CN102710805B - A kind of method and apparatus upgrading IP address - Google Patents
A kind of method and apparatus upgrading IP address Download PDFInfo
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- CN102710805B CN102710805B CN201210150640.1A CN201210150640A CN102710805B CN 102710805 B CN102710805 B CN 102710805B CN 201210150640 A CN201210150640 A CN 201210150640A CN 102710805 B CN102710805 B CN 102710805B
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Abstract
The invention provides a kind of method upgrading IP address, the method comprises: networking unit sends the message of ARP after reaching the standard grade, the source MAC of this message is MAC, the object MAC of this networking unit is broadcast MAC, the transmitting terminal carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address obtained after this networking unit is reached the standard grade; This networking unit receives ARP message, judge that whether transmitting terminal is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if, upgrade the IP address of self outer domain information China and foreign countries territory networking unit, if not, do not upgrade the IP address of self outer domain information foreign lands networking unit.The present invention also provides a kind of device upgrading IP address.Technology of the present invention makes the networking unit in monitor network can get the information of other networking unit IP address change in time, thus the IP address of self outer domain information China and foreign countries territory networking unit that upgrades in time automatically.
Description
Technical field
The present invention relates to field of video monitoring, particularly relate to a kind of method and apparatus upgrading networking unit IP address.
Background technology
In the interconnected monitoring system of multistage multi-domain, its monitoring model is the networking model in the multiple territories that there are multistage membership credentials.Higher level territory can realize and the interconnecting of multiple subordinate domain, and also can realize interconnecting each other between sane level territory.Interconnecting between territory needs networking unit to be responsible for realizing session control order in networking process, the transmission of Media Stream and network management data and conversion.Networking unit is the logic entity of the trans-regional networking share interface of composition video monitoring system, can independently apparatus-form exist or be built in the monitoring server in area video supervisory control system.
The information such as in existing scheme, between the territory of monitoring, relation is all realized by assigned ip address, namely configures the IP address of other networking unit on networking unit, and encode in territory, subscriber-coded, after having configured, register flow path between two interconnection unit initiated domain.After having registered, carry out monitoring business process.But when networking unit uses the mode of DHCP and so on to obtain IP address, the address of networking unit will not be fixing IP address.Therefore, after the address of networking unit is changed, need again the relation between manual configuration territory, and manual configuration will increase the fussy degree of information change between territory, is the mode being not easy to be easily accepted by a user.
Summary of the invention
The invention provides a kind of method upgrading IP address, the method is applied in the networking unit of cross-domain video surveillance network, and the method comprises the steps:
This networking unit sends the message of ARP after reaching the standard grade, the source MAC of this ARP message is the MAC Address of this networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address obtained after this networking unit is reached the standard grade;
This networking unit receives ARP message, judge that whether transmitting terminal ethernet mac address is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if, upgrade the IP address of self outer domain information China and foreign countries territory networking unit, if not, do not upgrade the IP address of self outer domain information foreign lands networking unit.
More preferably, judge whether the sender of this ARP message is arranged in self outer domain information and specifically comprises:
This networking unit sends the checking request of carrying self-identity information to foreign lands networking unit;
This networking unit receives the checking request sent after being proved to be successful its identity information of foreign lands networking unit, checks whether the identity information of foreign lands networking unit has in the outer domain information being kept at self.
When this networking unit IP address change and this networking unit and foreign lands networking unit is current be in interconnected state time, this networking unit sends address change message by the session current with foreign lands networking unit, carries the IP address after the change of this networking unit and identity information in this message;
This networking unit receives the address change message of foreign lands networking unit, judge whether the identity information of foreign lands networking unit has the outer domain information neutralization/that is kept at self or judge that whether this address change information sent by the session that self and foreign lands networking unit are current, if so, in self outer domain information, upgrade the IP address of foreign lands networking unit.
More preferably, confirmation message is replied further to foreign lands networking unit when this networking unit upgrades the IP address information of foreign lands networking unit.
More preferably, this networking unit does not receive the confirmation message that foreign lands networking unit sends in Preset Time, this networking unit sends the message of ARP, the source MAC of this ARP message is the MAC Address of this networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address after this networking unit changes.
The present invention also provides a kind of device upgrading IP address, and this device is arranged in the networking unit of cross-domain video surveillance network, and this device comprises:
Self changes processing module, for sending the message of ARP after self networking unit is reached the standard grade, the source MAC of this ARP message is the MAC Address of self networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of self networking unit, and transmitting terminal IP address is the IP address obtained after self networking unit is reached the standard grade;
Processing module is changed in foreign lands, for receiving ARP message, judge that whether transmitting terminal ethernet mac address is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if so, upgrade the IP address of self networking unit outer domain information China and foreign countries territory networking unit, if not, the IP address of self networking unit outer domain information China and foreign countries territory networking unit is not upgraded.
More preferably, change processing module in foreign lands is judging whether the sender of this ARP message is arranged in self outer domain information and specifically performs following steps:
The checking request of carrying self-identity information is sent to foreign lands networking unit;
Receive the checking request sent after being proved to be successful the identity information of himself networking unit of foreign lands networking unit, check whether the identity information of foreign lands networking unit has and be kept in the outer domain information of self networking unit.
Self change processing module to be used for self networking unit IP address and to change and self networking unit and foreign lands networking unit is current when being in interconnected state, send address change message by the session current with foreign lands networking unit, in this message, carry the IP address after the change of self networking unit and identity information;
Processing module is changed for receiving the address change message of foreign lands networking unit in foreign lands, judge whether the identity information of foreign lands networking unit has the outer domain information neutralization/that is kept at self networking unit or judge that whether this address change information sent by self networking unit and the current session of foreign lands networking unit, if so, in the outer domain information of self networking unit, upgrade the IP address of foreign lands networking unit.
More preferably, processing module is changed for replying confirmation message further to foreign lands networking unit when upgrading the IP address information of foreign lands networking unit in foreign lands.
More preferably, when self change processing module does not receive the confirmation message of foreign lands change processing module transmission in Preset Time, send the message of ARP, the source MAC of this ARP message is the MAC Address of self networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of self networking unit, and transmitting terminal IP address is the IP address after self networking unit changes.
Beneficial effect of the present invention: reaching the standard grade to obtain behind IP address by networking unit initiatively sends special ARP message, address change notification message is sent in time after self and other foreign lands networking unit interconnected IP of generation address change, make other networking unit associated therewith in monitor network can get the information of IP address change in time, thus the IP address of self outer domain information China and foreign countries territory networking unit that upgrades in time.The process that whole IP address upgrades does not need artificial participation, not only convenient but also rapid.
Accompanying drawing explanation
Fig. 1 is the network connection diagram of cross-domain networking unit.
Fig. 2 is the building-block of logic of embodiment of the present invention device.
Embodiment
Below the embodiment of the present invention is described in detail.Fig. 1 comprises two networking unit: networking unit A and networking unit B, and they are arranged in cross-domain video surveillance network, and they are also in same double layer network (second layer in OSI Reference Model: data link layer) simultaneously.Networking unit A and networking unit B can be relationship between superior and subordinate, also can be sane level relation.If relationship between superior and subordinate, such as networking unit A is higher level, networking unit B is subordinate, then networking unit B initiatively initiates registration to networking unit A, registered rear networking unit A and networking unit B and be in interconnected state, networking unit A pushes its catalogue of administering and facility information to networking unit B.If sane level relation, when networking unit A needs the monitoring resource of shared networking unit B, networking unit A initiates registration to object networking unit B, has registered rear networking unit A and networking unit B and has been in interconnected state, and the catalogue that networking unit B propelling movement networking unit A needs and facility information are to A; When networking unit B needs the monitoring resource of shared networking unit A, networking unit B initiates registration to object networking unit A, registered rear networking unit A and networking unit B for interconnected state, the catalogue that networking unit A propelling movement networking unit B needs and facility information are to B.No matter being networking unit A or networking unit B, when registering to the other side, all needing the IP address information knowing the other side.In the present invention, reaching between networking unit and automatically notify respective IP address, making the other side, when registering to oneself, any puzzlement not occur.
Renewal networking unit IP address comprises secondary IP address X and is updated to IP address Y, also comprises and adds IP address, namely originally do not have IP address, and just there is IP address after interpolation.
The IP address change of networking unit may be present in this networking unit when not occurring interconnected with other networking unit, also may be present in this networking unit when occurring interconnected with other networking unit.In both cases, the mode of notice change is different.
Fig. 2 is the device of the renewal IP address in the embodiment of the present invention, and this application of installation is in networking unit.The device of this renewal IP address comprises: self change processing module and foreign lands change processing module.
Step 11, networking unit send the message of ARP after reaching the standard grade, the source MAC of this ARP message is the MAC Address of this networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address obtained after this networking unit is reached the standard grade.This step performs by self changing processing module.
For networking unit A, can be obtained the IP address of self after networking unit A reaches the standard grade by DHCP mode, networking unit A needs other networking unit in informing network, the IP address of such as networking unit B self.In double layer network, networking unit A sends the ARP message of foregoing.This ARP message is a kind of special ARP message, its transmitting terminal ethernet address and destination ethernet address are the MAC Address of this networking unit, transmitting terminal IP address is filled to the IP address obtained after networking unit A reaches the standard grade, as for destination IP address, can be any, but be filled to the same relatively good with transmitting terminal IP address.The IP address of carrying networking unit A by the mode of this ARP message is a kind of easier mode, because this can be compatible with existing ARP message, even if do not support the equipment of the present invention program, after receiving this ARP message, also can be used as common ARP message process.Support that the equipment of the present invention program is when finding that the transmitting terminal ethernet address of this ARP message is consistent with destination ethernet address, then carry out special processing.
Step 12, networking unit receive the ARP message that foreign lands networking unit sends, judge that whether the transmitting terminal ethernet mac address of this ARP message is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if, the IP address upgrading the foreign lands networking unit in self outer domain information is the IP address in this ARP message source field, if not, does not upgrade this IP address information.This step changes processing module by foreign lands and performs.
Such as, it is self MAC that networking unit B have sent source MAC, target MAC (Media Access Control) address is broadcast MAC, and transmitting terminal ethernet address and destination ethernet address are the ARP message of own MAC address, and transmitting terminal IP address is the IP address obtained after networking unit B reaches the standard grade.Networking unit A receive foreign lands networking unit B send this ARP message resolve after, find that the transmitting terminal ethernet mac address of this ARP message is identical with receiving terminal ethernet mac address, then think that this ARP message carries the IP address needing self to carry out outer domain IP address renewal.But networking unit A also needs to judge whether networking unit B is correlated with self, and namely networking unit B is the need of carrying out interconnected with self further.So in order to identify the sender sending this special ARP message, need first to judge this sender whether in the outer domain information of self, if the special ARP message that the networking unit not in self outer domain information sends, the networking unit received is used as common ARP and is carried out processing that (networking unit preserves the relevant information of other networking unit in self outer domain information, and such as networking unit A records the territory coded message of networking unit B, subscriber-coded information etc. in self outer domain list; Networking unit B also records the territory coded message of networking unit A, subscriber-coded information etc. in self outer domain list).Multiple method can be had to judge networking unit B whether in the outer domain information of networking unit A.
Method one
After networking unit B states special ARP message before sending, broadcast transmission can carry the authentication request of self-identity information further.This identity information generally identifies with territory coding, does not certainly get rid of other information that can identify its identity.Networking unit A judges the identity information of networking unit B after receiving described authentication request, if whether territory coding is in the outer domain information of self, if, the IP address upgrading the networking unit B in self outer domain information is the IP address in this ARP message source field, if not, this IP address information is not upgraded.Certain networking unit A afterwards can also send the checking of carrying self-identity information further to be asked to networking unit B, networking unit B verifies it in the same way, if the verification passes, networking unit B also upgrades the IP address of the networking unit A in self outer domain information.
Method two
Step 120, networking unit A are when judging that the transmitting terminal ethernet mac address in the ARP message that networking unit B sends is identical with receiving terminal ethernet mac address, sending the checking of carrying self-identity information asks to networking unit B, and the destination address of this message is the address of networking unit B.The action of networking unit A is changed processing module by the foreign lands in networking unit A and is performed.
Step 121, networking unit B receive the checking request of networking unit A, check whether the identity information of networking unit A has in the outer domain information being kept at self, if, networking unit B sends the checking request of carrying self-identity information to networking unit A, if not, not return information to networking unit A.The action of networking unit B is changed processing module by the foreign lands in networking unit B and is performed.
Networking unit B receives the authentication request of networking unit A, and the mode of checking is exactly look into the identity information seeing if there is networking unit A in the outer domain information of self.This identity information can identify with territory coding, also can identify by subscriber-coded information, can also identify by other information.After networking unit B is verified networking unit A, networking unit B thinks that networking unit A is legal foreign lands networking unit, and the identity information of replying networking unit A self is further verified for networking unit A.If the authentication of networking unit A to it is passed through, that networking unit A just can change the IP address of networking unit B in the outer domain information of self.
Step 122, networking unit A receive the checking request of networking unit B, check whether the identity information of networking unit B has in the outer domain information being kept at self, if so, upgrade the IP address information of networking unit B, if not, the IP address information of networking unit B is not upgraded.The action of networking unit A is changed processing module by the foreign lands of networking unit A and is performed.
Execution of step 122, networking unit A just completes the change of networking unit B IP address in self outer domain information.But in order to networking unit B also refreshes the IP address (even if the IP address of networking unit A does not change) of networking unit A, confirmation message is replied further to networking unit B when networking unit A upgrades the IP address information of networking unit B in step 122, networking unit B upgrades the IP address information of networking unit A further after receiving this confirmation message, the IP address of networking unit A is exactly the source IP address of carrying confirmation message.
Method three, judge that the transmitting terminal ethernet mac address of ARP message judges time identical with receiving terminal end ethernet mac address whether the MAC Address in this ARP has preservation in self outer domain information as networking unit A; If so, the IP address upgrading the networking unit B in self outer domain information is the IP address in this ARP message source field, if not, does not upgrade this IP address information.Although this method also can judge the method for networking unit B whether in the outer domain information of networking unit A as a kind of, whether very reliable.Method three and method two are combined by a kind of safer method exactly: networking unit A first judges whether the MAC Address in the ARP that networking unit B sends has preservation in self outer domain information, ask to networking unit B if send the checking of carrying self-identity information again, then perform step 121 and 122.
Here, the MAC Address of other networking unit is preserved in the outer domain information of networking unit in advance.Such as networking unit A preserves the MAC Address of networking unit B: networking unit A can be made to preserve the MAC Address of networking unit B by the mode of static configuration, networking unit A can also be made dynamically to preserve the MAC Address of networking unit B by the mode of address resolution.
In two interconnected situations of networking unit, there is handling process when changing in the IP address of a networking unit:
Step 21, networking unit send address change message by the session of setting up with foreign lands networking unit, carry in this message this networking unit change after IP address and identity information; This step performs by self changing processing module.
For networking unit A and B, networking unit A and networking unit B is when being in interconnected state, if the IP address of networking unit A changes, networking unit can directly utilize the session connection of current both sides to send address change information.SIP Notify message such as can be used to carry the IP address information after networking unit A change and identity information.This identity information is used for showing to networking unit B oneself identity.
Step 22, networking unit receive the address change message of foreign lands networking unit; judge that whether this address change information send and/or judge whether the identity information of foreign lands networking unit has in the outer domain information being kept at self by this networking unit and the current session connection of foreign lands networking unit, if upgrade the IP address information of foreign lands networking unit; If not, do not process.This step changes processing module by foreign lands and performs.
Such as, the IP address of networking unit B is changed (DHCP lease expires, Dynamic Host Configuration Protocol server has redistributed new IP address to networking unit), and networking unit B such as the mode of networking unit A in step 21 example have sent address change information.After networking unit A receives this address change information; judge that whether this address change information sent by the session connection that networking unit A and foreign lands networking unit B is current and/or judge whether the identity information of foreign lands networking unit B has in the outer domain information being kept at self, if upgrade the IP address information of foreign lands networking unit B; If not, do not process.
Execution of step 22, networking unit A just completes the change of networking unit B IP address in self outer domain information.
In order to prevent the IP address of the networking unit A and networking unit B that are in interconnected state from almost changing simultaneously, in step 22, confirmation message is replied further to networking unit B when networking unit A upgrades the IP address information of networking unit B.If networking unit B does not receive the confirmation message that networking unit A sends in Preset Time, networking unit B sends the message of ARP further, the source MAC of this ARP message is the MAC Address of networking unit B, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of networking unit B, and transmitting terminal IP address is the IP address after networking unit B changes.In the action of networking unit A and B described at this paragraph, the action of networking unit A is changed processing module by the foreign lands of networking unit A and is performed.The action of networking unit B is performed by the processing module that self changes of networking unit B.
In embodiments of the present invention, networking unit A and networking unit B belongs to the entity of equity, and the function networking B that namely networking unit A possesses also possesses; The function networking A that networking unit B possesses also possesses.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. upgrade a method for IP address, the method is applied in the networking unit of cross-domain video surveillance network, it is characterized in that, described method comprises the steps:
This networking unit to obtain self IP address by DHCP mode after reaching the standard grade, and by other networking unit in the informing network of described IP address;
This networking unit sends the message of ARP after reaching the standard grade, the source MAC of this ARP message is the MAC Address of this networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address obtained after this networking unit is reached the standard grade;
This networking unit receives ARP message, judge that whether transmitting terminal ethernet mac address is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if, upgrade the IP address of self outer domain information China and foreign countries territory networking unit, if not, do not upgrade the IP address of self outer domain information foreign lands networking unit.
2. the method for claim 1, judges whether the sender of this ARP message is arranged in self outer domain information and specifically comprises:
This networking unit sends the checking request of carrying self-identity information to foreign lands networking unit;
This networking unit receives the checking request sent after being proved to be successful its identity information of foreign lands networking unit, checks whether the identity information of foreign lands networking unit has in the outer domain information being kept at self.
3. method as claimed in claim 1 or 2, it is characterized in that, when this networking unit IP address change and this networking unit and foreign lands networking unit is current be in interconnected state time, this networking unit sends address change message by the session current with foreign lands networking unit, carries the IP address after the change of this networking unit and identity information in this message;
This networking unit receives the address change message of foreign lands networking unit, judge whether the identity information of foreign lands networking unit has the outer domain information neutralization/that is kept at self or judge that whether this address change information sent by the session that self and foreign lands networking unit are current, if so, in self outer domain information, upgrade the IP address of foreign lands networking unit.
4. method as claimed in claim 3, is characterized in that, replys confirmation message further to foreign lands networking unit when this networking unit upgrades the IP address information of foreign lands networking unit.
5. method as claimed in claim 4, it is characterized in that, this networking unit does not receive the confirmation message that foreign lands networking unit sends in Preset Time, this networking unit sends the message of ARP, the source MAC of this ARP message is the MAC Address of this networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of this networking unit, and transmitting terminal IP address is the IP address after this networking unit changes.
6. one kind upgrades the device of IP address, this device is arranged in the networking unit of cross-domain video surveillance network, it is characterized in that, networking unit to obtain self IP address by DHCP mode after reaching the standard grade, and by other networking unit in the informing network of described IP address, this device comprises:
Self changes processing module, for sending the message of ARP after self networking unit is reached the standard grade, the source MAC of this ARP message is the MAC Address of self networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of self networking unit, and transmitting terminal IP address is the IP address obtained after self networking unit is reached the standard grade;
Processing module is changed in foreign lands, for receiving ARP message, judge that whether transmitting terminal ethernet mac address is identical with receiving terminal ethernet mac address after resolving, if identical, judge whether the sender of this ARP message is arranged in self outer domain information, if so, upgrade the IP address of self networking unit outer domain information China and foreign countries territory networking unit, if not, the IP address of self networking unit outer domain information China and foreign countries territory networking unit is not upgraded.
7. device as claimed in claim 6, is characterized in that, foreign lands are changed processing module and judged whether the sender of this ARP message is arranged in self outer domain information, specifically performs following steps:
The checking request of carrying self-identity information is sent to foreign lands networking unit;
Receive the checking request sent after being proved to be successful the identity information of himself networking unit of foreign lands networking unit, check whether the identity information of foreign lands networking unit has and be kept in the outer domain information of self networking unit.
8. device as claimed in claims 6 or 7, it is characterized in that, self change processing module to be used for self networking unit IP address and to change and self networking unit and foreign lands networking unit is current when being in interconnected state, send address change message by the session current with foreign lands networking unit, in this message, carry the IP address after the change of self networking unit and identity information;
Processing module is changed for receiving the address change message of foreign lands networking unit in foreign lands, judge whether the identity information of foreign lands networking unit has the outer domain information neutralization/that is kept at self networking unit or judge that whether this address change information sent by self networking unit and the current session of foreign lands networking unit, if so, in the outer domain information of self networking unit, upgrade the IP address of foreign lands networking unit.
9. device as claimed in claim 8, is characterized in that, foreign lands are changed processing module and are used for replying confirmation message further to foreign lands networking unit when upgrading the IP address information of foreign lands networking unit.
10. method as claimed in claim 9, it is characterized in that, when self change processing module does not receive the confirmation message of foreign lands change processing module transmission in Preset Time, send the message of ARP, the source MAC of this ARP message is the MAC Address of self networking unit, target MAC (Media Access Control) address is broadcast MAC address, the transmitting terminal ethernet address carried and destination ethernet address are the MAC Address of self networking unit, and transmitting terminal IP address is the IP address after self networking unit changes.
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| CN106850383B (en) * | 2016-12-13 | 2020-10-16 | 浙江宇视科技有限公司 | Domain name transmission method and system |
| CN107864075A (en) * | 2017-09-30 | 2018-03-30 | 深圳市艾特智能科技有限公司 | Intelligent home device IP update methods, system, storage medium and computer equipment |
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