CN101257517A - Method and device for processing address analysis protocol request message - Google Patents
Method and device for processing address analysis protocol request message Download PDFInfo
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- CN101257517A CN101257517A CNA200810089913XA CN200810089913A CN101257517A CN 101257517 A CN101257517 A CN 101257517A CN A200810089913X A CNA200810089913X A CN A200810089913XA CN 200810089913 A CN200810089913 A CN 200810089913A CN 101257517 A CN101257517 A CN 101257517A
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- address
- arp request
- user device
- protocol
- respond packet
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- 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
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
Abstract
The invention discloses a method of an address analysis protocol asking for message processing, comprising that: after receiving an address analysis protocol request packet from a sender, an address analysis response packet is configured according to the information in the address analysis protocol request packet, and a physical address at source end of the address analysis response packet is setup as a preset value; and the configured address analysis response packet is sent to the sender. Furthermore, the invention also discloses an apparatus of an address analysis protocol asking for message processing. The technical proposal in the invention can ensure the IP CS network stability and the data normal transmission; and the invention can be applied on various user equipments in WiMAX network or on the equipment with or without operating systems (such as linux operating system and windows operating system) with good universality.
Description
Technical field
The present invention relates to field of wireless communication, and especially, relate to a kind of arp request message treatment method and device.
Background technology
The same with most of agreements, the FDDI sublayer protocol of IEEE 802.16 (Medium Access Control, MAC) standard adopts hierarchy, and this agreement is divided into three sublayers: serve specific convergence sub-layer (Service Specific ConvergenceSublayer), common part sublayer (Common Part Sublayer) and Security Sublayer (Security Sublayer).The convergence sub-layer major function is to be responsible for the external data conversion that its access point (SAP) is received and to be mapped to Medium Access Control (MAC) Service Data Unit (SDU), and be delivered to MAC layer service access point (SAP), that is, connection-oriented public part service (MAC service) is mapped to the service of type.
In addition, the MAC protocol definition asynchronous transfer mode (Asynchronous TransferMode, ATM) two kinds of CS types of CS and Pocket CS, wherein Pocket CS provides 802.3 (Ethernets, Ethernet), 802.1Q (VLAN, VLAN) and IP (IPv4 IPv6) waits the professional mapping of grouping.
IP CS exchanges the IP bag between two network terminals.Have only on eating dishes without rice or wine IP bag be sent to micro-wave access global inter communication (Worldwide Interoperability for MicrowaveAccess, WiMAX) base station (Base Station, BS) on, other protocol package all can be dropped.For example, and network packet exchange (Internet work Packet Exchange, IPX), sequence of packets exchange (Sequences Pocket Exchange, SPX) bag.Fig. 1 is the message format schematic diagram of above-mentioned IP formatted data bag.
Generally speaking, the WiMAX subscriber equipment all can adopt the operating system that has network protocol stack to carry out the network relevant treatment, the WiMAX subscriber equipment becomes a network interface to the operating system registration, realizes the transmission and the reception of packet by the network protocol stack of operating system.Fig. 2 is the schematic diagram of network protocol stack and 802.16 systems in the operating system, as shown in Figure 2, in current operating system (for example, linux, windows) in, 802.16 network subsystems are thought a kind of 802.3 common ethernet devices, and carry out communication with 802.3 interface shapes and this 802.16 subsystem.Fig. 3 is the transmitting-receiving packet format of 802.3 Ethernet interfaces.In practical operation, the network protocol stack of operating system is transferred to the MAC layer of 802.16 subsystems and is handled after packet encapsulation is become as shown in Figure 3 Ethernet bag.
Can also see that from Fig. 3 data division also includes ARP(Address Resolution Protocol) request type (0806) in the Ethernet bag except IP datagram type (0800).ARP can be used to realize the dynamic translation of IP address to MAC address, utilizes ARP, can obtain the MAC Address of a certain IP address, and the ARP packet format as shown in Figure 4; By in network, sending the broadcast that has this packet format, can obtain the MAC Address of purpose IP address correspondence.
But in 802.16 systems, the MAC layer is connection-oriented, and each connection comes unique identification by an identifier CID (Connect ID), therefore, in the process of transfer of data, does not need to use MAC Address, does not therefore also just need the ARP agreement of Ethernet.This also is the reason that the IPv4CS in 802.16 systems does not handle the ARP bag.
Therefore, under this 802.16 system applies scenes, if the request of ARP is not handled or is abandoned, will make the ARP request of sending to obtain responding from the operating system network protocol stack, cause the failure of transmission flow, thereby may cause communication disruption, make the WiMAX subscriber equipment can't carry out normal voice or data communication, that is to say, have the problem that may cause to carry out normal call or go up net operation at present because the ARP request can't correctly be handled in IPv4 CS sublayer.Yet, the technical scheme that can address this problem is not proposed so far as yet.
Summary of the invention
Consider the problems referred to above and make the present invention that for this reason, main purpose of the present invention is to provide a kind of arp request message treatment method and device.To solve the problem that correctly to handle the ARP request in the correlation technique at IPv4 CS sublayer in 802.16 systems.
According to one embodiment of present invention, provide a kind of arp request message treatment method, the arp request message when being used for the employing IPv4 of 802.16 systems is handled.
This method comprises: behind the arp request bag that receives from transmit leg, according to the information structuring address resolution protocol respond packet in the address resolution protocol request package, and the source end physical address of address resolution protocol respond packet is set to predetermined value; The address resolution protocol respond packet of structure is sent to transmit leg.
Wherein, according to one of at least structure address resolution protocol respond packet in the following information in the address resolution protocol request package: the type of source address, source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
Preferably, can make amendment, with the source end physical address of amended user device address as the address resolution protocol respond packet to user device address.
Preferably, the mode of modification user device address can be for adding 1 with user device address.
Preferably, predetermined value meets the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
According to another embodiment of the present invention, also provide a kind of arp request message processing apparatus, the arp request message when being used for the employing IPv4 of 802.16 systems is handled.
This device comprises: receiver module is used to receive the arp request bag from transmit leg; Constructing module is used for the information structuring address resolution protocol respond packet according to the address resolution protocol request package, and the source end physical address of address resolution protocol respond packet is set to predetermined value; Sending module is used for the address resolution protocol respond packet of structure is sent to transmit leg.
Wherein, constructing module is according to one of at least structure address resolution protocol respond packet in the following information in the address resolution protocol request package: the type of source address, source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
Preferably, constructing module can be made amendment to user device address, with the source end physical address of amended user device address as the address resolution protocol respond packet.
Preferably, the mode of constructing module modification user device address can be for adding 1 with user device address.
Preferably, predetermined value meets the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
By technique scheme of the present invention, can guarantee the normal transmission of IP CS stability of network and data; And, can be applied on the various forms of subscriber equipmenies under the WiMAX network and have various operating systems equipment (for example, linux operating system, windows operating system) or that do not have operating system, have good versatility.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the message format of the IP formatted data bag of correlation technique;
Fig. 2 is the mutual schematic diagram according to network protocol stack in the operating system of correlation technique and 802.16 systems;
Fig. 3 is the schematic diagram according to the transmitting-receiving packet format of 802.3 Ethernet interfaces of correlation technique;
Fig. 4 is the ARP packet format schematic diagram according to correlation technique;
Fig. 5 is the flow chart according to the arp request message treatment method of the inventive method embodiment;
Fig. 6 is the flow chart according to the detailed process process of the arp request message treatment method of the inventive method embodiment;
Fig. 7 is the power on signaling process figure of access network of the WiMAX travelling carriage according to the inventive method embodiment; And
Fig. 8 is the block diagram according to the arp request message processing apparatus of apparatus of the present invention embodiment.
Embodiment
Method embodiment
Originally executing in the example, a kind of arp request message treatment method is provided, the arp request message when being used for the employing IPv4 of 802.16 systems is handled.Fig. 5 is the flow chart according to the arp request message treatment method of the embodiment of the invention.
As shown in Figure 5, arp request message treatment method according to the embodiment of the invention comprises: step S502, behind the arp request bag that receives from transmit leg, according to the information structuring address resolution protocol respond packet in the address resolution protocol request package, and the source end physical address of address resolution protocol respond packet is set to predetermined value; Step S504 sends to transmit leg with the address resolution protocol respond packet of constructing.
Wherein, according to one of at least structure address resolution protocol respond packet in the following information in the address resolution protocol request package: the type of source address, source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
Preferably, user device address is made amendment, with the source end physical address of amended user device address as the address resolution protocol respond packet.
That is to say,, can take a kind of so-called ARP deception mechanism to guarantee that transmitting terminal obtains correct response for the ARP request that enters in 802.16 subsystems.After data are sending in 802.16 systems, 802.16 IPv4 CS sublayer at first need to monitor receive packet format, if find that the bag that needs to send is the ARP request package, then with its intercepting and capturing, fill a certain MAC Address arbitrarily (as WiMAX subscriber equipment MAC Address+1) back and directly return the transmitting terminal network protocol stack, no longer continue to send to next step of 802.16 systems as arp reply.So just can guarantee that the ARP request that network protocol stack sends in time meets with a response, and can not influence the transmission of normal data.Thereby improve the stability of system.
In order to carry out this process, we need construct the arp response bag of an ethernet format, promptly, as shown in Figure 3, at first the Ethernet head to be set, comprise destination address, source address and type, wherein destination address and type, can obtain from the ARP request package, source address is filled with the address of WiMAX subscriber equipment.Next be to fill ARP field (as shown in Figure 4), this most contents wherein can obtain from the ARP request package, comprises type of hardware, protocol type, destination physical address, protocol address and source end protocol address etc.
Preferably, consider factors such as processing speed, the mode of revising user device address is for to add 1 (WiMAX subscriber equipment MAC Address+1) with user device address.It will be appreciated by those skilled in the art that it only is an example that the address is added 1, in the middle of practical application, can also otherwise make amendment, for example, the subscriber equipment MAC Address is added other value, deducts certain value.In a word, the subscriber equipment MAC Address as above-mentioned predetermined value should meet the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
That is to say, note the value of source end physical address, should choose a suitable value (above-mentioned predetermined value).The main foundation of choosing of this value is other MAC Address conflicts in the discord native system, and generally speaking, we select the MAC Address of WiMAX subscriber equipment to add 1.
The required field of arp response just can be called receiver function after filling and finishing, and 802.16 IPV4 CS sublayers send back to network protocol stack (Step504-508) with this arp response bag.
According to this mode, the network protocol stack of the operating system in the WiMAX subscriber equipment just can access correct arp response bag in time, and tabulates according to the ARP of content update oneself.
Fig. 6 is the flow chart according to preferred embodiment among the inventive method embodiment.Below, in conjunction with Fig. 6 the processing of technique scheme is described.As shown in Figure 6, specifically comprise following processing procedure:
Step 601-603, the packet that receives is detected in the IPv4 CS sublayer of 802.16 systems, judges whether it is the ARP request package;
Two kinds of situations are arranged here, and first kind of situation is to obtain from type field definition shown in Figure 2; Second kind of situation is not the ARP request package if IPv4 circuit domain (CS) sublayer detects the bag of sending, and then these IP bag data carried out next normal 802.16 and handles (step 610);
Step 604-608, if IPv4 CS sublayer detects the ARP bag that the bag type is really, then according to receiving bag structure arp response bag, target physical address wherein can be selected arbitrarily, utilizes the receiver function of operating system protocol stack by 802.3 interfaces it to be beamed back network protocol stack after the Ethernet head on adding.
To be example with the WiMAX mobile station MS process that opening initialization seeks network that powers on below, above-mentioned technical scheme will be elaborated.
Process need to prove hereto, and Fig. 7 is the power on general diagram of access network of MS, does not represent the complete access procedure of MS.For purpose clearly, only show the processing procedure of simplification here, it will be appreciated by those skilled in the art that instruction mutual between MS in the middle of the practical application and BS and process are than process complexity shown in Figure 7.
As shown in Figure 7, specifically may further comprise the steps:
Step 710-730, carry out physical layer synchronization, the MAC layer is synchronously and after the network insertion, at MS after DHCP (DHCP) server of BS side sends DHCP request IP address and successfully obtains, in order to verify whether connection is successful, MS has sent a ping instruction (step 750) to BS, when carrying out this ping instruction, whether MS at first inquires about in self the ARP tabulation is the MAC Address that this IP correspondence is arranged, if do not have, will send an ARP request, description according to the front, 802.16 the IP CS of system can not handle this ARP request, in this case, just must make deception to this ARP request and handle.
In this process, the ping instruction can not lead to errors because not obtaining correct target MAC (Media Access Control) address.Mentioned in front, 802.16 systems are connection-oriented systems, and its correct connection is not to rely on MAC Address, but by connection identifier (Connect ID, CID) be connected opening relationships, and obtain destination address and service quality (Quality of Serives, QoS) requirement from CID.The CID of MS is (step 730) that the RNG-RSP message of the ranging process from Fig. 7 is obtained.
Above-mentioned application example is concrete an application of ARP deception, in the network operation of reality, also has the instruction manipulations of the application that much needs to send the ARP request, to these operations, also all need to take the method for ARP deception, guarantee the normal of communication.
For 802.16 systems, need to prove that also such ARP deception can't influence the normal transmission of IP packet.From the narration of front, learn, the IP packet that need to send is when the network protocol stack of operating system enters 802.16 systems, need be in fields such as head adding purpose address, source address and types, be encapsulated into and be the Ethernet bag, and data are ultimately delivered to aerial the time when 802.16 systems, IP CS for 802.16, the form of its payload need to be reduced into into IP packet format again, no longer comprise the Ethernet head.Really carrying out not using fields such as destination address, source address when data transmit.Even, can not influence the normal transmission of data so destination address herein is to obtain next non-correct address by the ARP deception yet.
In the superincumbent narration, during the operating system that relates to, with linux operating system is example, in fact, having other operating systems (for example, in 802.16 systems windows), processing to the instruction of ARP request also is the same, be the interface implementation difference owing to the network layer protocol of each operating system, the interface function that calls when causing practical operation is difference to some extent, but its principle and operating process all are identical.
Device embodiment
In an embodiment, provide a kind of arp request message processing apparatus, the arp request message when being used for the employing IPv4 of 802.16 systems is handled.Fig. 8 is the arp request message processing apparatus block diagram according to present embodiment.
As shown in Figure 8, this device comprises: receiver module 802 is used to receive the arp request bag from transmit leg; Constructing module 804 is used for the information structuring address resolution protocol respond packet according to the address resolution protocol request package, and the source end physical address of address resolution protocol respond packet is set to predetermined value; Sending module 806 is used for the address resolution protocol respond packet of structure is sent to transmit leg.
Wherein, constructing module 804 is according to one of at least structure address resolution protocol respond packet in the following information in the address resolution protocol request package: the type of source address, source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
Preferably, constructing module 804 can be made amendment to user device address, with the source end physical address of amended user device address as the address resolution protocol respond packet.
Preferably, the mode of constructing module 804 modification user device address can be for adding 1 with user device address.
Preferably, predetermined value meets the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
In sum, by means of technical scheme of the present invention, can guarantee the normal transmission of IP CS stability of network and data; And, can be applied on the various forms of subscriber equipmenies under the WiMAX network and have various operating systems equipment (for example, linux operating system, windows operating system) or that do not have operating system, the present invention has good versatility; In addition, also the IP CS in 802.16 agreements has partly been carried out replenishing and perfect.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. arp request message treatment method, the arp request message when being used for that 802.16 systems are adopted IPv4 is handled, and it is characterized in that described method comprises:
Behind the arp request bag that receives from transmit leg, according to the information structuring address resolution protocol respond packet in the described arp request bag, and the source end physical address of described address resolution protocol respond packet is set to predetermined value;
The described address resolution protocol respond packet of structure is sent to described transmit leg.
2. method according to claim 1, it is characterized in that, according to the described address resolution protocol respond packet of one of at least structure in the following information in the described arp request bag: the type of source address, described source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
3. method according to claim 2 is characterized in that, described user device address is made amendment, with the source end physical address of amended user device address as described address resolution protocol respond packet.
4. method according to claim 3 is characterized in that the mode of revising described user device address is for to add 1 with described user device address.
5. method according to claim 1 is characterized in that, described predetermined value meets the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
6. arp request message processing apparatus, the arp request message when being used for that 802.16 systems are adopted IPv4 is handled, and it is characterized in that described device comprises:
Receiver module is used to receive the arp request bag from transmit leg;
Constructing module is used for the information structuring address resolution protocol respond packet according to described arp request bag, and the source end physical address of described address resolution protocol respond packet is set to predetermined value;
Sending module is used for the described address resolution protocol respond packet of structure is sent to described transmit leg.
7. device according to claim 6, it is characterized in that described constructing module is according to the described address resolution protocol respond packet of one of at least structure in the following information in the described arp request bag: the type of source address, described source address, user device address, type of hardware, protocol type, protocol address, source protocol address.
8. device according to claim 7 is characterized in that described constructing module is made amendment to described user device address, with the source end physical address of amended user device address as described address resolution protocol respond packet.
9. device according to claim 8 is characterized in that, described constructing module is revised the mode of described user device address for described user device address is added 1.
10. device according to claim 6 is characterized in that, described predetermined value meets the following conditions: do not exist with other Media Access Control Address in the native system and conflict.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810089913XA CN101257517B (en) | 2008-04-09 | 2008-04-09 | Method and device for processing address analysis protocol request message |
| PCT/CN2008/073789 WO2009124444A1 (en) | 2008-04-09 | 2008-12-26 | Method and apparatus for processing the arp request message |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810089913XA CN101257517B (en) | 2008-04-09 | 2008-04-09 | Method and device for processing address analysis protocol request message |
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| Publication Number | Publication Date |
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| CN101257517A true CN101257517A (en) | 2008-09-03 |
| CN101257517B CN101257517B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810089913XA Expired - Fee Related CN101257517B (en) | 2008-04-09 | 2008-04-09 | Method and device for processing address analysis protocol request message |
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| CN (1) | CN101257517B (en) |
| WO (1) | WO2009124444A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124444A1 (en) * | 2008-04-09 | 2009-10-15 | 中兴通讯股份有限公司 | Method and apparatus for processing the arp request message |
| CN103314561A (en) * | 2010-12-11 | 2013-09-18 | 惠普发展公司，有限责任合伙企业 | Computer network node discovery |
| CN107995322A (en) * | 2017-11-24 | 2018-05-04 | 上海市共进通信技术有限公司 | Method by sending instructions under ARP messages |
| CN108881425A (en) * | 2018-06-07 | 2018-11-23 | 中国科学技术大学 | A kind of data package processing method and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9455948B2 (en) * | 2012-06-29 | 2016-09-27 | Cisco Technology, Inc. | Reducing proliferation of network-to-link-layer address resolution messages |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060015635A1 (en) * | 2004-06-17 | 2006-01-19 | International Business Machines Corporation | Method and apparatus for handling address resolution protocol requests for a device having multiple interfaces |
| CN100563245C (en) * | 2005-04-27 | 2009-11-25 | 华为技术有限公司 | A kind of prevention method at the ARP overflowing attack |
| CN1946041B (en) * | 2006-06-20 | 2010-08-18 | 杭州华三通信技术有限公司 | VLAN polymerizing method, converging exchanger and system based on ARP detector intercept |
| CN100536474C (en) * | 2006-09-14 | 2009-09-02 | 杭州华三通信技术有限公司 | Method and equipment for preventing network attack by using address analytic protocol |
| CN101257517B (en) * | 2008-04-09 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for processing address analysis protocol request message |
-
2008
- 2008-04-09 CN CN200810089913XA patent/CN101257517B/en not_active Expired - Fee Related
- 2008-12-26 WO PCT/CN2008/073789 patent/WO2009124444A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124444A1 (en) * | 2008-04-09 | 2009-10-15 | 中兴通讯股份有限公司 | Method and apparatus for processing the arp request message |
| CN103314561A (en) * | 2010-12-11 | 2013-09-18 | 惠普发展公司，有限责任合伙企业 | Computer network node discovery |
| CN107995322A (en) * | 2017-11-24 | 2018-05-04 | 上海市共进通信技术有限公司 | Method by sending instructions under ARP messages |
| CN108881425A (en) * | 2018-06-07 | 2018-11-23 | 中国科学技术大学 | A kind of data package processing method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101257517B (en) | 2012-05-09 |
| WO2009124444A1 (en) | 2009-10-15 |
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