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Device and method for dynamically changing network address

A network address and dynamic technology, applied in transmission systems, electrical components, etc., can solve problems such as inability to communicate at all, and achieve the effect of enhancing security and reducing possibility

Active Publication Date: 2020-07-21
CHINA NAT DIGITAL SWITCHING SYST ENG & TECH R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, there is no isolation method between hosts in the same LAN, either no communication between two hosts, or any communication between two hosts, so that once a host is controlled by an attacker, it can be easily It is easy to carry out further intranet penetration attacks based on the controlled host

Method used

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  • Device and method for dynamically changing network address
  • Device and method for dynamically changing network address
  • Device and method for dynamically changing network address

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Combining figure 1 - Fig. 8, a network address dynamic hopping device (IP Dynamic Transforming Device, IDTD), including a data unit, a control unit and a management unit. The data unit includes a forwarder, which is mainly responsible for modifying, forwarding, and reporting statistics on IP packets according to the flow table rules; the central control unit includes a domain name resolution module, a routing protocol module, and a domain name address jump and mapping management module, which is mainly responsible for management based The policy dynamically generates flow table rules, and at the same time performs protocol interaction with other IP address dynamic hopping devices to maintain the consistency of flow table rules among all devices. The management unit includes an access management policy module and a group management policy module, responsible for access control management and authority control management of access users and access groups.

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PUM

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Abstract

The invention belongs to the technical field of an IP address conversion method during the transmission of IP packet data, and specifically relates to a device and method for dynamically changing network addresses. The basic idea is on-demand communication under policy management. First of all, when the user host needs to communicate with the outside world, it registers itself in the network and obtains its own network identity; otherwise, the user host is invisible on the network. Secondly, only when the host user informs the peer that needs to communicate with its network identity, can the peer host locate the host in the network; any other host cannot access the host without knowing the network identity of the host. Finally, the host access process and mutual access between hosts are strictly restricted by the authority control policy. On the one hand, unauthorized hosts cannot access the network; The network identifier of the two parties does not belong to the same authorization group, and they cannot communicate with each other.

Description

technical field [0001] The invention belongs to the technical field of an IP address transformation realization method during the transmission process of IP packet data, and in particular relates to a device and a method for dynamically changing a network address. Background technique [0002] According to the communication principle of the Internet, after each device accesses the network, configures or dynamically obtains an IP address, it can access other IP network hosts or devices, and at the same time enable itself to be accessed by other IP network hosts or devices. It is precisely because of this openness and the continuous online presence of users that many security threats have been introduced. [0003] First of all, no matter whether the user host needs to access resources in the network, it will always be online so that it can be accessed by other user hosts. This provides conditions for attackers to scan and infiltrate. Secondly, the IP address of the user host...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L29/06
CPCH04L61/2503H04L63/105H04L63/1441H04L61/4511
Inventor 马海龙江逸茗胡宇翔卜佑军白冰贺磊
Owner CHINA NAT DIGITAL SWITCHING SYST ENG & TECH R&D CENT