CN113794608A - NAT tester and testing method for automatically testing forwarding of SCTP message by NAT equipment - Google Patents

NAT tester and testing method for automatically testing forwarding of SCTP message by NAT equipment Download PDF

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Publication number
CN113794608A
CN113794608A CN202111216457.2A CN202111216457A CN113794608A CN 113794608 A CN113794608 A CN 113794608A CN 202111216457 A CN202111216457 A CN 202111216457A CN 113794608 A CN113794608 A CN 113794608A
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nat
message
tester
sctp
equipment
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CN202111216457.2A
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CN113794608B (en
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肖娟
范渊
吴永越
郑学新
刘韬
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Chengdu DBAPPSecurity Co Ltd
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Chengdu DBAPPSecurity Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements
    • 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
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/2557—Translation policies or rules
    • 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
    • H04L69/22—Parsing or analysis of headers

Abstract

The invention provides an NAT tester for automatically testing the forwarding of SCTP messages by NAT equipment and a testing method for automatically testing the forwarding of SCTP messages by NAT equipment, which not only support the traditional TCP/UDP message sending, but also increase the structure of a SCTP protocol data packet so as to solve the problem of connection failure when both parties declare a plurality of IP addresses to inform all addresses of the other party's home terminal when connection is established; the method meets the requirements of more diversified scenes, fills up the short boards which cannot send the sctp type messages in the NAT equipment test, and supports the test of various NAT test scenes.

Description

NAT tester and testing method for automatically testing forwarding of SCTP message by NAT equipment
Technical Field
The invention belongs to the technical field of NAT equipment testing, and particularly relates to a NAT tester and a testing method for automatically testing forwarding of SCTP messages by NAT equipment.
Background
At present, most of NAT tests mainly use TCP/UDP protocol and other construction data packet verification, which cannot meet diversified use scenes, and in the NAT test process, if two communication parties declare a plurality of IP addresses to inform all addresses of the local terminal of the other party when establishing connection, if the current connection fails, the connection can only be established again through the TCP protocol, so that the problem of low reaction speed exists.
Disclosure of Invention
The invention aims to provide a NAT tester for automatically testing forwarding of SCTP messages by NAT equipment, and a testing method for automatically testing forwarding of SCTP messages by NAT equipment, so that efficient testing of the NAT equipment is realized.
The invention is realized by the following technical scheme:
the NAT tester and the testing method for automatically testing the forwarding of the SCTP message by the NAT equipment are realized based on the NAT testing instrument, and a corresponding testing mode is selected in the NAT testing instrument aiming at the function of the NAT equipment to be tested, and the method also comprises the following steps:
step 1, the NAT tester constructs SCTP messages according to the test mode and sends the constructed SCTP messages to NAT equipment;
step 2, configuring an NAT strategy on NAT equipment, and carrying out configuration conversion on the received SCTP message by the NAT equipment according to the configured NAT strategy to obtain a conversion message;
step 3, the NAT equipment generates a strategy configuration file according to the configured NAT strategy and sends the strategy configuration file to the NAT tester, and the NAT tester generates an expected message according to the strategy configuration file and the SCTP message;
and 4, the NAT equipment sends the conversion message to the NAT tester, and the NAT tester calls an assertion function to compare and verify the conversion message and the expected message so as to judge whether the conversion message and the expected message are consistent or not, and then the NAT equipment is tested.
In order to better implement the present invention, the step 4 of comparing and verifying the converted packet with the expected packet specifically includes the following steps:
step A1, detecting whether the quantity of SCTP messages sent by the NAT tester to the NAT equipment is consistent with the quantity of conversion messages sent by the NAT equipment to the NAT tester; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be not equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, the NAT tester directly returns an error prompt that the quantity of the data packets is not consistent; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, entering the step A2;
step A2, detecting a source IP and a target IP of a conversion message received by the NAT tester, detecting a source IP and a target IP of an expected message generated by the NAT tester through the SCTP message, comparing the source IP of the conversion message with the source IP of the expected message, and comparing the target IP of the conversion message with the target IP of the expected message; if the source IP of the converted message is consistent with the source IP of the expected message and the target IP of the converted message is consistent with the target IP of the expected message, the NAT equipment passes the test; if the source IP of the conversion message does not accord with the source IP of the expected message or the target IP of the conversion message does not accord with the target IP of the expected message, the test of the NAT equipment fails.
In order to better implement the present invention, further, before performing the comparison verification between the conversion message and the expected message in step 4, the NAT tester needs to perform hit detection on the NAT device, and if the NAT device is hit, the NAT tester calls an assertion function to perform the comparison verification between the conversion message and the expected message; and if the NAT equipment is not hit, an error is reported through the NAT tester.
In order to better implement the present invention, further, the performing hit detection on the NAT device by the NAT tester specifically performs message reception timeout detection on the NAT device by the NAT tester, and if the NAT tester detects that the NAT device does not receive the SCTP message after exceeding the reception time, the NAT device is not hit; if the NAT tester detects that the NAT equipment receives the SCTP message within the receiving time, the NAT equipment is hit.
For better implementation of the present invention, further, the receiving time is 1s to 1.5 s.
In order to better implement the present invention, further, in step 1, the constructing the SCTP packet by the NAT tester specifically includes the following steps:
step 1.1, the NAT tester calls a python scapy module, and an Ethernet layer is constructed through the mac address of a source host and the mac address of a destination host in the SCTP message;
step 1.2, the NAT tester calls a python scapy module, and an IP layer is constructed through a source IP and a target IP in the SCTP message;
step 1.3, the NAT tester calls a python scapy module, and a transmission layer is constructed through a source port, a destination port and a tag in the SCTP message;
and step 1.4, combining the Ethernet layer, the IP layer and the transmission layer into an SCTP message by the NAT tester.
In order to better implement the present invention, further, if the NAT tester fails to test the NAT device, the NAT tester establishes a virtual environment, repeats the test operations in steps 1 to 4 in the virtual environment until the test failure occurs again, and records the corresponding test operation when the test failure occurs.
In order to better implement the present invention, further, the NAT tester establishes a virtual environment through python environment.
The NAT tester automatically testing the forwarding of the SCTP message by the NAT equipment comprises a data packet construction module, a data packet receiving and verifying module and a test mode selecting module, wherein the data packet construction module is used for constructing the SCTP message and an expected message and is connected with the NAT equipment through an intranet interface; the data packet receiving and verifying module is used for receiving a conversion message from the NAT equipment and an expected message from the data packet constructing module, comparing and verifying the conversion message and the expected message, and is connected with the NAT equipment through an external network interface; the test mode selection module is used for setting a test mode.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention provides an NAT tester, which not only supports the traditional TCP/UDP message transmission, but also increases the structure of a sctp protocol data packet so as to solve the problem of connection failure when both parties declare a plurality of IP addresses to inform all the addresses of the home terminal of the other party when connection is established;
(2) the invention meets the requirements of more diversified scenes, supplements the short board which can not send the sctp type message in the NAT equipment test, and supports the test of various NAT test scenes;
(3) when the NAT equipment fails to be tested, the virtual environment is generated, and the testing steps are repeated in the virtual environment to restore the error scene, so that the subsequent test is not influenced, and the influence of the subsequent test on the reproduction problem is prevented.
Drawings
FIG. 1 is a schematic overall flow diagram of the present invention;
FIG. 2 is a flow chart illustrating test error localization and reproduction.
Detailed Description
Example 1:
as shown in fig. 1, the NAT tester and the testing method for automatically testing forwarding of an SCTP packet by a NAT device according to the present embodiment are implemented based on a NAT testing instrument, and select a corresponding testing mode in the NAT testing instrument according to a function of a NAT device to be tested, where the testing method further includes the following steps:
step 1, the NAT tester constructs SCTP messages according to the test mode and sends the constructed SCTP messages to NAT equipment; the SCTP message includes parameters such as source port, destination port, message quantity, etc
Step 2, configuring an NAT strategy on NAT equipment, and carrying out configuration conversion on the received SCTP message by the NAT equipment according to the configured NAT strategy to obtain a conversion message; for example: configuring a source NAT strategy, wherein if the address after the conversion is the address of an output interface on NAT equipment, the NAT tester can self-determine to generate an SCTP message, the source IP of the SCTP message is the IP of the output interface after the conversion, and the target IP is unchanged; meanwhile, whether a source port and a destination port are configured or not is checked, and if so, the source port is converted.
Step 3, the NAT equipment generates a strategy configuration file according to the configured NAT strategy and sends the strategy configuration file to the NAT tester, and the NAT tester generates an expected message according to the strategy configuration file and the SCTP message;
and 4, the NAT equipment sends the conversion message to the NAT tester, and the NAT tester calls an assertion function to compare and verify the conversion message and the expected message so as to judge whether the conversion message and the expected message are consistent or not, and then the NAT equipment is tested. If the conversion message is in accordance with the expected message, the test is successful, and if the conversion message is not in accordance with the expected message, the test is failed.
Example 2:
in this embodiment, a further optimization is performed on the basis of embodiment 1, and the comparing and verifying the converted packet and the expected packet in step 4 specifically includes the following steps:
step A1, detecting whether the quantity of SCTP messages sent by the NAT tester to the NAT equipment is consistent with the quantity of conversion messages sent by the NAT equipment to the NAT tester; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be not equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, the NAT tester directly returns an error prompt that the quantity of the data packets is not consistent; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, entering the step A2;
step A2, detecting a source IP and a target IP of a conversion message received by the NAT tester, detecting a source IP and a target IP of an expected message generated by the NAT tester through the SCTP message, comparing the source IP of the conversion message with the source IP of the expected message, and comparing the target IP of the conversion message with the target IP of the expected message; if the source IP of the converted message is consistent with the source IP of the expected message and the target IP of the converted message is consistent with the target IP of the expected message, the NAT equipment passes the test; if the source IP of the conversion message does not accord with the source IP of the expected message or the target IP of the conversion message does not accord with the target IP of the expected message, the test of the NAT equipment fails.
Further, before the comparison and verification of the conversion message and the expected message in the step 4, hit detection needs to be performed on the NAT device by the NAT tester, and if the NAT device is hit, the NAT tester calls an assertion function to perform comparison and verification on the conversion message and the expected message; and if the NAT equipment is not hit, an error is reported through the NAT tester.
Further, the performing of hit detection on the NAT device by the NAT tester specifically includes performing message reception timeout detection on the NAT device by the NAT tester, and if the NAT tester detects that the NAT device does not receive the SCTP message after the reception time is exceeded, the NAT device is not hit; if the NAT tester detects that the NAT equipment receives the SCTP message within the receiving time, the NAT equipment is hit.
Further, the receiving time is 1s-1.5 s.
Hit detection is carried out by carrying out NAT equipment in advance, and errors are directly reported for the NAT equipment which is not hit, so that the subsequent message conversion is not carried out; only aiming at the hit message, the subsequent message conversion is carried out, and the efficiency of message conversion and subsequent message verification is greatly improved.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 3:
this embodiment is further optimized on the basis of the foregoing embodiment 1 or 2, where in the step 1, constructing the SCTP packet by using the NAT tester specifically includes the following steps:
step 1.1, the NAT tester calls a python scapy module, and an Ethernet layer is constructed through the mac address of a source host and the mac address of a destination host in the SCTP message;
step 1.2, the NAT tester calls a python scapy module, and an IP layer is constructed through a source IP and a target IP in the SCTP message;
step 1.3, the NAT tester calls a python scapy module, and a transmission layer is constructed through a source port, a destination port and a tag in the SCTP message;
and step 1.4, combining the Ethernet layer, the IP layer and the transmission layer into an SCTP message by the NAT tester.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
the present embodiment is further optimized on the basis of any one of the foregoing embodiments 1 to 3, and if the NAT tester fails to test the NAT device, the NAT tester establishes a virtual environment, repeats the test operations in steps 1 to 4 in the virtual environment until the test failure occurs again, and records the corresponding test operation when the test failure occurs.
Further, the NAT tester establishes a virtual environment through python environment.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
the NAT tester for automatically testing the forwarding of the SCTP message by the NAT equipment is used for realizing the testing method for automatically testing the forwarding of the SCTP message by the NAT equipment in any embodiment 1-4, and comprises a data packet construction module, a data packet receiving and verifying module and a testing mode selecting module, wherein the data packet construction module is used for constructing the SCTP message and an expected message and is connected with the NAT equipment through an intranet interface; the data packet receiving and verifying module is used for receiving a conversion message from the NAT equipment and an expected message from the data packet constructing module, comparing and verifying the conversion message and the expected message, and is connected with the NAT equipment through an external network interface; the test mode selection module is used for setting a test mode.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims (9)

1. A testing method for automatically testing forwarding of SCTP messages by NAT equipment is realized based on an NAT testing instrument, and a corresponding testing mode is selected in the NAT testing instrument aiming at the function of the NAT equipment to be tested, and the testing method is characterized by also comprising the following steps:
step 1, the NAT tester constructs SCTP messages according to the test mode and sends the constructed SCTP messages to NAT equipment;
step 2, configuring an NAT strategy on NAT equipment, and carrying out configuration conversion on the received SCTP message by the NAT equipment according to the configured NAT strategy to obtain a conversion message;
step 3, the NAT equipment generates a strategy configuration file according to the configured NAT strategy and sends the strategy configuration file to the NAT tester, and the NAT tester generates an expected message according to the strategy configuration file and the SCTP message;
and 4, the NAT equipment sends the conversion message to the NAT tester, and the NAT tester calls an assertion function to compare and verify the conversion message and the expected message so as to judge whether the conversion message and the expected message are consistent or not, and then the NAT equipment is tested.
2. The method for automatically testing forwarding of the SCTP packet by the NAT device according to claim 1, wherein the comparing and verifying the converted packet with the expected packet in the step 4 specifically includes the following steps:
step A1, detecting whether the quantity of SCTP messages sent by the NAT tester to the NAT equipment is consistent with the quantity of conversion messages sent by the NAT equipment to the NAT tester; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be not equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, the NAT tester directly returns an error prompt that the quantity of the data packets is not consistent; if the quantity of the SCTP messages sent to the NAT equipment by the NAT tester is detected to be equal to the quantity of the conversion messages sent to the NAT tester by the NAT equipment, entering the step A2;
step A2, detecting a source IP and a target IP of a conversion message received by the NAT tester, detecting a source IP and a target IP of an expected message generated by the NAT tester through the SCTP message, comparing the source IP of the conversion message with the source IP of the expected message, and comparing the target IP of the conversion message with the target IP of the expected message; if the source IP of the converted message is consistent with the source IP of the expected message and the target IP of the converted message is consistent with the target IP of the expected message, the NAT equipment passes the test; if the source IP of the conversion message does not accord with the source IP of the expected message or the target IP of the conversion message does not accord with the target IP of the expected message, the test of the NAT equipment fails.
3. The method according to claim 2, wherein before the verification of the conversion packet and the expected packet in step 4, the NAT tester needs to perform hit detection on the NAT device, and if the NAT device is hit, the NAT tester calls an assertion function to perform verification of the conversion packet and the expected packet; and if the NAT equipment is not hit, an error is reported through the NAT tester.
4. The method according to claim 3, wherein the detecting of the hit of the NAT device by the NAT tester is specifically detecting the message reception timeout of the NAT device by the NAT tester, and if the NAT tester detects that the NAT device does not receive the SCTP message after the reception time is exceeded, the NAT device is not hit; if the NAT tester detects that the NAT equipment receives the SCTP message within the receiving time, the NAT equipment is hit.
5. The method for automatically testing the forwarding of the SCTP message by the NAT device according to claim 4, wherein the receiving time is 1s-1.5 s.
6. The method for automatically testing the forwarding of the SCTP packet by the NAT device according to any one of claims 1 to 5, wherein the step 1 of constructing the SCTP packet by the NAT tester specifically includes the steps of:
step 1.1, the NAT tester calls a python scapy module, and an Ethernet layer is constructed through the mac address of a source host and the mac address of a destination host in the SCTP message;
step 1.2, the NAT tester calls a python scapy module, and an IP layer is constructed through a source IP and a target IP in the SCTP message;
step 1.3, the NAT tester calls a python scapy module, and a transmission layer is constructed through a source port, a destination port and a tag in the SCTP message;
and step 1.4, combining the Ethernet layer, the IP layer and the transmission layer into an SCTP message by the NAT tester.
7. The method for automatically testing the forwarding of the SCTP message by the NAT device according to any one of claims 1-5, wherein if the NAT device fails to test the NAT device, the NAT device establishes a virtual environment, the testing operations in steps 1-4 are repeated in the virtual environment until the testing failure occurs again, and the corresponding testing operation is recorded when the testing failure occurs.
8. The method for automatically testing the forwarding of the SCTP message by the NAT device according to claim 7, wherein the NAT tester establishes a virtual environment through python environment.
9. The NAT tester for automatically testing the NAT equipment to forward the SCTP message is used for realizing the method for automatically testing the NAT equipment to forward the SCTP message according to any one of claims 1-8, and is characterized in that the NAT tester comprises a data packet construction module, a data packet receiving and verifying module and a test mode selection module, wherein the data packet construction module is used for constructing the SCTP message and an expected message and is connected with the NAT equipment through an intranet interface; the data packet receiving and verifying module is used for receiving a conversion message from the NAT equipment and an expected message from the data packet constructing module, comparing and verifying the conversion message and the expected message, and is connected with the NAT equipment through an external network interface; the test mode selection module is used for setting a test mode.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007088770A (en) * 2005-09-21 2007-04-05 Mitsubishi Electric Corp Self-diagnostic system of address conversion device
CN106713523A (en) * 2016-12-16 2017-05-24 无锡华云数据技术服务有限公司 SCTP-based network address conversion method
CN108183838A (en) * 2017-12-25 2018-06-19 杭州迪普科技股份有限公司 The method and device of one introduces a collection nat feature test
CN109756401A (en) * 2019-03-25 2019-05-14 新华三信息安全技术有限公司 A kind of test method, device, electronic equipment and storage medium
CN112565001A (en) * 2020-11-18 2021-03-26 浪潮思科网络科技有限公司 NAT equipment performance test system, method, equipment and medium

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007088770A (en) * 2005-09-21 2007-04-05 Mitsubishi Electric Corp Self-diagnostic system of address conversion device
CN106713523A (en) * 2016-12-16 2017-05-24 无锡华云数据技术服务有限公司 SCTP-based network address conversion method
CN108183838A (en) * 2017-12-25 2018-06-19 杭州迪普科技股份有限公司 The method and device of one introduces a collection nat feature test
CN109756401A (en) * 2019-03-25 2019-05-14 新华三信息安全技术有限公司 A kind of test method, device, electronic equipment and storage medium
CN112565001A (en) * 2020-11-18 2021-03-26 浪潮思科网络科技有限公司 NAT equipment performance test system, method, equipment and medium

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