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New connection number test method, system and device in network address translation

A technology of network address translation and testing method, which is applied in the field of testing the number of newly established connections of network address translation, and can solve the problems of not having universal applicability, high cost investment, complicated operation, etc.

Inactive Publication Date: 2012-07-25
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method, system and device for testing the number of new connections of network address translation, which are used to solve the problems of complex operation and high cost in the prior art when using high-end special test equipment to test the number of new connections of network address translation. issues of general applicability

Method used

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  • New connection number test method, system and device in network address translation
  • New connection number test method, system and device in network address translation
  • New connection number test method, system and device in network address translation

Examples

Experimental program
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Embodiment 1

[0030] The NAT method for testing the number of new connections provided by Embodiment 1 of the present invention passes figure 1 The system shown implements the test of the number of newly established connections for network address translation, and its flow is as follows figure 2 As shown, the execution steps are as follows:

[0031] Step S11: Control the first tester to send a set number of data packets to the device under test at a set sending rate.

[0032] For example figure 1 The tester 1 in is used as the first tester to send data packets to the device under test.

[0033] Step S12: Acquiring the number of data packets after network address translation received by the second tester from the device under test.

[0034] For example figure 1 The tester 2 in the tester is used as the second tester to receive the data packet after the network address translation of the device under test. The device under test will convert the source address of the data packet sent by ...

Embodiment 2

[0064] The method for testing the number of newly established connections of NAT provided by Embodiment 2 of the present invention illustrates the specific process of testing the number of newly established connections of NAT through a specific example, such as image 3 As shown, the execution steps are as follows:

[0065] Step S21: Control the first tester to send a set number of data packets to the device under test according to the selected sending rate.

[0066] For example: if figure 1 In the system shown, the tester can be a PC sending and receiving package software or a low-end tester. Wherein, the tester 1 is used as the first tester to send data packets to the device under test, and the address of the data outlet of the tester 1 is 10.1.1.2.

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Abstract

The invention discloses a new connection number test method, a system and a device in network address translation (NAT), wherein the method comprises the following steps: whether network address translation is completely carried out on the received data packet by test equipment is judged according to the receiving quantity of the data packets that a second test instrument receives the NAT from the tested equipment when a first test instrument transmits data packets with set transmitting quantity to tested equipment with setting transmitting rate; the transmitting rate is adjusted according tothe judgment result until the lower limit and the upper limit of the rate that the first test instrument transmits the data packet are determined; the transmitting rate is converged and adjusted according to the determined upper limit and the determined lower limit of the rate until the critical transmitting rate that the transmitting quantity is equal to the receiving quantity is determined, so as to obtain the NAT new connection number of the tested equipment. The new connecting number of the tested equipment is determined according to the network address translation capacity of the test equipment, the method is simple and convenient and has low cost input, and has strong generality and general applicability.

Description

technical field [0001] The invention relates to the field of network technology, in particular to a method, system and device for testing the number of newly established connections of network address translation. Background technique [0002] Network Address Translation (NAT, Network Address Translation) is a technology that translates an internal private network IP address into a legal network IP address. Wherein, the legal IP address mentioned above refers to an address assigned by a Network Information Center (NIC) or an Internet Service Provider (Internet Service Provider, ISP), which is a globally unified addressable address. The source IP address and destination IP address of the packet header are automatically modified by a device with NAT function (such as a router, etc.), and the private address is converted into a legal IP address, so that a LAN only needs to use a small number of legal IP addresses (even It is 1 IP address) to realize that all computers in the L...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L29/12
Inventor 包静
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD