for each particular protocol it supports. A higher security level is achieved by this understanding of the relayed protocol .
  • the ALG is not limited to support only connection protocols like TCP, but also other UDP based protocols like TFTP. 3. If the ALG is used over a traversal application application, then it can examine the application data for occurness of the internal addresses and replace them with the addresses of the firewall's external interface. An application layer gateway could be developed as to deal with SIP protocol. In order to obtain such a result the address translator is doubled by a mechanism which alterates SIP packages. This mechanism introduces an important delay caused by the pre-sorting of all incoming traffic to the address translator.
  • One COMMDEVICE system is able to acquire'- the SIP messages from the at least one source and to select them in conformity with a set of data policies, by this stated that it can scan for specific data into the messages pertaining to the data that will be received during the consequent media session (s) .
  • This COMMDEVICE is able to intercept SIP messages that are sent from one or more sources and addressed to one or more destinations, matching certain criteria, as depicted in Figure 7.
  • the sources and the destinations of the SIP messages during a session provisioning may interchange, thus a COMMDEVICE can act as a simplex or a duplex SIP message interceptor.
  • Another possible solution is to preallocate an address-port on the external interface and to instruct the address translator to bind the local address-port pair with the one preallocated in the COMMDEVICE software.
  • the Session Manager logical entity in a COMMDEVICE enables the system to dynamically set the SIP retransmission timers to values appropriate for the types of links that are involved in the SIP transactions.
  • the messages sent by one end device that become redundant because of the properties of the exterior connection, like increased delay, congestion etc. are filtered by the COMMDEVICE.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé et un dispositif de communication pourvu d'une entrée de données de signalisation, et comprenant au moins un message SIP, une entrée de données, un sélecteur de données de signalisation pour scanner ou filtrer les données de signalisation selon au moins une politique de signalisation prédéfinie, un filtre pour la discrimination dynamique de l'entrée des données selon au moins un signal reçu du sélecteur, un service agissant sur l'entrée des données discriminées selon au moins une politique de données.
PCT/EP2006/012232 2005-12-19 2006-12-19 Dispositif de communication et procede de filtrage de donnees selon une politique de donnees WO2007071369A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06841038A EP1969808A1 (fr) 2005-12-19 2006-12-19 Dispositif de communication et procede de filtrage de donnees selon une politique de donnees

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP05027777 2005-12-19
EP05027737 2005-12-19
EP05027777.1 2005-12-19
EP05027737.5 2005-12-19

Publications (1)

Publication Number Publication Date
WO2007071369A1 true WO2007071369A1 (fr) 2007-06-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/012232 WO2007071369A1 (fr) 2005-12-19 2006-12-19 Dispositif de communication et procede de filtrage de donnees selon une politique de donnees

Country Status (2)

Country Link
EP (1) EP1969808A1 (fr)
WO (1) WO2007071369A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013155406A1 (fr) * 2012-04-12 2013-10-17 The Chinese University Of Hong Kong Contragestion et traitement d'une inflammation par la modulation de l'activité d'un canal sodique dans l'épithélium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001091389A2 (fr) * 2000-05-22 2001-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Police influencee par l'application
WO2004029854A2 (fr) * 2002-09-27 2004-04-08 Nokia Corporation Controle de qualite de service ameliore
WO2005064890A1 (fr) * 2003-12-22 2005-07-14 Nokia Corporation Methode permettant la mobilite ip d'appareils mobiles dans des reseaux 3gpp avec des communications etablies par protocole d'ouverture de session (sip)
FR2865595A1 (fr) * 2004-01-27 2005-07-29 France Telecom Procede de filtrage de paquets de flux media ip echanges dans un reseau de telecommunication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001091389A2 (fr) * 2000-05-22 2001-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Police influencee par l'application
WO2004029854A2 (fr) * 2002-09-27 2004-04-08 Nokia Corporation Controle de qualite de service ameliore
WO2005064890A1 (fr) * 2003-12-22 2005-07-14 Nokia Corporation Methode permettant la mobilite ip d'appareils mobiles dans des reseaux 3gpp avec des communications etablies par protocole d'ouverture de session (sip)
FR2865595A1 (fr) * 2004-01-27 2005-07-29 France Telecom Procede de filtrage de paquets de flux media ip echanges dans un reseau de telecommunication

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIRI KUTHAN GMD FOKUS JONATHAN ROSENBERG DYNAMICSOFT: "Middlebox Communication: Framework and Requirements", IETF STANDARD-WORKING-DRAFT, INTERNET ENGINEERING TASK FORCE, IETF, CH, November 2000 (2000-11-01), XP015031298, ISSN: 0000-0004 *
KHARTABIL M LONNFORS J COSTA-REQUENA E LEPPANEN NOKIA H: "An Extensible Markup Language (XML) Based Format for Event Notification Filtering", IETF STANDARD-WORKING-DRAFT, INTERNET ENGINEERING TASK FORCE, IETF, CH, no. 1, 24 October 2003 (2003-10-24), XP015030876, ISSN: 0000-0004 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013155406A1 (fr) * 2012-04-12 2013-10-17 The Chinese University Of Hong Kong Contragestion et traitement d'une inflammation par la modulation de l'activité d'un canal sodique dans l'épithélium

Also Published As

Publication number Publication date
EP1969808A1 (fr) 2008-09-17

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