CN107707689A - A kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway device - Google Patents
A kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway device Download PDFInfo
- Publication number
- CN107707689A CN107707689A CN201711049934.4A CN201711049934A CN107707689A CN 107707689 A CN107707689 A CN 107707689A CN 201711049934 A CN201711049934 A CN 201711049934A CN 107707689 A CN107707689 A CN 107707689A
- Authority
- CN
- China
- Prior art keywords
- dhcp
- dynamic host
- host configuration
- configuration protocol
- original
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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]
-
- 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]
-
- 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
Abstract
The present invention relates to DHCP technology, it discloses a kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway device, solve to have existing for the processing scheme in conventional art using limitation, do not possess the problem of versatility, allow dhcp client to be continuing with network using original lease information, prevent service disconnection.This method comprises the following steps：When dhcp server ip address changes, dhcp address pool information is updated, and record original dhcp address pool information and original lease list；Dynamic Host Configuration Protocol server detects the presence of the dhcp client in original lease list, if there is dhcp client online, then create agency, the DHCP message of the dhcp client in original lease list is received by agency and is handled, if online without dhcp client, original lease list and original dhcp address pool information are removed.
Description
Technical field
The present invention relates to DHCP (DHCP) technology, more particularly to a kind of DHCP message processing method,
Dynamic Host Configuration Protocol server and gateway device.
Background technology
With the continuous development of network, increasing terminal needs to access internet.When network size reaches certain journey
After degree, it becomes difficult to manage.Particularly in the network of manual assignment IP address, most common problem be exactly IP address conflict and
IP address management, a solution method for handling the problem of such are exactly to use DHCP protocol for client dynamically distributes IP
Location.
DHCP protocol is worked using client (Client)/server (Server) mode, and DHCP Server are with being responsible for IP
The distribution and management of location, DHCP Client are to need to distribute the equipment of IP address (such as PC, mobile phone, tablet personal computer other are set
It is standby).In dhcp process, DHCP Client dynamically ask network configuration information, DHCP Server roots to DHCP Server
According to configuration strategy corresponding configuration information is returned to DHCP Client.Wherein, DHCP Server return to DHCP Client's
Configuration information is referred to as lease, including the IP address of distribution, gateway ip address, the time using the address and name server
The information such as (DNS, Domain Name Server) address.DHCP Client receive the lease information of DHCP Server returns
Afterwards, its IP address, gateway address and DNS information are configured, you can carry out network access.
When DHCP Server host addresses (IP address) change, because DHCP Server will not proactive notification
DHCP Client, allow it to perceive network configuration information and changed, thus, DHCP Client will not update network configuration
Information, if still accessing network using the IP address in original lease, gateway address, DNS information, cause DHCP Client
Network can not be accessed, it is impossible to normally commence business.
The processing scheme to be changed at present for DHCP Server host addresses has two kinds：
1st, DHCP Server ends force to disconnect the physical communication link between DHCP Client, recover after a period of time
(such as disconnection WiFi connections or ether connect 10 seconds), when DHCP Client ends detect that physical link state changes
Afterwards, IP address renewal is triggered.The processing scheme is realized by switching the Link State of physical link, it is desirable to DHCP Client
It is directly connected to DHCP Server, it is impossible to cross over other two-layer network devices, poor operability, network recovery time length.
2nd, DHCP protocol message is changed, uses not common option Option Fields.When DHCP host addresses change
Afterwards, DHCP Server pass through DHCP message proactive notification DHCP Client.With non-in the DHCP message that DHCP is actively sent
The content of public and not currently used option Option Fields, the different notice of different option content representations, such as again
Apply for IP address, release IP address.The program has used the not common option Option Fields of DHCP protocol, it is necessary to change simultaneously
DHCP Server and Client ends are realized, are only applicable to the equipment that DHCP Server and DHCP Client are same manufacturers,
Do not possess versatility, simultaneously because being provided to the not common option Option Fields of DHCP protocol without clear and definite agreement, Qi Tachang
Business may use identical option fields, can exist and realize inconsistent caused protocol-compliant sex chromosome mosaicism.
To sum up, some uses be present in the processing scheme that the DHCP Server host addresses in conventional art change
Limitation, does not possess versatility.
The content of the invention
The technical problems to be solved by the invention are：It is proposed a kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway
Equipment, solve existing for the processing scheme in conventional art to have using limiting, do not possess the problem of versatility, allow dhcp client
Network is continuing with using original lease information, prevents service disconnection.
On the one hand, the embodiment of the present invention proposes a kind of DHCP message processing method, and it comprises the following steps：
When the IP address of Dynamic Host Configuration Protocol server changes, Dynamic Host Configuration Protocol server renewal dhcp address pool information, and record original
Dhcp address pool information and original lease list；
Dynamic Host Configuration Protocol server detects the presence of the dhcp client in original lease list, if existing without dhcp client
Line, then original lease list and original dhcp address pool information are removed, dhcp client is online if having, and Dynamic Host Configuration Protocol server creates
Agency, agency receive the DHCP message of the dhcp client in original lease list and handled.
As further optimization, the Dynamic Host Configuration Protocol server detect the dhcp client in original lease list in wire
State, specifically include：
Using original IP address of Dynamic Host Configuration Protocol server and MAC Address as the sender address information in ARP request message, make
Target address information construction ARP (address resolution protocol) request reports are used as by the use of the IP address in original lease list and MAC Address
Text, the ARP request message is sent to corresponding dhcp client with mode of unicast；
When Dynamic Host Configuration Protocol server receives the arp response message of dhcp client after, sender IP in arp response message is checked
Whether location and mac address information match with the list item in original lease list, if matching, judges that the dhcp client is online,
Otherwise, it is determined that the dhcp client is offline, the list item corresponding to deletion from original lease list.
As further optimization, the Dynamic Host Configuration Protocol server creates agency, specifically included：After Dynamic Host Configuration Protocol server creates agency,
The agency creates a virtual network interface, and by physical network interface used in virtual network interface and Dynamic Host Configuration Protocol server
Bound, the virtual network interface uses original IP address of Dynamic Host Configuration Protocol server, and keeps identical with physical network interface
Business configuration.
As further optimization, the agency receives the DHCP message of the dhcp client in original lease list and progress
Processing, is specifically included：
The DHCP message that the dhcp client received from virtual network interface in original lease list is sent is acted on behalf of,
If DHCP message is DHCP DISCOVER, hands to Dynamic Host Configuration Protocol server and enter row address distribution；
If DHCP message is DHCP REQUEST, according to the state of dhcp client, different operating is performed；
If DHCP message is DHCP RELEASE, the lease list item corresponding to deletion from original lease list；
If DHCP message is DHCP INFORM, the current network configuration information of Dynamic Host Configuration Protocol server is returned.
As further optimization, the state according to dhcp client, different operating is performed, is specifically included：
When dhcp client is in solicited status, agency returns to DHCP ACK, allows dhcp client to use DHCP
Lease information in REQUEST messages；
When dhcp client is in more new state, agency returns to DHCP NAK, allows dhcp client to restart to ask,
Follow-up DHCP message is handled by Dynamic Host Configuration Protocol server；
When dhcp client is in weight binding state, agency returns to DHCP NAK, allows dhcp client to resend
DHCP request, follow-up DHCP message are handled by Dynamic Host Configuration Protocol server.
As further optimization, this method also includes step：
When in original lease list without any list item, Dynamic Host Configuration Protocol server stops agency, deletes the virtual network interface.
Second aspect, the embodiment of the present invention also proposed a kind of Dynamic Host Configuration Protocol server, and it includes：
Update module, for when the IP address of Dynamic Host Configuration Protocol server changes, updating dhcp address pool information, record is former
Some dhcp address pool information and original lease list；
Detection module, for detecting the presence of the dhcp client in original lease list, if there is dhcp client
Online, then creation module is acted on behalf of in triggering, if online without dhcp client, module is removed in triggering；
Creation module, for creating agency when detection module has detected that dhcp client is online, received by agency former
There is the DHCP message of the dhcp client in lease list and handled；
Module is removed, for when detection module detects that no dhcp client is online, removing original lease list and original
Some dhcp address pool information.
The third aspect, present invention also offers a kind of gateway device, the gateway device includes above-mentioned second aspect institute
The Dynamic Host Configuration Protocol server stated, the IP address of the Dynamic Host Configuration Protocol server refer to the IP address of gateway device.
The beneficial effects of the invention are as follows：When dhcp server ip address changes, Dynamic Host Configuration Protocol server is created by dynamic
A kind of agency mechanism is built, notifies dhcp client again please without switching or actively sending DHCP message by communication link state
Network configuration information is sought, and allows dhcp client to be continuing with network using original lease information, prevents service disconnection；
Network operation cost can be reduced, reduces network operation difficulty, reduces the workload of network manager, and reduce use to a certain extent
The risk that family operation is brought.
Brief description of the drawings
Fig. 1 is the Dynamic Host Configuration Protocol server structured flowchart in the embodiment of the present invention；
Fig. 2 is the DHCP message process flow figure in the embodiment of the present invention.
Embodiment
The present invention is directed to propose a kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway device, solve conventional art
In processing scheme existing for have using limit, do not possess the problem of versatility, allow dhcp client to believe using original lease
Breath is continuing with network, prevents service disconnection.
Below in conjunction with the accompanying drawings and embodiment is further described to the solution of the present invention：
As shown in figure 1, the Dynamic Host Configuration Protocol server proposed in the present embodiment includes：
Update module, for when the IP address of Dynamic Host Configuration Protocol server changes, updating dhcp address pool information, record is former
Some dhcp address pool information and original lease list；
Detection module, for detecting the presence of the dhcp client in original lease list, if there is dhcp client
Online, then creation module is acted on behalf of in triggering, if online without dhcp client, module is removed in triggering；
Creation module, for creating agency when detection module has detected that dhcp client is online, received by agency former
There is the DHCP message of the dhcp client in lease list and handled；
Module is removed, for when detection module detects that no dhcp client is online, removing original lease list and original
Some dhcp address pool information.
In specific application, above-mentioned Dynamic Host Configuration Protocol server is included in gateway device, and the IP address of Dynamic Host Configuration Protocol server is net
Close the IP address of equipment.
As further optimization, the creation module is specifically used for, and after agency is created, creates a virtual network and connects
Mouthful, and virtual network interface and physical interface used in Dynamic Host Configuration Protocol server are bound, the virtual network interface uses
Original IP address of Dynamic Host Configuration Protocol server, and keep identical business configuration with physical network interface.
As further optimization, the detection module detects the presence of the dhcp client in original lease list,
Specifically include：
Using Dynamic Host Configuration Protocol server original IP address and MAC Address as the sender address information in ARP request message,
ARP request message is constructed as target address information using the IP address in original lease list and MAC Address, by the ARP
Request message is sent to the dhcp client specified with mode of unicast；
After the arp response message of dhcp client is received, with checking in arp response message sender's IP address and MAC
Whether location information matches with the list item in original lease list, if matching, judges that the dhcp client is online, otherwise, it is determined that
The dhcp client is offline, the list item corresponding to deletion from original lease list.
As further optimization, the agency that the creation module creates is used for, and original lease is received from virtual network interface
The DHCP message of dhcp client transmission in list is simultaneously handled.
Based on above-mentioned Dynamic Host Configuration Protocol server, the present embodiment propose DHCP message processing method as shown in Fig. 2 it include it is following
Implementation steps：
When the IP address of 1.DHCP servers changes, Dynamic Host Configuration Protocol server renewal dhcp address pool information, and record original
Some dhcp address pool information and original lease list；
2.DHCP servers detect the presence of the dhcp client in original lease list, if there is dhcp client to exist
Line, then into step 3, if online without dhcp client, into step 4；
In this step, Dynamic Host Configuration Protocol server is existed by the dhcp client in the original lease list of ARP request packet check
Wire state；Specially：
Using original IP address of Dynamic Host Configuration Protocol server and MAC Address as the sender address information in ARP request message, make
ARP request message is constructed as target address information by the use of the IP address in original lease list and MAC Address, please by the ARP
Message is asked to be sent to corresponding dhcp client with mode of unicast；
After the arp response message of dhcp client is received, with checking in arp response message sender's IP address and MAC
Whether location information matches with the list item in original lease list, if matching, judges that the dhcp client is online, otherwise, it is determined that
The dhcp client is offline, the list item corresponding to deletion from original lease list.
3.DHCP servers create agency, and the DHCP message of the dhcp client in original lease list is received simultaneously by agency
Handled.
In this step, agency can create a virtual network interface, and virtual network interface and Dynamic Host Configuration Protocol server are made
Physical network interface is bound, and the virtual network interface uses original IP address of Dynamic Host Configuration Protocol server, and and Physical Network
Network interface keeps identical business configuration；Act on behalf of and provide DHCP service for the dhcp client in original lease list, can also tie up
Protect the dhcp state of original lease list and main frame；
The process of the DHCP message of agency's processing dhcp client is as follows：
Act on behalf of the DHCP message for receiving dhcp client from virtual network interface and sending；
When receiving DHCP DISCOVER messages, hand to Dynamic Host Configuration Protocol server and handled, row address is entered by Dynamic Host Configuration Protocol server
Distribution；
When receiving DHCP REQUEST messages, according to dhcp client state, different operating is performed：
A) when dhcp client is in solicited status, agency returns to DHCP ACK (confirming response), allows dhcp client
Use the lease information in DHCP REQUEST messages；
B) when dhcp client is in more new state, agency returns to DHCP NAK (refusal respond), allows dhcp client
DHCP request is resend, follow-up DHCP message is handled by Dynamic Host Configuration Protocol server；
C) when dhcp client is in weight binding state, agency returns to DHCP NAK (refusal respond), allows DHCP client
End restarts to ask, and follow-up DHCP message is handled by Dynamic Host Configuration Protocol server.
When receiving DHCP RELEASE messages, lease list item corresponding to being deleted from original lease list is acted on behalf of, works as original
When having in lease list without any list item, Dynamic Host Configuration Protocol server stop agency, delete virtual network interface, follow-up DHCP service by
Dynamic Host Configuration Protocol server is completed.
When receiving DHCP INFORM texts, the current network configuration information of Dynamic Host Configuration Protocol server is returned.
4. remove original lease list and original dhcp address pool information.
When detecting that no dhcp client is online, original lease list and original dhcp address pool information are removed.
Claims (11)
1. a kind of DHCP message processing method, it is characterised in that comprise the following steps：
When the IP address of Dynamic Host Configuration Protocol server changes, Dynamic Host Configuration Protocol server renewal dhcp address pool information, and record original
Dhcp address pool information and original lease list；
Dynamic Host Configuration Protocol server detects the presence of the dhcp client in original lease list, if online without dhcp client,
Original lease list and original dhcp address pool information are removed, if having, dhcp client is online, and Dynamic Host Configuration Protocol server creates agency,
Agency receives the DHCP message of the dhcp client in original lease list and handled.
2. the method as described in claim 1, it is characterised in that the Dynamic Host Configuration Protocol server detects the DHCP in original lease list
The presence of client, is specifically included：
Using original IP address of Dynamic Host Configuration Protocol server and MAC Address as the sender address information in ARP request message, original is used
There are the IP address in lease list and MAC Address to construct ARP request message as target address information, by the ARP request report
Text is sent to corresponding dhcp client with mode of unicast；
After Dynamic Host Configuration Protocol server receives the arp response message of dhcp client, check arp response message in sender's IP address and
Whether mac address information matches with the list item in original lease list, if matching, judges that the dhcp client is online, otherwise,
Judge that the dhcp client is offline, the list item corresponding to deletion from original lease list.
3. the method as described in claim 1, it is characterised in that the Dynamic Host Configuration Protocol server creates agency, specifically includes：
After Dynamic Host Configuration Protocol server creates agency, the agency creates a virtual network interface, and by virtual network interface and DHCP
Physical network interface is bound used in server, and the virtual network interface uses original IP address of Dynamic Host Configuration Protocol server,
And keep identical business configuration with physical network interface.
4. the method as described in claim 1, it is characterised in that the agency receives the dhcp client in original lease list
DHCP message and handled, specifically include：
The DHCP message that the dhcp client received from virtual network interface in original lease list is sent is acted on behalf of,
If DHCP message is DHCP DISCOVER, hands to Dynamic Host Configuration Protocol server and enter row address distribution；
If DHCP message is DHCP REQUEST, according to the state of dhcp client, different operating is performed；
If DHCP message is DHCP RELEASE, the lease list item corresponding to deletion from original lease list；
If DHCP message is DHCP INFORM, the current network configuration information of Dynamic Host Configuration Protocol server is returned.
5. method as claimed in claim 4, it is characterised in that the state according to dhcp client, different operating is performed,
Specifically include：
When dhcp client is in solicited status, agency returns to DHCP ACK, allows dhcp client to be reported using DHCPREQUEST
Lease information in text；
When dhcp client is in more new state, agency returns to DHCP NAK, allows dhcp client to restart to send DHCP
Request, follow-up DHCP message are handled by Dynamic Host Configuration Protocol server；
When dhcp client is in weight binding state, agency returns to DHCP NAK, allows dhcp client to restart to ask, after
Continuous DHCP message is handled by Dynamic Host Configuration Protocol server.
6. the method as described in claim 1-5 any one, it is characterised in that this method also includes step：
When in original lease list without any list item, Dynamic Host Configuration Protocol server stops agency, deletes the virtual network interface.
A kind of 7. Dynamic Host Configuration Protocol server, it is characterised in that including：
Update module, for when the IP address of Dynamic Host Configuration Protocol server changes, updating dhcp address pool information, recording original
Dhcp address pool information and original lease list；
Detection module, for detecting the presence of the dhcp client in original lease list, if having, dhcp client is online,
Creation module is then triggered, if online without dhcp client, module is removed in triggering；
Creation module, for creating agency when detection module has detected that dhcp client is online, original rent is received by agency
The DHCP message of dhcp client about in list is simultaneously handled；
Module is removed, for when detection module detects that no dhcp client is online, removing original lease list and original
Dhcp address pool information.
8. Dynamic Host Configuration Protocol server as claimed in claim 7, it is characterised in that the creation module is specifically used for：
After creating and acting on behalf of, a virtual network interface is created, and by thing used in virtual network interface and Dynamic Host Configuration Protocol server
Reason interface is bound, and the virtual network interface uses original IP address of Dynamic Host Configuration Protocol server, and is kept with physical network interface
Identical business configuration.
9. Dynamic Host Configuration Protocol server as claimed in claim 7, it is characterised in that the detection module is detected in original lease list
The presence of dhcp client, is specifically included：
Original IP address and MAC Address using Dynamic Host Configuration Protocol server are used as the sender address information in ARP request message, use
IP address and MAC Address in original lease list construct ARP request message as target address information, by the ARP request
Message is sent to the dhcp client specified with mode of unicast；
After the arp response message of dhcp client is received, sender's IP address and MAC Address letter in arp response message are checked
Whether breath matches with the list item in original lease list, if matching, judges that the dhcp client is online, otherwise, it is determined that should
Dhcp client is offline, the list item corresponding to deletion from original lease list.
10. the Dynamic Host Configuration Protocol server as described in claim 7-9 any one, it is characterised in that the generation that the creation module creates
Manage and be used for, the DHCP message that the dhcp client in original lease list is sent is received from virtual network interface and is handled.
11. a kind of gateway device, it is characterised in that operation is just like described in claim any one of 7-10 in the gateway device
Dynamic Host Configuration Protocol server, the IP address of the Dynamic Host Configuration Protocol server refer to the IP address of the gateway device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049934.4A CN107707689B (en) | 2017-10-31 | 2017-10-31 | DHCP message processing method, DHCP server and gateway equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049934.4A CN107707689B (en) | 2017-10-31 | 2017-10-31 | DHCP message processing method, DHCP server and gateway equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107707689A true CN107707689A (en) | 2018-02-16 |
| CN107707689B CN107707689B (en) | 2020-09-22 |
Family
ID=61176531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049934.4A Active CN107707689B (en) | 2017-10-31 | 2017-10-31 | DHCP message processing method, DHCP server and gateway equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107707689B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112235881A (en) * | 2020-10-21 | 2021-01-15 | 深圳市友华软件科技有限公司 | Method and device for truly displaying down-hanging equipment based on ONU (optical network Unit) relay network |
| EP3800853A4 (en) * | 2018-06-29 | 2021-06-23 | Huawei Technologies Co., Ltd. | Address management method and device |
| CN114374670A (en) * | 2021-12-29 | 2022-04-19 | 中国电信股份有限公司 | Method and device for managing IP resource pool, DHCP server and storage medium |
| CN114745359A (en) * | 2022-03-23 | 2022-07-12 | 奥创智能科技有限公司 | System and method for reducing address renewal frequency of user terminal |
| CN114374670B (en) * | 2021-12-29 | 2024-04-30 | 中国电信股份有限公司 | Method and device for managing IP resource pool, DHCP server and storage medium |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018159A (en) * | 2007-03-12 | 2007-08-15 | 杭州华为三康技术有限公司 | Load balance method under the multi-gateway environment and DHCP server |
| US20080285557A1 (en) * | 2007-05-18 | 2008-11-20 | Huawei Technologies Co., Ltd. | Method, System and Relay Device for Transmitting Packet |
| US20110066694A1 (en) * | 2009-09-16 | 2011-03-17 | Avaya Inc. | Sip endpoint enhancer |
| US7962605B2 (en) * | 2001-11-20 | 2011-06-14 | Microsoft Corporation | Distributed device discovery framework for a network |
| CN102231725A (en) * | 2010-03-25 | 2011-11-02 | 北京星网锐捷网络技术有限公司 | Method, equipment and system for authenticating dynamic host configuration protocol message |
| CN102299932A (en) * | 2011-09-22 | 2011-12-28 | 杭州华三通信技术有限公司 | Backup method for DHCP (Dynamic Host Configuration Protocol) server and DHCP server |
| CN102497378A (en) * | 2011-12-15 | 2012-06-13 | 杭州华三通信技术有限公司 | Method and device for dynamically choosing DHCP server for client terminal |
| CN103188257A (en) * | 2011-12-28 | 2013-07-03 | 北京东土科技股份有限公司 | Device for realizing safe interaction between DHCP (dynamic host configuration protocol) client side and DHCP server |
| CN103401954A (en) * | 2013-08-02 | 2013-11-20 | 汉柏科技有限公司 | Implementation method of virtual DHCP (dynamic host configuration protocol) |
| CN104158694A (en) * | 2014-08-27 | 2014-11-19 | 福建星网锐捷网络有限公司 | Hot standby method and device for DHCPv6 (Dynamic Host Configuration Protocol for IPv6) server |
| CN104734880A (en) * | 2014-12-02 | 2015-06-24 | 重庆尊贤科技有限公司 | DHCP backup system independent of DHCP server supporting and cooperation |
-
2017
- 2017-10-31 CN CN201711049934.4A patent/CN107707689B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7962605B2 (en) * | 2001-11-20 | 2011-06-14 | Microsoft Corporation | Distributed device discovery framework for a network |
| CN101018159A (en) * | 2007-03-12 | 2007-08-15 | 杭州华为三康技术有限公司 | Load balance method under the multi-gateway environment and DHCP server |
| US20080285557A1 (en) * | 2007-05-18 | 2008-11-20 | Huawei Technologies Co., Ltd. | Method, System and Relay Device for Transmitting Packet |
| US20110066694A1 (en) * | 2009-09-16 | 2011-03-17 | Avaya Inc. | Sip endpoint enhancer |
| CN102231725A (en) * | 2010-03-25 | 2011-11-02 | 北京星网锐捷网络技术有限公司 | Method, equipment and system for authenticating dynamic host configuration protocol message |
| CN102299932A (en) * | 2011-09-22 | 2011-12-28 | 杭州华三通信技术有限公司 | Backup method for DHCP (Dynamic Host Configuration Protocol) server and DHCP server |
| CN102497378A (en) * | 2011-12-15 | 2012-06-13 | 杭州华三通信技术有限公司 | Method and device for dynamically choosing DHCP server for client terminal |
| CN103188257A (en) * | 2011-12-28 | 2013-07-03 | 北京东土科技股份有限公司 | Device for realizing safe interaction between DHCP (dynamic host configuration protocol) client side and DHCP server |
| CN103401954A (en) * | 2013-08-02 | 2013-11-20 | 汉柏科技有限公司 | Implementation method of virtual DHCP (dynamic host configuration protocol) |
| CN104158694A (en) * | 2014-08-27 | 2014-11-19 | 福建星网锐捷网络有限公司 | Hot standby method and device for DHCPv6 (Dynamic Host Configuration Protocol for IPv6) server |
| CN104734880A (en) * | 2014-12-02 | 2015-06-24 | 重庆尊贤科技有限公司 | DHCP backup system independent of DHCP server supporting and cooperation |
Non-Patent Citations (2)
| Title |
|---|
| RALPH DROMS: "AUTOMATED CONFIGURATION OF TCP/IP WITH DHCP", 《IEEE INTERNET COMPUTING》 * |
| 韩丽, 崔建涛: ""DHCP 中继代理在虚拟机上的实现"", 《太原理工大学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3800853A4 (en) * | 2018-06-29 | 2021-06-23 | Huawei Technologies Co., Ltd. | Address management method and device |
| CN112235881A (en) * | 2020-10-21 | 2021-01-15 | 深圳市友华软件科技有限公司 | Method and device for truly displaying down-hanging equipment based on ONU (optical network Unit) relay network |
| CN114374670A (en) * | 2021-12-29 | 2022-04-19 | 中国电信股份有限公司 | Method and device for managing IP resource pool, DHCP server and storage medium |
| CN114374670B (en) * | 2021-12-29 | 2024-04-30 | 中国电信股份有限公司 | Method and device for managing IP resource pool, DHCP server and storage medium |
| CN114745359A (en) * | 2022-03-23 | 2022-07-12 | 奥创智能科技有限公司 | System and method for reducing address renewal frequency of user terminal |
| CN114745359B (en) * | 2022-03-23 | 2024-02-27 | 奥创智能科技有限公司 | Method for reducing user terminal address renewal frequency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107707689B (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20100064605A (en) | Method and web server for managing connection | |
| CN101442566A (en) | Method and apparatus for implementing dynamic domain name update | |
| CN101355524A (en) | Method, system, server and terminal for processing information | |
| CN104363247A (en) | Flow saving method and device adopting saving-free application | |
| CN101437021A (en) | Method, system and apparatus for processing access prompt information | |
| CN111510325B (en) | Alarm information pushing method, server, client and system | |
| CN103516587B (en) | Instant communication client terminal disconnection reconnection method and device | |
| JP2013518480A (en) | Method, apparatus, and system for handling node failures | |
| CN107707689A (en) | A kind of DHCP message processing method, Dynamic Host Configuration Protocol server and gateway device | |
| CN101188618B (en) | Method, system, server and terminal for canceling push message | |
| CN103716230A (en) | Message sending method, device and server | |
| CN107995321A (en) | A kind of VPN client acts on behalf of the method and device of DNS | |
| US10680930B2 (en) | Method and apparatus for communication in virtual network | |
| CN104009961A (en) | PPPoE session ID distribution method and equipment thereof | |
| KR20060112350A (en) | Notification system and method using messenger | |
| CN103391303B (en) | Service fault noticing method and server using same | |
| CN103916489B (en) | The many IP of a kind of single domain name domain name analytic method and system | |
| CN107911496A (en) | A kind of VPN service terminal acts on behalf of the method and device of DNS | |
| CN108712514A (en) | IP address management method, apparatus and electronic equipment | |
| CN104955136A (en) | Terminal management apparatus, terminal, communication system, terminal management method, and program | |
| JPWO2009087885A1 (en) | Server system and event message transmission method thereof, client terminal and connection method and program thereof, recording medium | |
| CN103227733A (en) | Topology discovery method and topology discovery system | |
| CN103533001A (en) | Communication method and communication system based on HTTP multi-proxy, and intermediate proxy server | |
| CN109788520A (en) | Method for switching network, AMF and RAN node | |
| US10581979B2 (en) | Information transmission method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 610041 nine Xing Xing Road 16, hi tech Zone, Sichuan, Chengdu Patentee after: MAIPU COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 610041, 17 floor, maple building, 1 building, 288 Tianfu street, Chengdu, Sichuan. Patentee before: MAIPU COMMUNICATION TECHNOLOGY Co.,Ltd. |