CN1762132A - Mobile router, position management server, mobile network management system, and mobile network management method - Google Patents
Mobile router, position management server, mobile network management system, and mobile network management method Download PDFInfo
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- CN1762132A CN1762132A CNA2004800071961A CN200480007196A CN1762132A CN 1762132 A CN1762132 A CN 1762132A CN A2004800071961 A CNA2004800071961 A CN A2004800071961A CN 200480007196 A CN200480007196 A CN 200480007196A CN 1762132 A CN1762132 A CN 1762132A
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Abstract
When connected to an external network (7), a mobile router (5) checks an address table if a home address is allocated. If it is not allocated, the mobile router derives the address of a position management server from a position management server address table and sends an allocation request message to the position management server (2). The position management server (2) receives an address management table holding addresses to be allocated to each mobile network (4) and the allocation request message sent from the mobile router (5), searches the address management table for an unused address, and sends an allocation permission message to the mobile router (5) to automatically allocate a home address to the mobile router (5).
Description
Technical field
The present invention relates to the mobile network who constitutes by mobile router and portable terminal, the mobile network management method that when this mobile network moves to external network, also can proceed to communicate by letter and mobile network management system.
Background technology
As existing mobile terminal management system, advance standardization by Mobile-IP (Internet Protocol) working group of the IETF of standardization body on the internet (InternetEngineering Task Force).In addition, move, and the mobile network management mode under the whole situation about moving of network, advance standardization by NEMO (Network Mobility) working group of IETF as being not only terminal.As the prior mobile network administrative skill, known technology is for example to have the spy to open disclosed mobile network management technology in the flat 8-237717 communique.
Below, utilize accompanying drawing to describe.
Figure 17 is the figure of the structure of expression prior mobile network management system.Home network 1001 is made of home gateway 1003 that is connected to the internet and location management server 1002, and mobile network 1004 is positioned at the home network 1001 as ownership.The mobile network 1004, are made of the mobile router 1005 and the host node 1006 of the interface of interface that keeps external network and internal network.External network 1007 is made of outside couple in router 1008.Moreover, also there is the communication nodes 1010 that communicates by internet 1009 and mobile network 1004.
At document " Network Mobility (NEMO) Basic Support Protocol " (IETF NEMOWG, drafi-ietf-nemo-basic-support-02.txt, December 2003) in, mobile router 1005 belongs to home network 1001, has the network address " HomePrefix::10 " by the home network prefix HomePrefix of the address of the network integral body of this home network 1001 of expression and own hardware address " 10 " generation.This address is the unique address on the internet.In addition, as the network prefix of mobile network 1004 inside, when supposition had distributed PrefixA, host node 1006 generated network address PrefixA::20 by the hardware address " 20 " of oneself.
When this mobile router 1005 moves, when being connected to certain external network 1007, the outside couple in router 1008 of external network 1007 is distributed to mobile router 1005 with external network prefix ForeignPrefix.Mobile router 1005 will be set at the externally temporary address of network 1007 uses by the outside network address " ForeignPrefix::10 " that external network prefix ForeignPrefix and the hardware address " 10 " of oneself generate.
Afterwards, when the transmission carried out from the communication nodes 1010 that is positioned at the another one network to the packet of mailing to this mobile router 1005, because communication nodes 1010 is not known moving of this mobile router 1005, therefore no matter whether mobile router 1005 is positioned on the home network 1001, at first home network 1001 is sent packet.
When the packet of being mail to mobile router 1005 by communication nodes 1010 is sent to this home network 1001, location management server 1002 on this home network 1001 is caught the grouping of the home address " HomePrefix::10 " of the mobile router of storing 1005, according to the external address " ForeignPrefix::10 " of correspondence, this external network 1007 is transmitted packet.
When by communication nodes 1010 when host node 1006 sends packets, the address " PrefixA::20 " of host node 1006 is sent.The grouping of mailing to this address at first sends to home network 1001, and the routing table according to home gateway keeps sends to the mobile router 1005 as next hop router.But, location management server 1002, catch the grouping of the home address " HomePrefix::10 " mail to mobile router 1005 after, according to the external address " ForeignPrefix::10 " of correspondence, this external network 1007 is transmitted packets.
Like this, in existing data communication, mobile router 1004 has the address of home network 1000 and these two addresses, address of external network 1007, the positional information of location management server 1001 these mobile routers 1004 of management by home network 1000, the forwarding of the line data of going forward side by side grouping, realize can with the corresponding grouping Route Selection of variation of the Address Recognition that moves that is accompanied by mobile router 1004.
And, in the past when router newly is connected to network, by DHCP (Dynamic HostConfiguration Protocol) server automatic IP address allocation, but by this Dynamic Host Configuration Protocol server addresses distributed is general address in the sub-network under this DHCP only, can not adapt to the moving router of image drift and move the situation that the back is connected with another external network like that.Therefore, " home address " of mobile router manually set by the user or must be connected to home network when initial start, need dynamically distribute the address by location management server.
But, have following problem: when what mobile management server was set is not the user with mobile router, but during general service provider, because the manufacturing company of mobile router and ownership node is different, therefore do not preestablish the unit of home address, the network prefix that the user will ask the provider of signing agreement to distribute home address that mobile router uses and mobile network to use must be with manually setting.
Summary of the invention
The objective of the invention is, the home address that provides new mobile router automatically to inquire about oneself, and the mobile network management system that distributes, the mobile router that constitutes these mobile network management systems, location management server and mobile network management method to location management server.
In the mobile network management system that the present invention relates to, mobile router has: the address table that keeps whether distributing home address and temporary address; And in the opportunity that is connected with external network, judge whether to have distributed home address by this address table, when unallocated home address, derive the address of location management server by the location management server address table of the address of holding position management server, and send the address assignment request portion of allocation request message to location management server; Location management server has: the address administration table of each mobile network's address is distributed in maintenance; And after the allocation request message of reception from this mobile router, send the address assignment portion that distributes grant message from the untapped address of address administration table search and to mobile router.
If adopt such structure,, also can automatically inquire about home address, and can communicate to location management server even the mobile router that the user buys need not bother the user under initial condition.
The mobile network's who the present invention relates to management method, its spy is characterised in that: when the mobile network who is made of the mobile router that possesses external interface that is connected with external network and the internal interface that is connected with internal network and one or more terminals that possess the internal interface that is connected with this internal network is moved by home network, the location management server of this mobile network's address is distributed in management, the communication packet that mails to home address is transmitted to the outside network address of mobile destination, mobile router, judge whether to have distributed home address by the addresses distributed table that keeps home address and temporary address, when unallocated home address to location management server request home address and temporary address.
Like this, mobile router judges whether to have distributed home address, when unallocated, by to location management server request home address and temporary address, the mobile network is not positioned under the situation of home network in advance, do not need the labor of the setting of the numerous and diverse address of user yet, can distribute the address of mobile network's integral body.
In addition, the mobile network's who the present invention relates to management method may further comprise the steps: mobile router receives the step of temporary address from external network; Do not obtain at this mobile router under the situation of home address, according to the message of giving this temporary address, to the step of the distribution of the location management server request home address that carries out home address assignment; This location management server is given mobile router with untapped address assignment, and sends the step of addresses distributed to this mobile router; This mobile router receives this home address, sends the step of replying to location management server during login; With when this location management server receives that this is replied, mobile router and home address are associated the step of login.
Like this, by being that opportunity is carried out, can obtain up-to-date address assignment to be connected to external network and to obtain the temporary address.In addition, can obtain address assignment according to request message and to the simple order of the response message of this request message.
In addition, the mobile network management method that the present invention relates to, after mobile router further adds the authentication ID of the distribution of accepting home address, carry out request for allocation to location management server, location management server judges that authentication ID is the authentication ID of management object, carries out the distribution of home address when being management object to mobile router.
Like this, because location management server is only distributed to specific mobile router with home address, therefore can limit subordinate's mobile router.
In addition, the mobile network's who the present invention relates to management method comprises: the step that the 2nd mobile router obtains to the agency of the 1st mobile router request home address of the distribution that receives home address by location management server; The 1st mobile router is to the step of the home address of location management server request broker the 2nd mobile router; Location management server distributes the home address of the 2nd mobile router, and sends to the step of the 1st mobile router; Transmit the step of the home address receive to the 2nd mobile router with the 1st mobile router.
Like this, newly join mobile network's mobile router, before being connected to external network, just can obtain the home address of oneself.
The mobile router that the present invention relates to comprises: the addresses distributed table that keeps home address and temporary address; Judged whether to distribute the address assignment request portion of home address according to described address table; Keep carrying out the location management server address table of address of location management server of the distribution of home address; Sign in to the address login portion of address table with the home address that will receive and temporary address; When address request for allocation portion, when being judged as in this address table unallocated home address, carry out request for allocation to location management server behind the additional temporary address, login portion in address is updated to address table by this location management server home address table that receive, that be assigned with.
Like this, when the mobile network is not positioned at home network in advance, do not need the labor of the setting of the numerous and diverse address of user yet, can distribute the address of mobile network's integral body.
In addition, when the mobile router that the present invention relates to had obtained the temporary address by external network, address assignment request portion carried out request for allocation to location management server.
Like this, can obtain up-to-date address assignment.
In addition, the address assignment request portion of the mobile router that the present invention relates to, further additional accept the authentication ID of home address assignment after, carry out request for allocation to location management server.
Like this, ID discerns mobile router according to authentication, and home address assignment.
In addition, the mobile router that the present invention relates to, also comprise agency proxy requests portion that obtains and the address forwarding portion that transmits the home address that obtains by the location management server agency to location management server request home address, when the request portion of agency when another mobile router on the network receives the request that the agency obtains internally, carry out request for allocation behind the identifier of another mobile router of additional identification, address forwarding portion will be transmitted to another mobile router that request broker obtains by the home address that location management server is received.
Like this, transmit after can enough agencies obtaining the home address of the mobile router that is not connected to external network.
The location management server that the present invention relates to, have: keep distributing to mobile router home address address administration table and receive from after the request for allocation of this mobile router from the untapped address of address administration table search, and send the address assignment portion of the home address that distributes to mobile router.
Like this, request-reply home address and prompting by according to mobile router are not positioned under the situation of home network in advance the mobile network, do not need the labor of the numerous and diverse setting address of user yet, can distribute the address of mobile network's integral body.
In addition, the location management server that the present invention relates to, also have and stored the authentication list that allows the authentication ID of mobile router home address assignment, address assignment portion judges whether the authentication ID of the 1st mobile router of asking home address is consistent with the authentication ID of authentication list, when unanimity, give the 1st mobile router home address assignment, and send home address.
Like this, ID determines mobile router with authentication, can home address assignment.
In addition, the address assignment portion of the location management server that the present invention relates to, when receiving that by the 1st mobile router the reception of home address is replied, the home address of authentication ID and distribution associated store address administration table into, do not allow request for allocation from the new home address of mobile router with same authentication ID.
Like this, can limit home address assignment request from same mobile network.In addition, when the mobile network who distributes breaks down, can not distribute when permitting by receiver address, location management server can detect this address and also not be assigned with, and can prevent wrong address assignment.
In addition, the address assignment portion of the location management server that the present invention relates to, when when the 1st mobile router that distributes home address is received the home address assignment request of the 2nd mobile router, distribute new home address for the 2nd mobile router, and send to the 1st mobile router.
Like this, the proxy requests of the home address of the mobile router that has only authenticated at controlling oneself can home address assignment, so can limit distribution.
In addition, the mobile network management system that the present invention relates to comprises mobile router that the present invention relates to and the location management server that the present invention relates to.
Like this,, do not need the labor of the setting of the numerous and diverse address of user yet, can distribute the address of mobile network's integral body even the mobile network is not positioned under the situation of home network in advance.
According to aforesaid the present invention, the user does not need to do numerous and diverse setting work, and the terminal that just can give mobile router or subordinate is home address assignment automatically.
Description of drawings
Fig. 1 is the frame assumption diagram of the mobile network management system in the embodiments of the present invention 1.
Fig. 2 is the flow chart that the address assignment of the mobile router in the embodiments of the present invention 1 is handled.
Fig. 3 is the flow chart that the address assignment of the location management server in the embodiments of the present invention 1 is handled.
Fig. 4 A is the diagram of the form of the address assignment request message in the expression embodiments of the present invention 1.
Fig. 4 B to Fig. 4 D is the diagram of the form of the address assignment grant message in the expression embodiments of the present invention 1.
Fig. 4 E is the diagram of the form of the address assignment end in the expression embodiments of the present invention 1.
Fig. 5 A to Fig. 5 C is the diagram of setting example of logic of the address table of the mobile router of expression in the embodiments of the present invention 1.
Fig. 6 is the diagram of setting example of logic of the address administration table of the location management server of expression in the embodiments of the present invention 1.
Fig. 7 is the frame assumption diagram of the location management server in the embodiments of the present invention 1.
Fig. 8 is the frame assumption diagram of the mobile router in the embodiments of the present invention 1.
Fig. 9 is the frame assumption diagram of the mobile router in the embodiments of the present invention 2.
Figure 10 is the frame assumption diagram of the mobile network management system in the embodiments of the present invention 2.
Figure 11 is the flow chart that the address assignment of the 2nd mobile router in the embodiments of the present invention 2 is handled.
Figure 12 is the flow chart that the address assignment of the 1st mobile router in the embodiments of the present invention 2 is handled.
Figure 13 is the flow chart that the address assignment of the location management server in the embodiments of the present invention 2 is handled.
Figure 14 A and Figure 14 B are the diagrams of the form of the address assignment request message in the expression embodiments of the present invention 2.
Figure 14 C and Figure 14 D are the diagrams of the form of the address assignment grant message in the expression embodiments of the present invention 2.
Figure 15 A and Figure 15 B are the diagrams of the form of the address assignment end in the expression embodiments of the present invention 2.
Figure 16 is the diagram of setting example of logic of the address administration table of the location management server of expression in the embodiments of the present invention 2.
Figure 17 is the frame assumption diagram of the mobile network management system in the conventional example.
Embodiment
Below, utilize figure that embodiments of the present invention are described.
(execution mode 1)
Fig. 1 is the network frame assumption diagram that comprises the mobile network management system in the embodiments of the present invention 1.
In Fig. 1, home network 1 is made of home gateway 3 that is connected with the internet and location management server 2, the home network 1 that mobile network 4 does not belong in conduct, and move to external network 7.
In addition, mobile network 4 mobile router 5 and the host node 6 that are connect 11 excuse by interface with external network 7 and internal network constitutes.
In addition, external network 7 is made of outside couple in router 8.
Also there is the communication nodes 10 that communicates by internet 9 and mobile network 4.In addition, the communication means of mobile router can be wired, also can be wireless.
In the present embodiment, mainly to describe with the different point of Figure 17 of DESCRIPTION OF THE PRIOR ART.
In Fig. 7, location management server 2 is by constituting with the lower part: as the network IF21 of the network interface of the physics that is used for being connected with home network 1, send and receive the grouping receiving and transmitting part 22 of grouping, generate the grouping generating unit 23 of message, home address and mobile router are associated the address administration table 24 of login, the address assignment portion 25 of the processing when receiving the message from the address assignment of mobile router 5, the authentication ID list 26 of the authentication ID of the address assignment of storage permission login, differentiate the server message analysis unit 27 of the kind that receives message, the location management table 28 of current position of mobile router and the location management portion 29 of current location of management mobile router have been stored.
In addition, in Fig. 8, mobile router 5 is by constituting with the lower part: as the external network IF51 of the network interface of the physics that is used for being connected with external network 7, internal network IF52 as the network interface of the physics that is used for being connected with internal network, send and receive the grouping receiving and transmitting part 53 of grouping, generation is used for the grouping generating unit 54 of the message of address assignment, location management server 2 is carried out the address assignment request portion 55 of the transmitting-receiving processing of the message relevant with address assignment, the address table 56 that keeps home address and fixed address, the location management server address table 57 of the address of holding position management server 2, the user IF58 that location management server address table 57 or address table 56 from the user are carried out address setting, write down the authentication ID recording portion 59 that allows the authentication ID of address assignment, differentiate message parse portion 60 that receives message and the address login portion 61 that logins temporary addresses or home address at address table 56.
Constitute the mobile network management system by these location management servers 2 and mobile router 5.
Utilize accompanying drawing that the action of the mobile network management system of formation is as described above described below.
Fig. 2 is the flow chart that the address assignment of the mobile router 5 in the embodiments of the present invention 1 is handled.Fig. 3 is the flow chart that the address assignment of the location management server 2 in the embodiments of the present invention is handled.Fig. 4 A to Fig. 4 E is the figure of the structure of presentation address allocation request message.Fig. 5 A to Fig. 5 C is the figure of setting example of the logic of the address table 56 that has of expression mobile router 5.Fig. 6 is the figure of setting example of the logic of the address administration table 24 that has of location management server 2.
At first, mobile router 5 is described.
At first, when mobile router 5 is connected to external network 7, receive temporary address " ForeignPrefix::10 " for the moment from the outside couple in router 8 of external network 7, send message parse portion 60 to through grouping receiving and transmitting part 53 by external network IF51.This message parse portion 60 is judged as the message of address login with it, and Notify Address login portion 61.Afterwards, address login portion 61 logins (step S200) with this temporary address of receiving to address table 56.In addition, the hardware address of mobile router 5 is made as " 10 " herein.Shown in Fig. 5 A, the initial state of address table 56 is that temporary address 501, home address 502 and inner prefix 503 all are empty, obtains temporary address 501, like this, becomes the state of Fig. 5 B.
Then, when address login portion 61 had obtained temporary address 501, whether search address table 56 existed the home address (step S201) of oneself.In address table 56, if finish home address assignment to home address 502, termination (step S202) then.
When the angelica address assignment did not finish as yet, address login portion 61 obtained to address assignment request portion 55 request home address.The network address (step S203) of address assignment request portion 55 retrieve position management server 2 from the location management server address table 57 of location management server 2.When also not existing after the retrieval, can urge address input herein, to user IF58 output message from the user.
Afterwards, if the network address of decision location management server 2, then Address requests dispenser 55 indication grouping generating units 54 generate the address assignment request message 400 (step S204) shown in Fig. 4 A.Herein, set in " the transmission destination-address " 401 in the network address, transmission source address 402 of location management server 2 and set the value of having set expression " address assignment request " in " temporary address ", the order 403.In addition, give unique ID of each mobile network when having set among " the authentication ID " 404, the user with mobile network is prenoticed with some ones, and be stored in the authentication ID of authentication ID storage part 59 by user IF58 with provider's label agreement.By this " authentication ID ", location management server 2 can be discerned the grouping from each mobile network.
Afterwards, grouping generating unit 54 sends message 400 to grouping receiving and transmitting part 53, and grouping receiving and transmitting part 53 is judged according to destination address and transmitted grouping (step S205) by external network IF51.
Then, after address assignment request portion 55 sends address assignment request message, set the timer of official hour, set for till the address assignment grant message 410 that receives Fig. 4 B from location management server 2 and wait for reception (step S206).During this period, judge whether overtime (step S207), termination when overtime (step S214).,, in " transmission destination address " 411, set the temporary address herein, set the network address of location management server 2 in " transmission source address " 412 as the address assignment grant message 410 shown in Fig. 4 B.In addition, when location management server 2 has addresses distributed, set the value of expression " address assignment " in the order 413, set the home address of mobile router 5 in the home address 415, set mobile network's inside prefix in the prefix 416.In addition, when having distributed corresponding address, shown in Fig. 4 C, set the value that expression " has assigned " in the order 413, when not having available address in location management server 2 addresses distributed, shown in Fig. 4 D, set the value of expression " zero-address " in the order 413.
Afterwards, when mobile router 5 was received address assignment grant message 410 from location management server 2, address login portion 61 carried out the affirmation (step S208) of the order in the address assignment grant message 410.If the order 413 in the address assignment grant message 410 is " address assignment ", then authenticate the check (step S209) of ID414.When order 413 is not " address assignment ", termination (step S214).
Afterwards, address login portion 61 judges that authentication ID414 is the authentication ID (step S210) of oneself.When not being the authentication ID of oneself, abort process (step S214).When being the authentication ID of oneself, shown in Fig. 5 C, home address 415 and inner prefix 416 that address login portion 61 will distribute to oneself store address table 56 into.
Afterwards, 61 Notify Address request for allocation portions 55 of address login portion set and finish.Address assignment request portion 55 indication grouping generating units 54 generate the address assignment end 420 (step S212) of Fig. 4 E., set the network address of location management server in " the transmission destination address " 421 herein, set the temporary address in " transmission source address " 422, set the value of expression " address assignment end " in the order 423.
Then, grouping receiving and transmitting part 53 sends address assignment end 420 (step S213) to location management server 2.After receiving message, handle and just finish (step S214).
Afterwards, exploring (Neighbor Discovery) by the neighbour who carries out the processing that the general prefix of regulation solves among the IPv6 (Internet Protocol Version 6) handles, 6 pairs of mobile routers of host node 5 carry out the request of network prefix, can determine the address of host node 6 self.Like this, mobile network's integral body can both communicate.
Afterwards, utilize the action flow chart of Fig. 3, the processing when location management server 2 is received address assignment request message 400 describes.
At first, the grouping receiving and transmitting part 22 of location management server 2 receives message by network IF21, and server message analysis unit 27 is differentiated its kind.When the message of receiving is address assignment request message 400, server message analysis unit 27 Notify Address dispenser 25 (step S300).
Then, whether there is the authentication ID that receives in the address assignment portion 25 check authentication ID lists 26, when not existing, adds termination (step S318) as acceptance.
On the other hand, when having authentication ID in the authentication ID list 26, should authenticate ID404 and come search address admin table 24 (step S302) as keyword.The project example of the logic of Fig. 6 presentation address admin table 24.Herein, the address of the terminal of location management is being carried out in " home address " 601 expressions, the network prefix of the internal network 11 under these terminals of " prefix " 602 expression, " temporary address " 603 are illustrated in the address for the moment of the terminal that the external network of mobile destination distributes.Set the authentication ID of the network that is used for having determined to distribute the address in " authentication ID " 604, " sign " 605 represented the state of the distribution of home address.
Afterwards, address assignment portion 25 judges in the home address that distributes whether available address (step S303) is arranged.When not having available address, shown in Fig. 4 D, the order 413 of address assignment grant message 410 is made as " zero-address " (step S304).
Then, address assignment portion 25 indication grouping generating units 23 generate the address assignment License Info 410 (step S305) shown in Fig. 4 D.
Afterwards, grouping generating unit 23 sends to grouping receiving and transmitting part 22 with address assignment grant message 410, and grouping receiving and transmitting part 22 is judged by destination-address, transmits grouping (step S306) by network IF21, and abort process (step S318).
On the other hand, in step S303, when not having available address, address assignment portion 25 judges whether to exist the authentication ID (step S307) identical with the authentication ID604 that meets, if the sign of address administration table 24 605 is " having assigned ", then be judged as the distribution of network that has this authentication ID being finished home address.In addition, if indicate 605 for " distributing ", then be judged as and be in during address assignment handles.These " have assigned " or " distributing " if indicate 605 expressions, then shown in Fig. 4 C, the value 413 of the order of address assignment grant message 410 are made as " address assignment is finished " (step S308).
Then, address assignment portion 25 indication grouping generating units 23 generate the address assignment grant message 410 (step S309) shown in Fig. 4 C.Afterwards, grouping receiving and transmitting part 22 sends this message (step S310) by network IF21, and termination (step S318).
On the other hand, in step S307, when also not having the project that authenticates ID in the address admin table 24 and having available address, address assignment portion 25 sets " address assignment " in order 413, set this home address 415 and inner prefix 416 (step S311) in address assignment grant message 410.
Fig. 4 B represents this address assignment grant message 410., in " home address " 415, set the home address of giving mobile router 5 herein, in " inner prefix " 416, set the network prefix of using in mobile network 4 the internal network 11.
Afterwards, address assignment portion 25 indication grouping generating units 23 generate the address assignment grant message 410 (step S312) shown in Fig. 4 B.
Then, grouping generating unit 23 sends to grouping receiving and transmitting part 22 with address assignment grant message 410, and grouping receiving and transmitting part 22 is judged according to destination-address and transmitted grouping (step S313) by network IF21.
Afterwards, after address assignment portion 25 sends address assignment grant message 410, set the timer of official hour, and standby (step S314) till receiving the address assignment end 420 shown in Fig. 4 C from mobile router 5.During this period, judge whether overtime (step S315), when overtime, address assignment portion 25 is judged as the mobile router that sends the destination can not distribute grant message 410 by receiver address, and addresses distributed in the address administration table 24 is returned to original state (step S317).Termination (step S318) afterwards.
On the other hand, when dispenser 25 receiver addresses in address distribute end 420 (step S314), confirm with " authentication ID " to be whether keyword is consistent with the transmission destination address from " home address " 601 of address administration table 24 retrievals.If consistent, then the sign 605 with address administration table 24 is made as " finishing " (step S316), and termination (step S318).
Handle by carrying out aforesaid address assignment, as shown in Figure 6, distribute, so that host node 6 is that the temporary address of HomePrefix::1, mobile router 5 is ForeignPrefix::10 for PrefixA::20, home address.
Handle by carrying out aforesaid address assignment, the user need not to carry out numerous and diverse setting work, and the host node that can give mobile router or subordinate is setting network address automatically.
(execution mode 2)
Figure 10 is the block diagram of the structure of the network in the expression present embodiment.
In Figure 10, the 1st mobile router 1001 links to each other with the 2nd mobile router 1002 in the mobile network, and this point is different with mobile network in the execution mode 1.The block diagram of Fig. 9 is represented the structure of these the 1st mobile routers 1001 and the 2nd mobile router 1002.
In Fig. 9, the point different with the mobile router in the execution mode 1 of the mobile router in the embodiments of the present invention 2 is: the mobile router in the execution mode 2 has also that agency to other mobile router request home address obtains or is transmitted to the address forwarding portion 92 of the mobile router of request source to the proxy requests portion 91 of the home address of another mobile router of location management server request broker and the home address that mails to another mobile router that will receive.
Below, the action and the effect of the mobile router of such formation described.
At first, when the 1st mobile router is connected to external network for the first time, obtain the home address of oneself, but the action of this moment is identical with mobile router in the execution mode 1.
Then, the 2nd mobile router does not link to each other with external network 7, and is connected to the 1st mobile router 1001 subordinates' internal network 11.Utilize accompanying drawing below, action is at this moment described.
Figure 11 is the flow chart of the home address assignment action of expression the 2nd mobile router.
At first, the 2nd mobile router is as initialization process, and whether the check home address is logined at address table 56 (step S1101).
Shown in the address table 56 that Fig. 5 A represents, when the angelica address area is empty, initialization process portion indication grouping generating unit 54 not shown in the figures sends to internal network (step S1103) by internal network IF52 with RS (Router Selection) message, when not being empty, think and obtain home address, termination (step S1113).This RS message is the message of inquiring about the router that links to each other with internal network, receives that the router of this RS message sends RA (Router Advertisement) message as replying, and notifies the existence of oneself.
Then, initialization process portion waits for the RA message (step S1104) that receives from other mobile routers that are connected to internal network.When not receiving RA message in the stipulated time, be judged as other routers and be not connected to internal network, and termination (step S1113).
Afterwards, when grouping receiving and transmitting part 53 receives RA message by internal network IF52,60 notification agent request portions 91 of message parse portion.Proxy requests portion 91 indication grouping generating units 54 are so that send the address assignment message that the agency of request home address obtains to the mobile router in the transmission source of RA message.Grouping generating unit 54 receives that this indication back generates the address assignment request message shown in Figure 14 A.This address assignment request message has object address 1401, and this point is different with execution mode 1.The mobile router of the distribution of these object address 1401 expression request home address, at this moment, the address that setting is tried to achieve by the prefix of the internal network of the 2nd mobile router.In addition, in sending destination address 401, set the address of the 1st mobile router, in transmission source address 402, set the address (address of the 2nd mobile router) of oneself, setting expression in order 403 is the code of home address assignment request message, sets the authentication ID that oneself sets in authentication ID404.Because this authentication ID uses an authentication ID usually in sub-network, therefore set the ID identical with the 1st mobile router.In addition, when not having this authentication ID, what is not set.
To receiving the action of the 1st mobile router of the agent allocation of request home address after this address assignment request message, utilize Figure 12 to describe herein.
In Figure 12, when the grouping receiving and transmitting part 53 of the 1st mobile router passes through internal network IF52 by the 2nd mobile router receiver address allocation request message, 60 notification agent request portions 91 (step S1201) of message parse portion.
After this notice is received by proxy requests portion 91, indication grouping generating unit 54, so that be that the 2nd mobile router 1002 sends the address assignment request message to location management server 2 request home address assignment, grouping generating unit 54 generates the address assignment request message shown in Figure 14 B.In the object address 1401 of this address assignment request message, set the address of the 2nd mobile router of the distribution of asking home address, the address of desired location management server 2 in sending destination address 401, in transmission source address 402, set the address (address of the 1st mobile router) of oneself, setting expression in order 403 is the code of acting on behalf of the home address assignment request message, if in address assignment request message, set authentication ID from the 2nd mobile router, then in authentication ID404, just set this authentication ID, if do not set, in authentication ID404, just set the authentication ID that oneself sets.
Below, utilizing Figure 13, the processing when location management server 2 is received this address assignment request message by the 1st mobile router 1001 describes.
In Figure 13, step S1300 is to the processing of step S1307, and is identical to the processing of step S307 with step S300 in the execution mode 1 shown in Figure 3.
In step S1307, when having the project identical with authentication ID, in execution mode 1, be considered as distributing home address, in the order 413 of address assignment grant message, set and send (step S308 after address assignment is finished, S309, S310), but in execution mode 2, whether address assignment portion 25 will check is that quantity at the home address of distributing to corresponding authentication ID is with interior (step S1308), when also having the free time, the address that the mobile router of this request for allocation is sent in 24 checks with reference to address administration table judges to be authenticated intact mobile router (step S1309).When being judged as the request of the next mobile router that oneself has authenticated, the 2nd mobile router that 25 pairs in address assignment portion is documented in the object address of the address assignment request message of receiving distributes new home address.That is, address assignment portion 25 in address administration table shown in Figure 16, in the position with authentication ID identical with the 1st mobile router 1001, appends login home address 601, temporary address 603 and indicates 605.The sign of this moment is " distributing ".And it is the address assignment grant message (step S1313) of " in the address assignment " that address assignment portion 25 indication grouping generating units 23 generate order 403.
Afterwards, grouping generating unit 23 generates the address assignment grant message of the form shown in Figure 14 C.This message has object address 1402, this point different with shown in Fig. 4 B.
Below, utilizing Figure 12, the action when receiving the address assignment grant message from this location management server 2 when the 1st mobile router describes.In addition, receive in the wait at this, when not receiving response message in the stipulated time, termination (step S1205).
When the grouping receiving and transmitting part 53 of the 1st mobile router 1001 receives this message (step S1204), 60 notification agent request portions 91 of message parse portion.Proxy requests portion 91 checked object addresses 1401 are the address (step S1206) of the 2nd mobile router, when not being the address of the 2nd mobile router, and termination (step S1204).
On the other hand, when being the address of the 2nd mobile router, check authentication ID404 is the authentication ID (step S1207) of the common use of mobile network under oneself.And when authentication ID be the authentication ID of own network, proxy requests portion 91 indicated the generating units 54 of dividing into groups that the address assignment grant message is sent to the 2nd mobile router.
After grouping generating unit 54 is received this indication, generate the address assignment grant message (step S1208) shown in Figure 14 D.At this moment, grouping generating unit 54 replaces with the internal network address of having set the 2nd mobile router in sending destination address 411, and in transmission source address 412, set the address of the internal network of the 1st mobile router, and transmit the address assignment grant message of receiving by location management server 2.
Afterwards, grouping receiving and transmitting part 53 sends to the 2nd mobile router 1002 (step S1209) by internal network IF52 with this address assignment grant message.Afterwards, wait for the response message (step S1210) that receives from the 2nd mobile router 1002.
Below, utilizing Figure 11, the action when receiving this address assignment grant message from the 1st mobile router 1001 when the 2nd mobile router 1002 describes.
When the grouping generating unit 53 of the 2nd mobile router 1002, when receiving message by external network IF52 (step S1106), it is exactly the address assignment grant message that message parse portion 60 is judged as this message, and Notify Address login portion 61.Address login portion 61 confirms order 403 (step S1108), and the check order is " address assignment " (step S1109).When order is not " address assignment ", termination (step S1113), when being " address assignment ", check authentication ID404 is the authentication ID (step S1110) of the mobile network under oneself.When with own under the identification id of network termination (step S1113) when inconsistent, when identification id was consistent, login portion 61 in address stored home address 415 and inner prefix 416 into the address table (step S1111) identical with the address table shown in the execution mode 1.
Then, the 61 notification agent requests 91 of address login portion are set and are finished.Proxy requests portion 91 indication grouping generating units 54 generate the address assignment end shown in Figure 15 A.This address assignment end has object address 1501, and this point is different with execution mode 1.Herein, in " transmission destination address " 421, set the address of the internal network of the 1st mobile router, in " transmission source address " 422, set the address of the internal network of the 2nd mobile router, in order 423, set the value of expression " address assignment end ", the identification id of mobile network in authentication ID424 under the setting oneself, the address of the internal network of setting oneself (the 2nd mobile router) in object address 1501.Afterwards, grouping receiving and transmitting part 53 sends this address assignment end (step S1112) to the 1st mobile router.Termination (step S1113) afterwards.
Below, utilize Figure 12, the action when the 1st mobile router 1001 is received this address assignment end by the 2nd mobile router 1002 is described.
When the grouping receiving and transmitting part 53 of the 1st mobile router received message, message parse portion 60 resolved the kind of this message, when being the address assignment end (step S1210), and notification agent request portion 91.Proxy requests portion 91 generates the address assignment end (step S1212) shown in Figure 15 B for to this address assignment end of receiving of location management server 2 proxy responses.Herein, proxy requests portion 91, the address of desired location management server in " transmission destination address " 421, in " transmission source address " 422, set the address of the external network of the 1st mobile router, in order 423, set the value of expression " address assignment end ", the identification id of mobile network in authentication ID424 under the setting oneself, the address of the internal network of setting the 2nd mobile router in object address 1501.
Then, grouping receiving and transmitting part 53 sends this address assignment end (step S1213) to location management server.Afterwards, termination (step S1214).
As mentioned above,, when on the mobile network, increasing new mobile router, before being connected to external network, act on behalf of, can automatically carry out the allocation process of home address by another mobile router that has home address according to present embodiment.Moreover, thus, when the mobile router that increases newly is connected to external network, can also provide the Route Selection service.
Utilizability on the industry
As mentioned above, the present invention is to the mobile network that is made of the Mobile routing device with by this mobile network of management The system of mobile network management that the location management server of network consists of is useful, and is suitable for new moving Moving router obtains home address when being connected to outside network.
Claims (13)
1. a mobile network management method, this mobile network's management method, when by the mobile router that possesses external interface that is connected with external network and the internal interface that is connected with internal network, possess mobile network that one or more terminal of the internal interface that is connected with described internal network constitutes when home network has moved, the location management server of described mobile network's address is distributed in management, the communication packet that mails to home address is forwarded to the outside network address of mobile destination, it is characterized in that:
Described mobile router judges by the addresses distributed table that keeps home address and temporary address whether home address has been assigned with, when the angelica address also is not assigned with, to location management server request home address and temporary address.
2. mobile network management method is characterized in that:
May further comprise the steps:
Mobile router receives the step of temporary address from external network;
When described mobile router does not obtain home address, according to the message of having added described temporary address, to the step of the distribution of the location management server request home address of the distribution of carrying out home address;
Described location management server is given described mobile router with untapped address assignment, and sends the step of the home address of having distributed to described mobile router;
Described mobile router receives described home address, sends the step of replying to described location management server during login; With
When described location management server is received described replying, described mobile router and described home address are associated the step of logining.
3. mobile network management method according to claim 2 is characterized in that:
Described mobile router is further additional accepts to carry out to described location management server behind the authentication ID of distribution of home address the request of described distribution;
Described location management server judges whether described authentication ID is the authentication ID of management object, when being management object, carries out the distribution of home address to described mobile router.
4. mobile network management method according to claim 2 is characterized in that:
May further comprise the steps:
The 2nd mobile router is to the 1st mobile router of the distribution that receives home address by location management server, the step that the agency of request home address obtains;
The 1st mobile router is to the step of the home address of described location management server request broker the 2nd mobile router;
Described location management server distributes the home address of the 2nd mobile router, and the step that sends to the 1st mobile router; With
The 1st mobile router is transmitted the step of the home address of receiving to the 2nd mobile router.
5. mobile router is characterized in that:
Comprise:
The addresses distributed table that keeps home address and temporary address;
Judged whether to distribute the address assignment request portion of home address according to described address table;
Keep carrying out the location management server address table of address of location management server of the distribution of home address; With
The address login portion that the home address received and temporary address are signed in to described address table;
When described address assignment request portion is judged as when not giving described address table home address assignment, carry out request for allocation to described location management server behind the additional described temporary address, described address table is updated to described address login portion from described location management server home address that receive, that be assigned with.
6. mobile router according to claim 5 is characterized in that:
In the moment of having obtained described temporary address from external network, described address assignment request portion carries out request for allocation to described location management server.
7. mobile router according to claim 5 is characterized in that:
Described address assignment request portion behind the authentication ID of the further additional distribution of accepting home address, carries out described request for allocation to described location management server.
8. mobile router according to claim 5 is characterized in that:
Also have:
To the proxy requests portion that the agency of described location management server request home address obtains; With
The address forwarding portion of the home address that obtains is acted on behalf of in forwarding from described location management server;
When described proxy requests portion when another mobile router on the network is received the request that described agency obtains internally, carry out described request for allocation behind the identifier of described another mobile router of additional identification, described address forwarding portion will be transmitted to described another mobile router that request broker obtains from the home address that described location management server is received.
9. location management server is characterized in that:
Comprise:
The address administration table of the home address of mobile router is distributed in maintenance; With
After the request for allocation of reception from described mobile router,, and send the address assignment portion of the home address that distributes to described mobile router from the untapped address of described address administration table search.
10. location management server according to claim 9 is characterized in that:
Also have and stored the authentication list that allows to the authentication ID of mobile router home address assignment;
Described address assignment portion judges whether the authentication ID of the authentication ID of the 1st mobile router of request home address and described authentication list is consistent, when unanimity, to the 1st mobile router home address assignment, and sends described home address.
11. location management server according to claim 10 is characterized in that,
When described address assignment portion when the 1st mobile router receives that the reception of home address is replied, the home address of authentication ID and distribution associated store described address administration table into, do not allow request for allocation from the new home address of mobile router with same authentication ID.
12. location management server according to claim 10 is characterized in that,
Described address assignment portion when the 1st mobile router of the home address that distributes is received the request for allocation of home address of the 2nd mobile router, distributes new home address for the 2nd mobile router, and sends to the 1st mobile router.
13. a mobile network management system is characterized in that,
Have:
Mobile router, it comprises: the addresses distributed table that keeps home address and temporary address; Judged whether to distribute the address assignment request portion of home address according to described address table; Keep carrying out the location management server address table of address of location management server of the distribution of home address; And the address login portion that the home address received and temporary address are signed in to described address table; This mobile router, when described address assignment request portion is judged as when not having home address assignment in the described address table, carry out request for allocation to described location management server behind the additional described temporary address, described address table is updated to described address login portion from described location management server home address that receive, that be assigned with; With
Location management server, it comprises: the address administration table of the home address of mobile router is distributed in maintenance; And receive request for allocation from described mobile router, from the untapped address of described address administration table search, and the home address that distributes is sent to the address assignment portion of described mobile router.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003134110 | 2003-05-13 | ||
| JP1341102003 | 2003-05-13 | ||
| JP138221/2004 | 2004-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1762132A true CN1762132A (en) | 2006-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800071961A Pending CN1762132A (en) | 2003-05-13 | 2004-05-12 | Mobile router, position management server, mobile network management system, and mobile network management method |
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| Country | Link |
|---|---|
| CN (1) | CN1762132A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107182104A (en) * | 2007-03-23 | 2017-09-19 | 夏普株式会社 | Mobile communication terminal and location management device |
-
2004
- 2004-05-12 CN CNA2004800071961A patent/CN1762132A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107182104A (en) * | 2007-03-23 | 2017-09-19 | 夏普株式会社 | Mobile communication terminal and location management device |
| CN107182104B (en) * | 2007-03-23 | 2021-03-12 | 夏普株式会社 | Mobile communication terminal and position management device |
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