WO2004075512B1 - Discovery of an application server in an ip network - Google Patents

Discovery of an application server in an ip network

Info

Publication number
WO2004075512B1
WO2004075512B1 PCT/IB2004/000957 IB2004000957W WO2004075512B1 WO 2004075512 B1 WO2004075512 B1 WO 2004075512B1 IB 2004000957 W IB2004000957 W IB 2004000957W WO 2004075512 B1 WO2004075512 B1 WO 2004075512B1
Authority
WO
WIPO (PCT)
Prior art keywords
address
domain name
application server
name
reverse
Prior art date
Application number
PCT/IB2004/000957
Other languages
French (fr)
Other versions
WO2004075512A1 (en
Inventor
Kuntal Chowdhury
Marvin Bienn
Original Assignee
Nortel Networks Ltd
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 Nortel Networks Ltd filed Critical Nortel Networks Ltd
Publication of WO2004075512A1 publication Critical patent/WO2004075512A1/en
Publication of WO2004075512B1 publication Critical patent/WO2004075512B1/en

Links

Classifications

    • 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
    • H04L65/1096—Supplementary features, e.g. call forwarding or call holding
    • 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
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • 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
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4541—Directories for service discovery
    • 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
    • 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
    • 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
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation

Abstract

The present invention provides for the discovery of an Internet Protocol (IP) address of an application server (204) associated with an IP network. An IP (202) device is granted access to an IP network. Access to the IP network assumes an IP address assignment (220) for the IP device. The network domain name is discovery by performing a Reverse DNS query (230) on the assigned IP address or an IP address associated with the IP network device granting access to the IP device. Using a application server domain name (derived from the network domain name) a DNS query (250) is perform to determine all IP addresses associated with the application server domain name.

Claims

AMENDED CLAIMS
[received by the International Bureau on 17 September 2004 (17.09.2004); original claims 1-20 replaced by new claims 1-20 (4 pages)]
+ STATEMENT
What is claimed is:
1. A method of determining an Internet Protocol (EP) address of an application server of a serving network, comprising; receiving an IP address of a requestor; performing a reverse domain name query as a function of the received IP address; receiving a response to the reverse domain name query; deriving serving network domain name information from the reverse domain name query; prefacing an application server name to the derived serving network domain name information; performing a domain name query as a function of the derived serving network domain name prefaced with the application server name; and receiving an IP address as a function of the derived serving network domain name prefaced with the application server name.
2. The method of Claim 1, wherein the step of receiving an IP address further comprises receiving an IP address of user equipment (UE),
3. The method of Claim 1, wherein the step of receiving an IP address further comprising receiving an IP address associated with a device providing IP address to the serving network
4. The method of Claim 3, further comprising transmitting an IP of address of a gateway to the UE.
5. The method of Claim 1, wherein the step of deriving the serving network domain name information from the reverse domain name query further comprises deriving information from a Uniform Resource Identifier (URI),
6. The method of Claim 1, wherein the application server is a Proxy Call Session Control Function (P-CSCF) server name.
7. A user equipment (UE) for determining the application server name associated with a serving network, comprising: means for receiving an IP address; means for receiving a response to a reverse domain name query; means for receiving an IP address as a function of a derived domain name prefaced by an application server name; a memory for storing at least one application server name; a requestor configured to initiate contact to a network; a memory for storing a received IP address requested by the requestor; a reverse domain name system (DNS) query initiator configured to use the contents of the memory for storing the received IP address; a memory for storing reverse DNS query information generated as a result of the reverse DNS query initiator; logic to extract a domain name from the reverse DNS query information; logic to preface at least one application server name to the domain name extracted from the reverse DNS query information; a DNS query initiator configured to transmit the prefaced application server name and domain name extracted from the reverse DNS query information; and memory for storing the IP application of an application server extracted from the reverse DNS query information.
8. The UE of Claim 7, wherein the requestor is configured to request an IP address for theUE.
9. The UE of Claim 7, wherein the requestor is configured to request an IP address associated with a device providing IP address to the serving network,
10. The UE of Claim 7, wherein the logic to extract a domain name from the reverse DNS query information comprises software.
11. The UE of Claim 7, wherein the logic to extract a domain name from the reverse DNS query information comprises hardware,
AMENDED SHEET (ARTICLE 19)
15
12. The UE of Claim 7, wherein the at least one application server name comprises a plurality of server names.
13. The UE of Claim 7, wherein the at least one application server name comprises P- CSCE
1 . The UE of Claim 7, wherein the UE comprises an IP capable device.
15. A system for determining an IP address of an application server of a serving network, comprising; an access gateway; a DNS associated with the serving network and coupled to the access gateway; an UE in communication with the visited network, wherein the UE is configured to: request an IP address from the visited network; transmit an IP address of the UE or of the access gateway; receive the requested IP address associated with the UE; receive a response to a reverse domain name query as a function of the received requested IP address; derive domain name information from the reverse domain name query; preface an application server name to the extracted domain name, thereby generating a domain-specific application server name; perform a domain name query as a function of the domain-specific application server name; and receive an IP address as a function of the domain-specific application server name.
16. The system of Claim 15, wherein the serving network has a universal resource URI.
17. The system of Claim 15, wherein the requestor is configured to request an IP address for the UE.
18. The system of Claim 15, wherein the requestor is configured to request an IP address associated with a device providing IP address to the serving network.
AMENDED SHEET (ARTICLE 19) 16
19. The system of Claim 18, further comprising transmitting an IP of address of a gateway to the UE.
20. The system of Claim 15, wherein the logic to extract a domain name from the reverse DNS query.
AMENDED SHEET (ARTICLE 19) 17
PCT/IB2004/000957 2003-02-18 2004-02-17 Discovery of an application server in an ip network WO2004075512A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44818803P 2003-02-18 2003-02-18
US60/448,188 2003-02-18

Publications (2)

Publication Number Publication Date
WO2004075512A1 WO2004075512A1 (en) 2004-09-02
WO2004075512B1 true WO2004075512B1 (en) 2004-11-04

Family

ID=32908553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/000957 WO2004075512A1 (en) 2003-02-18 2004-02-17 Discovery of an application server in an ip network

Country Status (2)

Country Link
US (1) US8645408B2 (en)
WO (1) WO2004075512A1 (en)

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US20070055749A1 (en) * 2005-09-06 2007-03-08 Daniel Chien Identifying a network address source for authentication
US9015090B2 (en) 2005-09-06 2015-04-21 Daniel Chien Evaluating a questionable network communication
JP4635855B2 (en) * 2005-12-13 2011-02-23 株式会社日立製作所 Data communication method and system
US8214899B2 (en) * 2006-03-15 2012-07-03 Daniel Chien Identifying unauthorized access to a network resource
US8442485B2 (en) * 2006-06-19 2013-05-14 Cisco Technology, Inc. System and method for measuring and reporting service usage
DE102007015917B3 (en) * 2007-04-02 2008-09-11 Siemens Ag Method and apparatus for a media independent handover in a communication network
EP2198590B1 (en) * 2007-08-27 2016-07-13 T-Mobile International AG Parameterizable selection of a communication system on the basis of name resolution mechanisms
CN101420762B (en) * 2007-10-23 2011-02-23 中国移动通信集团公司 Access gateway selection method, system and gateway selection execution node
CN102017705A (en) * 2008-05-09 2011-04-13 爱立信电话股份有限公司 Systems and methods for selecting a gateway general packet radio service (GPRS) support node
US20100174829A1 (en) * 2009-01-06 2010-07-08 Barracuda Networks, Inc Apparatus for to provide content to and query a reverse domain name system server
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US10084791B2 (en) 2013-08-14 2018-09-25 Daniel Chien Evaluating a questionable network communication
US10542006B2 (en) 2016-11-22 2020-01-21 Daniel Chien Network security based on redirection of questionable network access
US10382436B2 (en) 2016-11-22 2019-08-13 Daniel Chien Network security based on device identifiers and network addresses
CN110225144B (en) * 2018-03-02 2021-03-23 华为技术有限公司 Method for obtaining and providing service, user equipment and management server
US11188622B2 (en) 2018-09-28 2021-11-30 Daniel Chien Systems and methods for computer security
US10826912B2 (en) 2018-12-14 2020-11-03 Daniel Chien Timestamp-based authentication
US10848489B2 (en) 2018-12-14 2020-11-24 Daniel Chien Timestamp-based authentication with redirection
US11032163B2 (en) 2019-10-25 2021-06-08 Verizon Patent And Licensing Inc. Method and system for selection and orchestration of multi-access edge computing resources
US11677754B2 (en) 2019-12-09 2023-06-13 Daniel Chien Access control systems and methods
US11438145B2 (en) 2020-05-31 2022-09-06 Daniel Chien Shared key generation based on dual clocks
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Also Published As

Publication number Publication date
US20040186850A1 (en) 2004-09-23
US8645408B2 (en) 2014-02-04
WO2004075512A1 (en) 2004-09-02

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