CN103312708B - A kind of IP establishing method based on lease file and system - Google Patents
A kind of IP establishing method based on lease file and system Download PDFInfo
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- CN103312708B CN103312708B CN201310225675.1A CN201310225675A CN103312708B CN 103312708 B CN103312708 B CN 103312708B CN 201310225675 A CN201310225675 A CN 201310225675A CN 103312708 B CN103312708 B CN 103312708B
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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
- H04L61/50—Address allocation
- H04L61/5053—Lease time; Renewal aspects
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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
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention discloses a kind of IP establishing method based on lease file, comprising: S1, judge whether successfully to open the lease file corresponding with focus MAC address; S2, when successfully opening, send DHCP? request asks information to corresponding DHCP service device to obtain lease IP; Do S3, DHCP service device receive DHCP? after request request information, before judging, whether primary distribution IP address can be used, if, primary distribution IP address before making DHCP client use, and reply DHCP? ACK confirmation is to DHCP client; Do you S4, judge that DHCP client receives DHCP? ACK confirmation; S5, when judgement DHCP client receive DHCP? during ACK confirmation, upgrade the lease file that described focus MAC address is corresponding. The present invention also discloses a kind of IP initialization system based on lease file.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of IP establishing method based on lease file and system.
Background technology
The terminal carrying out WiFi cableless communication when DHCP client such as, before WiFi-POS does data trade, first needs by WiFi interconnection network before doing data communication, and current main flow is the dynamic acquisition realizing IP based on Dhcpcd service.
Traditional realizes in IP dynamic acquisition method based on Dhcpcd service, according to lease file, when re-renting IP, cannot ensure that lease file is the current focus mandate connected, IP may being caused to re-rent failure, and again initiate DHCP and find flow process, namely DHCP client resends DHCPdiscover and finds that information comes the IP address that please look for novelty, this process extends the time obtaining IP, reduces Consumer's Experience.
Summary of the invention
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is:
A kind of IP establishing method based on lease file is provided, comprise: S1, startup Dhcpcd service, obtain the focus MAC address that network interface card title is corresponding, judge whether successfully to open the lease file corresponding with focus MAC address, wherein, this lease file comprises network interface card title, focus MAC address and the front primary distribution IP address information corresponding with focus MAC address; S2, when judging successfully to open lease file corresponding to MAC address, sending DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, this DHCPrequest asks primary distribution IP address information before information; After S3, DHCP service device receive described DHCPrequest request information, before judging, whether primary distribution IP address can be used, if, primary distribution IP address before making DHCP client use, and reply DHCPACK confirmation to DHCP client; S4, judge DHCP client and whether receive DHCPACK confirmation; S5, when judge DHCP client receive DHCPACK confirmation time, upgrade the lease file that described focus MAC address is corresponding.
Wherein, described a kind of IP establishing method based on lease file also comprises step: S6, when judging that DHCP client is unsuccessful and open the lease file corresponding with focus MAC address or do not receive DHCPACK confirmation, sends and comprises the DHCP service device of broadcast information looking for novelty that DHCPdiscover finds information; S7, after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time; S8, after DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected server, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode; S9, after this selected DHCP service device receives described DHCPrequest request information, sending one to DHCP client and comprise lease IP and other DHCPACK confirmations arranged, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time; S10, after DHCP client receives DHCPACK confirmation, lease IP and network interface card title are bound, the front primary distribution IP address in lease file is updated to described lease IP simultaneously.
Another technical solution used in the present invention is:
A kind of IP initialization system based on lease file is provided, comprise: lease file polling unit, for starting Dhcpcd service, obtain the focus MAC address that network interface card title is corresponding, judge whether successfully to open the lease file corresponding with focus MAC address, wherein, this lease file comprises the front primary distribution IP address information corresponding with focus MAC address; Request unit, for when described lease file polling unit judges successfully to open lease file corresponding to MAC address, send DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, primary distribution IP address information before this DHCPrequest request information; First identifying unit, for, after DHCP service device receives described DHCPrequest request information, before judging, whether primary distribution IP address can be used; First confirmation unit, for when primary distribution IP address is available before described first identifying unit judges, making DHCP client use front primary distribution IP address, and reply DHCPACK confirmation to DHCP client; 2nd identifying unit, for judging whether DHCP client receives DHCPACK confirmation; First lease file update unit, for when described 2nd identifying unit judges that DHCP client receives DHCPACK confirmation, upgrading the lease file that described focus MAC address is corresponding.
Wherein, described a kind of IP initialization system based on lease file also comprises: find unit, for when lease file polling unit judge unsuccessful open lease file corresponding to focus MAC address time or the 2nd identifying unit judge that DHCP client does not receive DHCPACK confirmation time, send and comprise DHCPdiscover and find the DHCP service device of the broadcast information of information looking for novelty; IP address providing unit, for after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time; Server selectes unit, for when DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected DHCP service device, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode; 2nd confirmation unit, after receiving described DHCPrequest request information when this selected DHCP service device, sends one to DHCP client and comprises lease IP and other DHCPACK confirmations arranged; 2nd lease file update unit, for, after DHCP client receives DHCPACK confirmation, binding lease IP and network interface card title, the front primary distribution IP address in lease file be updated to described lease IP simultaneously.
A kind of IP establishing method based on lease file of the present invention and system, for each focus MAC address of successful connection stores with the lease file of focus MAC address name, when starting Dhcpcd and serve, open the lease file corresponding to focus MAC address, send DHCPrequest according to front primary distribution IP address and ask information to corresponding DHCP service device to obtain lease IP; If lease file open failed or do not receive the DHCPACK confirmation that DHCP service device sends, then send DHCPdiscover and find that information carrys out the lease IP that please look for novelty. Message is sent to the Dhcpcd server of correspondence by the present invention based on lease file, only received less than DHCPACK confirmation when the IP of application has taken Shi Caihui, if therefore the focus of switching once had successful connection, the time sending DHCPdiscover and receiving DHCPoffer will be reduced, improve the success ratio of renewed treaty IP, thus shorten IP and obtain the time.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of a kind of IP initialization system based on lease file in an embodiment of the present invention;
Fig. 2 is the structure block diagram of loading system under a kind of key in an embodiment of the present invention;
Main element nomenclature
Lease file polling unit 11; Request unit 12;
First identifying unit 13; First confirmation unit 14; 2nd identifying unit 15;
First lease file update unit 16; Find unit 17; IP address providing unit 18;
Server selectes unit 19; 2nd confirmation unit 20; 2nd lease file update unit 21.
Embodiment
By technology contents, the structural attitude of the present invention being described in detail, is realized object and effect, below in conjunction with enforcement mode and coordinate accompanying drawing to be explained in detail.
MAC (Medium/MediaAccessControl) address, or it is called MAC address, physical address, it is used for representing the identifier of each website on internet, adopts sexadecimal number to represent, totally six bytes (48). Wherein, first three byte is responsible for the code (high-order 24) of different manufacturers distribution by the registration administration RA of IEEE, also referred to as " in establishment unique identifier " (OrganizationallyUniqueIdentifier), rear three bytes (24, low position) are assigned to the adaptor interface of production voluntarily by each producer, are called extended identifier (uniqueness). An address block can generate 224Individual different address. In fact MAC address is exactly adapter address or adapter identifier EUI-48.
Refer to Fig. 1, it is the structure block diagram of a kind of IP initialization system based on lease file in an embodiment of the present invention. Lease file polling unit 11, request unit 12, first identifying unit 13, first confirmation unit 14, the 2nd identifying unit 15, first lease file update unit 16 should be comprised based on the IP initialization system of lease file.
Described lease file polling unit 11 is for starting Dhcpcd service, obtain the focus MAC address that network interface card title is corresponding, judge whether successfully to open the lease file corresponding with focus MAC address, wherein, this lease file comprises network interface card title, focus MAC address and the front primary distribution IP address information corresponding with focus MAC address. Described lease file is named with the focus MAC address corresponding with it in the present embodiment. Dhcpcd be one can running background can steering routine, directly call and can start service. Before starting dhcpcd and serving, wireless network card and focus connect, and by obtaining the hot information of wireless network card names associate, obtain focus MAC address.
Described request unit 12 is for when described lease file polling unit 11 judges successfully to open lease file corresponding to focus MAC address, send DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, primary distribution IP address information before this DHCPrequest request information.
Described first identifying unit 13 is for, after DHCP service device receives described DHCPrequest request information, before judging, whether primary distribution IP address can be used.
Described first confirmation unit 14 is for when described first judges that Unit 13 judge that front primary distribution IP address is available, making DHCP client use front primary distribution IP address, and reply DHCPACK confirmation to DHCP client.
Described 2nd identifying unit 15 is for judging whether DHCP client receives DHCPACK confirmation.
Described first lease file update unit 16 is for when described 2nd identifying unit 15 judges that DHCP client receives DHCPACK confirmation, upgrading the lease file that described focus MAC address is corresponding.
The described IP initialization system based on lease file also comprises discovery unit 17, IP address providing unit 18, server selected unit 19, the 2nd confirmation unit 20, the 2nd lease file update unit 21.
Described discovery unit 17 for when lease file polling unit 11 judge unsuccessful open lease file corresponding to focus MAC address time or described 2nd identifying unit 15 judge that DHCP client does not receive DHCPACK confirmation time, send and comprise DHCPdiscover and find the DHCP service device of the broadcast information of information looking for novelty. DHCPdiscover finds that the Target IP of information is the broadcast address of 255.255.255.255, and the DHCP service device of physical connection can receive DHCPdiscover and find information.
Described IP address providing unit 18 is for after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time etc.
The selected unit 19 of described server is for when DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected DHCP service device, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode.
Described 2nd confirmation unit 20 is for after receiving described DHCPrequest request information when this selected DHCP service device, sending one to DHCP client and comprise lease IP and other DHCPACK confirmations arranged, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time etc.
Described 2nd lease file update unit 21 is for, after DHCP client receives DHCPACK confirmation, binding lease IP and network interface card title, the front primary distribution IP address in lease file is updated to described lease IP simultaneously.
Refer to Fig. 2, it is the flowchart of a kind of IP establishing method based on lease file in an embodiment of the present invention. Running in the described IP initialization system based on lease file, described a kind of IP establishing method based on lease file comprises:
Step S1, startup Dhcpcd service, obtain the focus MAC address that network interface card title is corresponding, judge whether to there is the lease file corresponding with focus MAC address, wherein, this lease file comprises network interface card title, focus MAC address and the front primary distribution IP address information corresponding with focus MAC address;
Step S2, when judging successfully to open lease file corresponding to focus MAC address, sending DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, this DHCPrequest asks primary distribution IP address information before information;
After step S3, DHCP service device receive described DHCPrequest request information, before judging, whether primary distribution IP address can be used, if, primary distribution IP address before making DHCP client use, and reply DHCPACK confirmation to DHCP client;
Step S4, judge DHCP client and whether receive DHCPACK confirmation;
Step S5, when unsuccessful open the lease file corresponding with focus MAC address or judge DHCP client receive DHCPACK confirmation time, upgrade the lease file that described focus MAC address is corresponding;
Wherein, described a kind of IP establishing method based on lease file also comprises step:
Step S6, when judging that DHCP client does not receive DHCPACK confirmation, send and comprise the DHCP service device of broadcast information looking for novelty that DHCPdiscover finds information;
Step S7, after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
Step S8, after DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected server, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode;
Step S9, after this selected DHCP service device receives described DHCPrequest request information, sending one to DHCP client and comprise lease IP and other DHCPACK confirmations arranged, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
Step S10, after DHCP client receives DHCPACK confirmation, lease IP and network interface card title are bound, the front primary distribution IP address in lease file is updated to described lease IP simultaneously.
The IP establishing method based on lease file of the present invention and system, for each focus MAC address of successful connection stores with the lease file of focus MAC address name, when starting Dhcpcd and serve, open the lease file corresponding to focus MAC address, send DHCPrequest according to front primary distribution IP address and ask information to corresponding DHCP service device to obtain lease IP; If lease file open failed or do not receive the DHCPACK confirmation that DHCP service device sends, then send DHCPdiscover and find that information carrys out the lease IP that please look for novelty. Message is sent to the Dhcpcd server of correspondence by the present invention based on lease file, only received less than DHCPACK confirmation when the IP of application has taken Shi Caihui, if therefore the focus of switching once had successful connection, the time sending DHCPdiscover and receiving DHCPoffer will be reduced, improve the success ratio of renewed treaty IP, thus shorten IP and obtain the time
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.
Claims (2)
1. the IP establishing method based on lease file, it is characterised in that, comprising:
S1, startup Dhcpcd service, obtain the focus MAC address that network interface card title is corresponding, judge whether successfully to open the lease file corresponding with focus MAC address, wherein, this lease file comprises network interface card title, focus MAC address and the front primary distribution IP address information corresponding with focus MAC address;
S2, when judging successfully to open lease file corresponding to focus MAC address, sending DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, this DHCPrequest asks primary distribution IP address information before information;
After S3, DHCP service device receive described DHCPrequest request information, before judging, whether primary distribution IP address can be used, if, primary distribution IP address before making DHCP client use, and reply DHCPACK confirmation to DHCP client;
S4, judge DHCP client and whether receive DHCPACK confirmation;
S5, when judge DHCP client receive DHCPACK confirmation time, upgrade the lease file that described focus MAC address is corresponding;
S6, when judging that DHCP client is unsuccessful and open the lease file corresponding with focus MAC address or do not receive DHCPACK confirmation, send and comprise the DHCP service device of broadcast information looking for novelty that DHCPdiscover finds information;
S7, after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
S8, after DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected server, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode;
S9, after this selected DHCP service device receives described DHCPrequest request information, sending one to DHCP client and comprise lease IP and other DHCPACK confirmations arranged, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
S10, after DHCP client receives DHCPACK confirmation, lease IP and network interface card title are bound, the front primary distribution IP address in lease file is updated to described lease IP simultaneously.
2. the IP initialization system based on lease file, it is characterised in that, comprising:
Lease file polling unit, for starting Dhcpcd service, obtain the focus MAC address corresponding with network interface card title, judge whether successfully to open the lease file corresponding with focus MAC address, wherein, this lease file comprises network interface card title, focus MAC address and the front primary distribution IP address information corresponding with focus MAC address;
Request unit, for when described lease file polling unit judges successfully to open lease file corresponding to focus MAC address, send DHCPrequest and ask information to corresponding DHCP service device to obtain lease IP, primary distribution IP address information before this DHCPrequest request information;
First identifying unit, for, after DHCP service device receives described DHCPrequest request information, before judging, whether primary distribution IP address can be used;
First confirmation unit, for when primary distribution IP address is available before described first identifying unit judges, making DHCP client use front primary distribution IP address, and reply DHCPACK confirmation to DHCP client;
2nd identifying unit, for judging whether DHCP client receives DHCPACK confirmation;
First lease file update unit, for when described 2nd identifying unit judges that DHCP client receives DHCPACK confirmation, upgrading the lease file that described focus MAC address is corresponding;
Find unit, for when lease file polling unit judge unsuccessful open lease file corresponding to focus MAC address time or the 2nd identifying unit judge that DHCP client does not receive DHCPACK confirmation time, send and comprise DHCPdiscover and find the DHCP service device of the broadcast information of information looking for novelty;
IP address providing unit, for after DHCP service device receives described DHCPdiscover discovery information, from the IP address not yet hired out, select a lease IP distribute to DHCP client, and sending, to DHCP client, the DHCPoffer offer information that one comprises described lease IP and other settings, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
Server selectes unit, for when DHCP client receives first DHCPoffer offer information, select the DHCP service device providing information corresponding with described DHCPoffer as this selected DHCP service device, then send DHCPrequest request information to this selected DHCP service device described to broadcast mode;
2nd confirmation unit, after receiving described DHCPrequest request information when this selected DHCP service device, sending one to DHCP client and comprise lease IP and other DHCPACK confirmations arranged, other settings described comprise DHCP service device address, mask, lease time, renewed treaty time;
2nd lease file update unit, for, after DHCP client receives DHCPACK confirmation, binding lease IP and network interface card title, the front primary distribution IP address in lease file be updated to described lease IP simultaneously.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225675.1A CN103312708B (en) | 2013-06-07 | 2013-06-07 | A kind of IP establishing method based on lease file and system |
| PCT/CN2014/071171 WO2014194680A1 (en) | 2013-06-07 | 2014-01-23 | Lease file-based ip setting method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225675.1A CN103312708B (en) | 2013-06-07 | 2013-06-07 | A kind of IP establishing method based on lease file and system |
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| Publication Number | Publication Date |
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| CN103312708A CN103312708A (en) | 2013-09-18 |
| CN103312708B true CN103312708B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310225675.1A Active CN103312708B (en) | 2013-06-07 | 2013-06-07 | A kind of IP establishing method based on lease file and system |
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| CN (1) | CN103312708B (en) |
| WO (1) | WO2014194680A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312708B (en) * | 2013-06-07 | 2016-06-01 | 福建联迪商用设备有限公司 | A kind of IP establishing method based on lease file and system |
| CN105828397B (en) * | 2016-03-28 | 2019-10-15 | 维沃移动通信有限公司 | A kind of method and mobile terminal switching wireless access point |
| CN105959315B (en) * | 2016-07-06 | 2019-08-20 | 锐捷网络股份有限公司 | A kind of IP keepalive method and client for user's migration |
| CN106453471A (en) * | 2016-07-08 | 2017-02-22 | 合网络技术（北京）有限公司 | Sending method and apparatus, and obtaining method and apparatus of lease data based on distributed applications |
| CN106713522B (en) * | 2016-12-07 | 2020-01-14 | Oppo广东移动通信有限公司 | Wireless fidelity Wi-Fi connection method and mobile terminal |
| CN110798507B (en) * | 2019-09-30 | 2022-05-03 | 互联网域名系统北京市工程研究中心有限公司 | Method and system for DHCP address allocation memory |
| CN110661903B (en) * | 2019-10-12 | 2022-12-06 | 苏州浪潮智能科技有限公司 | Cloud platform route management method and device |
| CN113572830A (en) * | 2021-07-16 | 2021-10-29 | 牙木科技股份有限公司 | Address allocation method, address allocation system, and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103312708B (en) * | 2013-06-07 | 2016-06-01 | 福建联迪商用设备有限公司 | A kind of IP establishing method based on lease file and system |
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2013
- 2013-06-07 CN CN201310225675.1A patent/CN103312708B/en active Active
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2014
- 2014-01-23 WO PCT/CN2014/071171 patent/WO2014194680A1/en active Application Filing
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| US20050105529A1 (en) * | 2003-10-31 | 2005-05-19 | Peter Arberg | Network element modifying the DHCP lease timer |
| CN1738269A (en) * | 2004-08-17 | 2006-02-22 | 杭州华为三康技术有限公司 | Method to allocate protocol relay address table and server address pool for synchronization dynamic host machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014194680A1 (en) | 2014-12-11 |
| CN103312708A (en) | 2013-09-18 |
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