Roaming method and device

An IP address, host technology, applied in the field of network communication, can solve problems such as interruptions

Active Publication Date: 2021-02-26
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, because the TCP / IP connection established by the host before roaming (specifically, the TCP / IP connection established between the host and the server) is bound to the IP address of the host before roaming, once the IP address of the host is modified after roaming, Then the TCP / IP connection established by the host before roaming will be interrupted, and the host needs to use the modified IP address to re-establish a TCP / IP connection with the server to resume communication with the server

Method used

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Examples

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Embodiment Construction

[0020] In network communication, the "triangular routing" method is often used to ensure that the TCP / IP connection established by the host before roaming will not be interrupted due to the roaming of the host, and the communication will not be interrupted after the host roams. The following describes:

[0021] In the "triangular routing" method, when a host roams from one network (recorded as the source network) to another network (recorded as the destination network), the IP address of the host is not modified, but the router accessed by the host on the destination network (recorded as the destination router) to notify the router connected to the host in the source network (recorded as the source router), if a message sent to the host (the destination IP address is the IP address of the host) is received, it will be forwarded to the destination router, and the destination The router then forwards to the host. Since the packet passes through the source router and the destinat...

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Abstract

This application provides a roaming method and device. In this application, by modifying the TCP / IP connection established between the host and the peer from the first IP address that should be bound to the host in the first network to the first IP address that does not change with the host roaming The address of the host, so that all parameters associated with the TCP / IP connection established between the host and the peer will not change because the host roams from the first network to the second network, so even if the host roams from the first network to the second Network, the TCP / IP connection established between the host and the peer can still be maintained, which ensures that the TCP / IP connection established by the host before roaming will not be interrupted by the host roaming, and the communication will not be interrupted after the host roams.

Description

technical field [0001] The present application relates to network communication technology, in particular to a roaming method and device. Background technique [0002] In network communication, the TCP / IP connection established between the host (also called the client) and the server is bound to the IP address of the host, the IP address of the server, and the like. [0003] In practical application, the host will roam from the current network to another network. When the host roams to another network, in order to ensure that the traffic sent to the host is not interrupted, the IP address of the host needs to be modified. The modified IP address belongs to the corresponding IP network segment of the roamed network. [0004] However, because the TCP / IP connection established by the host before roaming (specifically, the TCP / IP connection established between the host and the server) is bound to the IP address of the host before roaming, once the IP address of the host is modi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/26H04W76/25
CPCH04W8/26H04W76/25H04L61/5014H04L69/161H04L69/169
Inventor 王玮
Owner NEW H3C TECH CO LTD
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