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Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile phone

A mobile node, home agent technology, applied in the direction of data exchange through path configuration, radio/inductive link selection arrangement, electrical components, etc., can solve the problem of not being able to provide seamless transition easily

Active Publication Date: 2006-08-02
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The method in FIG. 1 cannot easily provide seamless transition between network driver A 105 and network driver B 106

Method used

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  • Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile phone
  • Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile phone
  • Secure and seamless roaming between internal and external networks, switching between double and triple tunnel, and protecting communication between home agent and mobile phone

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Embodiment Construction

[0030] Aspects of the invention relate to allowing secure network roaming. It is to be noted that various connections between units are set forth in the following description. It is to be noted that these connections may generally be direct or indirect unless otherwise indicated, and this description is not intended to be limiting in this regard.

[0031] The following description is divided into the following sections to aid the reader's understanding: Terminology; General Architecture; Data Flow; Security Considerations and Responses; and Detailed Data Flow and Routing Tables.

[0032] the term

[0033] A list of terms used in this application is provided below:

[0034] network node

[0035] a.MN: mobile node

[0036] b.CH: correspondent host

[0037] c.x-HA: External Home Agent (SMG)

[0038] d.i-HA: Internal Home Agent

[0039] e.VPN-GW: VPN Gateway

[0040] MN network interface (including pseudo-interface):

[0041] a.phy-IF: physical interface (wired Ethernet o...

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Abstract

Describing a system and method for secure seamless roaming between internal and external networks. Double and triple tunnel are used to connect the mobile nodes to communication host, the mobile nodes have the performance that it can connect two networks at the same time to implement seamless roaming between networks. For example, this system can be contained in the external assignment agent (605) and secure gateway (606) in demilitarization area between internal assignment agent (602) and two firewalls (603, 604) in virtual private network, moreover, tunnel contains internal mobile IP tunnel (610), and the tunnel is contained in the IPSec tunnel optionally and in the external mobile IP tunnel (608). In an implementation case, the mobile node (607) includes the application to visit the external and internal MIP drives which connect to a first and second network drive separately. In an another implementation case, responding a second connection building with a second network drive, and communication transfers to a second network from a first network.

Description

[0001] Related application information [0002] This application claims US Application 60 / 488,809, filed July 22, 2003, entitled "Seamless and Secure WAN-LAN Roaming," and filed July 21, 2004, entitled "Secure and Seamless WAN-LAN Roaming" priority of these applications, the contents of which are expressly incorporated herein by reference. technical field [0003] Aspects of the invention relate to wireless communications. Aspects of the invention relate, inter alia, to maintaining connectivity while roaming between wireless networks. Background technique [0004] Different wireless technologies exist for mobile data users. Mobile data users can use cellular technology, IEEE 802.11-based technology, Bluetooth, and other wireless technologies to connect to the network. While handing off between access points in a single network is well known, handing off between access points running different wireless protocols is difficult. At this time, users expect seamless mobility d...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/06H04Q7/38
Inventor 谷内谦一张涛巴蒂马·阿格拉瓦尔阿舒托什·杜塔苏尼尔·麦德哈尼马场伸一藤本谦作胜部泰弘儿玉利一大场义洋
Owner TELEFON AB LM ERICSSON (PUBL)