CN105188052A - Method and system for accessing to network, and wireless access point - Google Patents
Method and system for accessing to network, and wireless access point Download PDFInfo
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- CN105188052A CN105188052A CN201510556436.3A CN201510556436A CN105188052A CN 105188052 A CN105188052 A CN 105188052A CN 201510556436 A CN201510556436 A CN 201510556436A CN 105188052 A CN105188052 A CN 105188052A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention relates to a method and system for accessing to a network, and a wireless access point. When user terminal UE enters a second area from a first area, a second access point (AP) creates a mapping relation between an MAC address of the UE and an MAC address of a gateway, wireless signals generated by a first AP cover the first area, and wireless signals generated by the second AP cover the second area; the second AP, according to the mapping relation, determines the MAC address of the gateway when the UE is located at the second area; and the second AP forwards received data sent by the UE to the gateway through the MAC address of the gateway so as to enable the UE to be accessed to the network through the gateway. According to the invention, smooth switching between the APs can be realized, and user experience is improved.
Description
Technical field
The present invention relates to field of wireless communication, more particularly, relate to a kind of method of access network, system and WAP (wireless access point).
Background technology
What wireless this locality forwarded is meant to access wireless terminal, and data directly pass to network from WAP (wireless access point), can't through wireless controller.
Local forwarding is a kind of dispositions method conventional in wireless enforcement, and advantage is lower to the requirement of wireless controller, because wireless controller only bears the purposes of management, does not bear business datum, therefore less to the performance requirement of wireless controller.
But the local major defect forwarded is, accesses terminal when across three layers of roaming, cannot take over seamlessly.Terminal is referred to (English: accesspoint from a WAP (wireless access point) across three layers of roaming, be called for short: when AP) roaming into another wireless access point AP, two wireless access point AP are not at same Vlan (VirtualLocalAreaNetwork, VLAN) in reason be, after terminal switch to new AP, he is originally by DHCP (DynamicHostConfigurationProtocol, DHCP) IP that obtains and gateway or before, but new AP and original AP is not in a Vlan, so terminal will be accessed less than gateway before, online is caused to be interrupted.Client must connect by disconnection of wireless, then reconnects and just can again obtain IP address, so just causes Consumer's Experience very bad.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method of access network, system and WAP (wireless access point) are provided, make user when the internetwork roaming of WLAN (wireless local area network), without the connection between disconnected end and wireless access point AP, realize taking over seamlessly of wireless access point AP, improve Consumer's Experience.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method constructing access network, comprising:
When user terminal UE enters second area from first area, second access point AP creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway, the wireless signal that first access point AP produces covers described first area, and the wireless signal that described 2nd AP produces covers described second area;
Described 2nd AP determines the gateway MAC address of described UE when described second area according to described mapping relations;
The data that the described UE received sends by described 2nd AP, are forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
Preferably, described 2nd AP comprises before creating the mapping relations between the MAC Address of described UE and the MAC Address of gateway: it be the first virtual ip address of distributing of described UE and described WAC is the second virtual ip address that described 2nd AP distributes that described 2nd AP obtains wireless controller WAC, and described first virtual ip address and described second virtual ip address are in same subnet;
Described 2nd AP utilizes described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Described 2nd AP utilizes the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
Described 2nd AP utilizes described local ip address to send the 2nd ARP request, to obtain the MAC Address of described gateway to described gateway.
Preferably, described 2nd AP obtains before wireless controller WAC is the second virtual ip address of described 2nd AP distribution and comprises the steps:
Described WAC creates wireless signal;
Described WAC is the MAC Address that described wireless signal distributes described second virtual ip address and described second virtual ip address;
The MAC Address of described second virtual ip address and described second virtual ip address is issued to a described 2nd AP and described AP by described WAC.
Preferably, described 2nd AP obtains wireless controller WAC is that the first virtual ip address that described UE distributes comprises the steps:
Described UE sends DHCP request to described 2nd AP;
Described 2nd AP receives the DHCP request of described UE, and adds tunnel, and the wireless signal that the DHCP request of described UE is corresponding is described in tunnel, and the DHCP request of described UE is forwarded to described WAC;
Described WAC is that described UE distributes described first virtual ip address according to the DHCP request of described UE.
Preferably, described UE is by after described gateway accessing network, and the process of outgoing data comprises the steps:
Described UE broadcast the 3rd ARP request, obtains the MAC Address of described second virtual ip address;
Described UE utilizes the MAC Address of described second virtual ip address, and by the first Packet Generation to described 2nd AP, wherein, the destination-mac address of the first packet is the MAC Address of described second virtual ip address;
The destination-mac address of described first packet is replaced with the MAC Address of described gateway by described 2nd AP;
Described 2nd AP by described first Packet Generation to described gateway, by described gateway by described first Packet Generation to network.
Preferably, described UE is by after described gateway accessing network, and the process receiving data comprises the steps:
Described gateway receives the second packet of automatic network, and the Target IP of described second packet is described local ip address;
Described gateway broadcasts the 4th ARP asks, and obtains the MAC Address of described 2nd AP;
Described second packet is forwarded to described 2nd AP by described gateway;
The Target IP of described second packet is replaced to described first virtual ip address by described 2nd AP;
Described 2nd AP broadcast the 5th ARP request, obtains the MAC Address of described UE;
Described 2nd AP utilizes the MAC Address of described UE that described second packet is forwarded to described UE.
The present invention also provides a kind of WAP (wireless access point), comprises
Mapping relations creation module, for when user terminal UE enters described second area from described first area, creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway; Wherein, the wireless signal that the first access point AP produces covers described first area, and the wireless signal that the described second unlimited access point AP produces covers described second area;
Gateway MAC determination module, for determining the gateway MAC address of described UE when described second area according to described mapping relations;
Network access module, for the data sent by the described UE received, is forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
Preferably, described WAP (wireless access point) also comprises:
Virtual IP address acquisition module, for obtain wireless controller WAC be described UE distribute the first virtual ip address and described WAC be described 2nd AP distribute the second virtual ip address, described first virtual ip address and described second virtual ip address are in same subnet;
Terminal MAC acquisition module, for utilizing described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Local ip address acquisition module, for utilizing the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
Gateway MAC acquisition module, sends the 2nd ARP request, to obtain the MAC Address of described gateway for utilizing described local ip address to described gateway.
The present invention also provides a kind of system of access network, comprises user terminal UE, gateway, radio controller WAC, also comprises the first access point AP, the second access point AP, and described 2nd AP comprises
Mapping relations creation module, for when user terminal UE enters described second area from described first area, creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway; Wherein, the wireless signal that the first access point AP produces covers described first area, and the wireless signal that described 2nd AP produces covers described second area;
Gateway MAC determination module, for determining the gateway MAC address of described UE when described second area according to described mapping relations;
Network access module, for the data sent by the described UE received, is forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
Preferably, described 2nd AP also comprises
Virtual IP address acquisition module, for obtain wireless controller WAC be described UE distribute the first virtual ip address and described WAC be described 2nd AP distribute the second virtual ip address, described first virtual ip address and described second virtual ip address are in same subnet;
One MAC acquisition module, for utilizing described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Local ip address acquisition module, for utilizing the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
2nd MAC acquisition module, sends the 2nd ARP request, to obtain the MAC Address of described gateway for utilizing described local ip address to described gateway.
Implement the present invention, there is following beneficial effect: when terminal is at the internetwork roaming of WLAN (wireless local area network), when switching to the second WAP (wireless access point) from the first wireless access point AP, according to the mapping relations between the MAC Address of user terminal UE and local gateway MAC Address, make user's terminal UE can find the MAC Address of local gateway smoothly, therefore the wireless connections between the second wireless access point AP and local gateway need not be disconnected again, again the IP of gateway is obtained, the data that the user terminal UE received sends by the second wireless access point AP, this gateway is forwarded to by the MAC Address of local gateway, to make user's terminal UE by this gateway accessing network, realize taking over seamlessly between wireless access point AP, improve Consumer's Experience.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart one of network access method of the present invention;
Fig. 2 is the flowchart 2 of network access method of the present invention;
Fig. 3 is the flow chart 3 of network access method of the present invention;
Fig. 4 is the flow chart four of the method for access network of the present invention;
Fig. 5 is the theory diagram of the system of access network of the present invention;
Fig. 6 is the theory diagram of terminal UE of the present invention;
Fig. 7 is the theory diagram of wireless controller WAC of the present invention;
Fig. 8 is the theory diagram of the present invention second access point AP;
Fig. 9 is the theory diagram of gateway of the present invention.
Embodiment
In first embodiment of network access method of the present invention, as shown in Figure 1, the method that Fig. 1 shows access network comprises the steps:
S12, when terminal UE enters second area from first area, the mapping relations creation module 301 of the 2nd AP creates the mapping relations between the MAC Address of terminal UE and the MAC Address of gateway.
S13, the 2nd AP gateway MAC determination module are according to the gateway MAC address of the mapping relations determination terminal UE between the MAC Address of terminal UE and the MAC Address of gateway when second area.
The data that the terminal UE received sends by the network access module of S14, the 2nd AP3, are forwarded to gateway by the MAC Address of gateway, to make terminal UE 4 by gateway accessing network.
In another embodiment of network access method of the present invention, as shown in Figure 2, the method that Fig. 2 shows access network comprises the steps:
The wireless signal creation module of S1, wireless controller WAC creates wireless signal.
The second virtual ip address distribution module of S2, wireless controller WAC is that this wireless signal distributes the second virtual ip address and MAC Address corresponding to the second virtual ip address.
The virtual IP address of S3, wireless controller WAC1 issues module and the second virtual ip address and MAC Address corresponding to the second virtual ip address is issued to a 2nd AP and AP.
It is the second virtual ip address that the second access point AP distributes that the virtual IP address acquisition module of S4, the second access point AP obtains wireless controller WAC.
The request sending module of S5, terminal UE sends DHCP access request to the 2nd AP.
The DHCP request of the request forward module receiving terminal UE of S6, the 2nd AP, and add tunnel, and the wireless signal that the DHCP request of terminal UE is corresponding is described in tunnel, the DHCP request of terminal UE is forwarded to wireless controller WAC.
The first virtual ip address distribution module of S7, wireless controller WAC is used for according to the DHCP request of terminal UE being that terminal UE distributes the first virtual ip address.
It is the first virtual ip address that terminal UE is distributed that the virtual IP address acquisition module of S8, the 2nd AP obtains wireless controller WAC.
The one MAC acquisition module of S9, the 2nd AP utilizes the first virtual ip address and the second virtual ip address, sends an ARP request, to obtain the MAC Address of terminal UE to terminal UE.
The local ip address acquisition module of S10, the 2nd AP utilizes the MAC Address of terminal UE to send DHCP request to gateway, is that the 2nd AP distributes local ip address to make gateway.Meanwhile, local ip address acquisition module also records gateway.
The 2nd MAC acquisition module of S11, the 2nd AP utilizes local ip address to send the 2nd ARP request, to obtain the MAC Address of gateway to gateway.
S12, when terminal UE enters second area from first area, the mapping relations creation module 301 of the 2nd AP creates the mapping relations between the MAC Address of terminal UE and the MAC Address of gateway.
S13, the 2nd AP gateway MAC determination module are according to the gateway MAC address of the mapping relations determination terminal UE between the MAC Address of terminal UE and the MAC Address of gateway when second area.
The data that the terminal UE received sends by the network access module of S14, the 2nd AP, are forwarded to gateway by the MAC Address of gateway, to make terminal UE by gateway accessing network.
As shown in Figure 3, Fig. 3 shows after terminal UE is by gateway accessing network, and the process of outgoing data comprises the steps:
3rd MAC acquisition module of S15, terminal UE utilizes the second virtual ip address, and broadcast the 3rd ARP request, obtains the MAC Address of the second virtual ip address.
First data transmission blocks of S16, terminal UE utilizes the MAC Address of the second virtual ip address, by the first Packet Generation to the 2nd AP, wherein, the destination-mac address of the first packet is the MAC Address of the second virtual ip address, source IP is the first virtual ip address, and source MAC is the MAC of terminal UE.
The destination-mac address of the first packet is replaced with the MAC Address of gateway by first address replacement module of S17, the 2nd AP, and source IP replaces with local ip address, and source MAC replaces to the MAC Address of the 2nd AP.
Second data transmission blocks of S18, the 2nd AP by the first Packet Generation to gateway, by gateway by the first Packet Generation to network.
As shown in Figure 4, Fig. 4 shows after terminal UE is by gateway accessing network, and the process of receiving network data comprises the steps:
The data reception module of S19, gateway receives the second packet of automatic network, and the Target IP of the second packet is local ip address.
4th MAC acquisition module broadcast the 4th ARP request of S20, gateway, obtains the MAC Address of the 2nd AP.
Second packet is forwarded to the 2nd AP by the 3rd data transmission blocks of S21, gateway.
The Target IP of the second packet is replaced to the first virtual ip address by second address replacement module of S22, the 2nd AP.
5th MAC acquisition module broadcast the 5th ARP request of S23, the 2nd AP, obtains the MAC Address of terminal UE.
4th data transmission blocks of S24, the 2nd AP utilizes the MAC Address of terminal UE that the second packet is forwarded to terminal UE.
Just terminal UE online is completed out-of-date, the process of outgoing data and reception data by above step S15-S24.
In embodiment again of the present invention, provide a kind of system of access network, as shown in Figure 5, this system comprises user terminal UE4, gateway 6, radio controller WAC1, the first access point AP2, the second access point AP3.Wherein, gateway 6 can be arranged in the 2nd AP3.
As shown in Figure 6, terminal UE 4 comprises request sending module, for sending DHCP request to an AP2.
As shown in Figure 7, wireless controller WAC1 comprises wireless signal creation module 11, second virtual ip address distribution module 12, virtual IP address issues module 13, first virtual ip address distribution module 14.
Wireless signal creation module 11 is for creating wireless signal.Such as, the wireless signal of establishment can be WIFI signal.The unlimited signal that wireless signal creation module 11 creates can be one or more.Wireless signal creation module 11 establishment wireless signal after, also for this wireless signal distributes a dhcp address pool.
Second virtual ip address distribution module 12 is for distributing the second virtual ip address and MAC Address corresponding to the second virtual ip address for this wireless signal.Wherein, the gateway IP that the second virtual ip address is given tacit consent to as dhcp address pool, the MAC Address that the second virtual ip address is corresponding is virtual MAC Address.
Virtual IP address issues module 13 for the second virtual ip address and MAC Address corresponding to the second virtual ip address are issued to a 2nd AP3 and AP2.
First virtual ip address distribution module 14 is for being that terminal UE 4 distributes the first virtual ip address according to the DHCP request of terminal UE 4.Here, the first virtual ip address distribution module is that terminal UE 4 distributes the first virtual ip address by dhcp address pool.
As shown in Figure 8, the 2nd AP3 comprises mapping relations creation module 301, gateway MAC determination module 302, network access module 303, virtual IP address acquisition module 304, a MAC acquisition module 305, local ip address acquisition module 306, the 2nd MAC acquisition module 307, request forward module 308.
Mapping relations creation module 301, for when user terminal UE4 enters second area from first area, creates the mapping relations between the MAC Address of terminal UE 4 and the MAC Address of gateway 6; Wherein, the wireless signal that the first access point AP2 produces covers first area, and the wireless signal that the 2nd AP3 produces covers second area.Such as, when the region that terminal UE 4 covers from the WIFI signal of an AP2, the region that the WIFI signal switching to the 2nd AP3 covers, it should be noted that here, the WIFI signal of the one AP2 is identical with the WIFI signal of the 2nd AP3, is that covered region is different.
Gateway MAC determination module 302 is for according to the gateway MAC address of the mapping relations determination terminal UE 4 between the MAC Address of terminal UE 4 and the MAC Address of gateway 6 when second area.
The data of network access module 303 for the terminal UE received 4 being sent, are forwarded to gateway 6 by the MAC Address of gateway 6, to make terminal UE 4 by gateway 6 access network.
Virtual IP address acquisition module 304 for obtain wireless controller WAC1 be terminal UE 4 distribute the first virtual ip address and wireless controller WAC1 be the 2nd AP distribute the second virtual ip address, the first virtual ip address and the second virtual ip address are in same subnet.After virtual IP address acquisition module 304 obtains the first virtual ip address, also the first virtual ip address is sent to terminal UE 4.
One MAC acquisition module 305, for utilizing the first virtual ip address and the second virtual ip address, sends an ARP request, to obtain the MAC Address of terminal UE 4 to terminal UE 4.
Local ip address acquisition module 306 sends DHCP request for utilizing the MAC Address of terminal UE 4 to gateway 6, is that the 2nd AP3 distributes local ip address to make gateway 6.Local ip address acquisition module 306 also can record gateway 6.
2nd MAC acquisition module 307 sends the 2nd ARP request, to obtain the MAC Address of gateway 6 for utilizing local ip address to gateway 6.
Request forward module 308 for the DHCP request of receiving terminal UE4, and adds tunnel, and the wireless signal that the DHCP request of terminal UE 4 is corresponding is described in tunnel, and the DHCP request of terminal UE 4 is forwarded to wireless controller WAC1.Here, the wireless signal that DHCP request that terminal UE 4 sends is corresponding is described in tunnel, that is to say this DHCP request terminal UE 4 by which wireless signal is sent, so that wireless controller WAC1 finds corresponding dhcp address pool to be that terminal UE 4 distributes the first virtual ip address according to this DHCP request.
Terminal UE 4 also comprises the 3rd MAC acquisition module 42, first data transmission blocks 43.
3rd MAC acquisition module 42 is for utilizing the second virtual ip address, and broadcast the 3rd ARP request, obtains the MAC Address of the second virtual ip address.
First data transmission blocks 43 is for utilizing the MAC Address of the second virtual ip address, and by the first Packet Generation to the 2nd AP3, wherein, the destination-mac address of the first packet is the MAC Address of the second virtual ip address.
2nd AP3 also comprises the first address replacement module 309, second data transmission blocks 310.
First address replacement module 309 is for replacing with the MAC Address of gateway 6 by the destination-mac address of the first packet.
Second data transmission blocks 310, for by the first Packet Generation to gateway 6, by gateway 6 by the first Packet Generation to network.
As shown in Figure 9, gateway 6 comprises data reception module 61, the 4th MAC acquisition module 62, the 3rd data transmission blocks 63.
Data reception module 61 is for receiving the second packet of automatic network, and the Target IP of the second packet is local ip address.
4th MAC acquisition module 62, for broadcasting the 4th ARP request, obtains the MAC Address of the 2nd AP3.
3rd data transmission blocks 63 is for being forwarded to the 2nd AP3 by the second packet.
2nd AP3 also comprises the second address replacement module 311, the 5th MAC acquisition module 312, the 4th data transmission blocks 313.
Second address replacement module 311 is for replacing to the first virtual ip address by the Target IP of the second packet.
5th MAC acquisition module 312, for broadcasting the 5th ARP request, obtains the MAC Address of terminal UE 4.
Second packet is forwarded to terminal UE 4 for utilizing the MAC Address of terminal UE 4 by the 4th data transmission blocks 313.
First access point AP2 can be consistent with the second access point AP3.
In sum, after creating wireless signal WIFI by wireless controller WAC1, distribute the second virtual ip address and MAC Address corresponding to the second virtual ip address for this WIFI and be issued to all access point AP, user terminal UE4 sends DHCP request to the 2nd AP3, 2nd AP3 adds tunnel and the wireless signal WIFI that this DHCP request is corresponding is described in tunnel, namely terminal UE 4 by which wireless signal WIFI is sended over, again this DHCP request is sent to wireless controller WAC1, wireless controller WAC1 is that terminal UE distributes the first virtual ip address, and under by the 2nd AP3, the first virtual ip address is issued to terminal UE 4, 2nd AP3 utilizes the first virtual ip address and the second virtual ip address broadcast ARP request simultaneously, obtain the MAC Address of terminal UE 4.
The MAC Address forgery DHCP request that 2nd AP3 recycles terminal UE 4 is sent to gateway 6, obtain the local ip address that gateway 6 distributes for it, recycling local ip address obtains the MAC Address of gateway 6, just can set up the mapping relations between the MAC Address of terminal UE 4 and the MAC Address of gateway 6 afterwards, terminal UE 4, according to this mapping relations access network, sends data to the data of network or reception network.
When terminal UE 4 switches between diverse access point AP, the first virtual ip address obtained is all constant, then access point AP can utilize the first virtual ip address to obtain the MAC Address of terminal UE 4, the MAC Address of recycling terminal UE 4 obtains the MAC Address of gateway 6, two MAC Address are utilized to set up mapping relations, this process does not need user's disconnection of wireless connection again, just can get IP address and the MAC Address of new gateway, make terminal UE 4 re-accessing network, thus terminal UE 4 can realize taking over seamlessly across three layers of roaming between diverse access point AP, promote Consumer's Experience.
Under the present invention does not increase the prerequisite of the performance pressures of wireless controller WAC1, solve the problem across three layers of roaming, and reach the effect identical with concentrating forwarding.
Understandable, above embodiment only have expressed the preferred embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can carry out independent assortment to above-mentioned technical characterstic, can also make some distortion and improvement, these all belong to protection scope of the present invention; Therefore, all equivalents of doing with the claims in the present invention scope and modification, all should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a method for access network, is characterized in that, comprising:
When user terminal UE enters second area from first area, second access point AP creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway, the wireless signal that first access point AP produces covers described first area, and the wireless signal that described 2nd AP produces covers described second area;
Described 2nd AP determines the gateway MAC address of described UE when described second area according to described mapping relations;
The data that the described UE received sends by described 2nd AP, are forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
2. require the method described in 1 according to power, it is characterized in that, described 2nd AP comprises before creating the mapping relations between the MAC Address of described UE and the MAC Address of gateway:
It is the first virtual ip address of distributing of described UE and described WAC is the second virtual ip address that described 2nd AP distributes that described 2nd AP obtains wireless controller WAC, and described first virtual ip address and described second virtual ip address are in same subnet;
Described 2nd AP utilizes described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Described 2nd AP utilizes the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
Described 2nd AP utilizes described local ip address to send the 2nd ARP request, to obtain the MAC Address of described gateway to described gateway.
3. method according to claim 2, is characterized in that, described 2nd AP obtains before wireless controller WAC is the second virtual ip address of described 2nd AP distribution and comprises the steps:
Described WAC creates wireless signal;
Described WAC is the MAC Address that described wireless signal distributes described second virtual ip address and described second virtual ip address;
The MAC Address of described second virtual ip address and described second virtual ip address is issued to a described 2nd AP and described AP by described WAC.
4. method according to claim 2, is characterized in that, it is that the first virtual ip address that described UE distributes comprises the steps: that described 2nd AP obtains wireless controller WAC
Described UE sends DHCP request to described 2nd AP;
Described 2nd AP receives the DHCP request of described UE, and adds tunnel, and the wireless signal that the DHCP request of described UE is corresponding is described in tunnel, and the DHCP request of described UE is forwarded to described WAC;
Described WAC is that described UE distributes described first virtual ip address according to the DHCP request of described UE.
5. method according to claim 3, is characterized in that, described UE is by after described gateway accessing network, and the process of outgoing data comprises the steps:
Described UE broadcast the 3rd ARP request, obtains the MAC Address of described second virtual ip address;
Described UE utilizes the MAC Address of described second virtual ip address, and by the first Packet Generation to described 2nd AP, wherein, the destination-mac address of the first packet is the MAC Address of described second virtual ip address;
The destination-mac address of described first packet is replaced with the MAC Address of described gateway by described 2nd AP;
Described 2nd AP by described first Packet Generation to described gateway, by described gateway by described first Packet Generation to network.
6. method according to claim 3, is characterized in that, described UE is by after described gateway accessing network, and the process receiving data comprises the steps:
Described gateway receives the second packet of automatic network, and the target ip address of described second packet is described local ip address;
Described gateway broadcasts the 4th ARP asks, and obtains the MAC Address of described 2nd AP;
Described second packet is forwarded to described 2nd AP by described gateway;
The Target IP of described second packet is replaced to described first virtual ip address by described 2nd AP;
Described 2nd AP broadcast the 5th ARP request, obtains the MAC Address of described UE;
Described 2nd AP utilizes the MAC Address of described UE that described second packet is forwarded to described UE.
7. a WAP (wireless access point), is characterized in that, comprises
Mapping relations creation module, for when user terminal UE enters described second area from described first area, creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway; Wherein, the wireless signal that the first access point AP produces covers described first area, and the wireless signal that the described second unlimited access point AP produces covers described second area;
Gateway MAC determination module, for determining the gateway MAC address of described UE when described second area according to described mapping relations;
Network access module, for the data sent by the described UE received, is forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
8. WAP (wireless access point) according to claim 7, is characterized in that, described WAP (wireless access point) also comprises
Virtual IP address acquisition module, for obtain wireless controller WAC be described UE distribute the first virtual ip address and described WAC be described 2nd AP distribute the second virtual ip address, described first virtual ip address and described second virtual ip address are in same subnet;
Terminal MAC acquisition module, for utilizing described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Local ip address acquisition module, for utilizing the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
Gateway MAC acquisition module, sends the 2nd ARP request, to obtain the MAC Address of described gateway for utilizing described local ip address to described gateway.
9. a system for access network, comprises user terminal UE, gateway, radio controller WAC, it is characterized in that, also comprises the first access point AP, the second access point AP, and described 2nd AP comprises
Mapping relations creation module, for when user terminal UE enters described second area from described first area, creates the mapping relations between the MAC Address of described UE and the MAC Address of gateway; Wherein, the wireless signal that the first access point AP produces covers described first area, and the wireless signal that described 2nd AP produces covers described second area;
Gateway MAC determination module, for determining the gateway MAC address of described UE when described second area according to described mapping relations;
Network access module, for the data sent by the described UE received, is forwarded to described gateway by the MAC Address of described gateway, to make described UE by described gateway accessing network.
10. the system of access network according to claim 9, is characterized in that, described 2nd AP also comprises
Virtual IP address acquisition module, for obtain wireless controller WAC be described UE distribute the first virtual ip address and described WAC be described 2nd AP distribute the second virtual ip address, described first virtual ip address and described second virtual ip address are in same subnet;
One MAC acquisition module, for utilizing described first virtual ip address and described second virtual ip address, sends an ARP request, to obtain the MAC Address of described UE to described UE;
Local ip address acquisition module, for utilizing the MAC Address of described UE to send DHCP request to described gateway, is that described 2nd AP distributes local ip address to make described gateway;
2nd MAC acquisition module, sends the 2nd ARP request, to obtain the MAC Address of described gateway for utilizing described local ip address to described gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556436.3A CN105188052B (en) | 2015-09-02 | 2015-09-02 | A kind of method, system and the wireless access point of access network |
Applications Claiming Priority (1)
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| CN110891325A (en) * | 2019-12-10 | 2020-03-17 | 新华三大数据技术有限公司 | Tunnel establishment method and device |
| CN114363879A (en) * | 2022-01-24 | 2022-04-15 | 杭州迪普科技股份有限公司 | Roaming processing method and system for wireless terminal |
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| CN110891325B (en) * | 2019-12-10 | 2021-11-23 | 新华三大数据技术有限公司 | Tunnel establishment method and device |
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| CN114363879B (en) * | 2022-01-24 | 2023-06-27 | 杭州迪普科技股份有限公司 | Roaming processing method and system for wireless terminal |
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| CN105188052B (en) | 2018-11-06 |
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