CN106254407A - The method and device that a kind of home network service is shared - Google Patents
The method and device that a kind of home network service is shared Download PDFInfo
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- CN106254407A CN106254407A CN201510328809.1A CN201510328809A CN106254407A CN 106254407 A CN106254407 A CN 106254407A CN 201510328809 A CN201510328809 A CN 201510328809A CN 106254407 A CN106254407 A CN 106254407A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2582—NAT traversal through control of the NAT server, e.g. using universal plug and play [UPnP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
- H04L12/4645—Details on frame tagging
- H04L12/465—Details on frame tagging wherein a single frame includes a plurality of VLAN tags
Abstract
The invention discloses the method and device that a kind of home network service is shared, described method includes: the home router in home network receives the multicast searching request for the service of searching for that its lower UPNP service equipment hung is initiated；Described home router is by acting on behalf of described multicast searching request, and in each VLAN at its place, search services；Service search response to the UPNP service equipment initiating described multicast searching request.The present invention utilizes UPNP technology, is realized service search and the control of whole home network between home router by multicast message.
Description
Technical field
The present invention relates to UPnP (Universal Plug and Play, UPNP) route with domestic
Device field, the method and device shared particularly to a kind of home network service.
Background technology
At present, home router not only provides a user with basic network function, such as network address translation
(Network Address Translation, NAT) and flow-control, and general all from UPNP
Function, user can select to open or close to determine whether to enable UPNP function.By application UPNP
Function, can find the service of all support UPNP in family lan, including printer, media play,
And the remote control etc. of intelligent appliance.
UPNP protocol suite uses SSDP (Simple Service Discovery
Protocol, SSDP) carry out the discovery that services, use multicast to carry out the lookup serviced.In home router,
The forwarding of multicast is not supported that L3 forwards and (is i.e. replicated the data of multicast source by IP address, then forward
To each multicast interface), and support that L2 forwards (i.e. for being in same void with the interface of receiving multicast data
Intend other multicast interface of LAN (Virtual Local Area Network, VLAN), by chip controls
Described multicast packet directly replicates forwarding, does not transfer to central processing unit (the Central Processing of router
Unit, CPU) process).It is to say, on domestic router device, can only enter in same VLAN
The service search of row UPNP.
Therefore, if home router divides multiple VLAN, or there is multi-stage router series connection, then use
UPNP will be unable to search and control all of UPNP service equipment in whole home network.
Summary of the invention
It is an object of the invention to provide the method and device that a kind of home network service is shared, can preferably solve
The problem searched in home network and control all UPNP equipment.
According to an aspect of the invention, it is provided a kind of method that home network service is shared, including:
Home router in home network receive that its lower UPNP service equipment hung initiates for the service of searching for
Multicast searching request；
Described home router, by acting on behalf of described multicast searching request, is searched in each VLAN at its place
Rope services；
Service search response to the UPNP service equipment initiating described multicast searching request.
Preferably, described home router is by acting on behalf of described multicast searching request, each virtual at its place
The step searching for service in LAN includes:
Described home router judges that whether its interface incoming interface with described multicast search message is same virtual
LAN；
If the incoming interface of the interface of described home router and described multicast search message is at same VLAN,
Then via described interface, multicast is searched for message and be forwarded to other UPNP equipment that described virtual local area is off the net；
If the interface of described home router and described multicast search for the incoming interface of message not at same virtual local area
Net, then according to the configuration attribute of described interface place VLAN, be forwarded to institute by described multicast searching request
State the VLAN at interface place.
Preferably, if described configuration attribute is for connection to the attribute of home network, then please by the search of described multicast
After the internal address as source address asked is revised as outer net address, it is forwarded to the virtual local area at described interface place
Net.
Preferably, described by the service searched response to the UPNP service initiating described multicast searching request
The step of equipment includes:
Receive other UPNP service equipment and respond described multicast searching request and including of sending by mode of unicast
The clean culture response message of device address and COS, described clean culture response message includes service type information and carries
Address information for the UPNP service equipment of service；
Described clean culture response message is sent to initiate the UPNP service equipment of described multicast searching request.
Preferably, if being used for receiving the interface of described clean culture response message and the incoming interface of described multicast searching request
Not at same VLAN, then the outer net address as destination address of described clean culture response message is revised
After internal address, it is forwarded to initiate the UPNP service equipment of described multicast searching request.
According to a further aspect in the invention, it is provided that a kind of home network service share device, including:
Acquisition request module, initiates for receiving the UPNP service equipment hung under home router in home network
Be used for searching for the multicast searching request of service；
Service search module, for by acting on behalf of described multicast searching request, in each void at home router place
Intend search service in LAN；
Request-reply module, services response to the UPNP initiating described multicast searching request for will search
Service equipment.
Preferably, described service search module judges that whether the incoming interface of its interface and described multicast search message exists
Same VLAN, if the interface of described home router and described multicast search for the incoming interface of message same
VLAN, then search for multicast message via described interface and be forwarded to off the net other of described virtual local area
UPNP equipment, otherwise according to the configuration attribute of described interface place VLAN, please by the search of described multicast
Seek the VLAN being forwarded to described interface place.
Preferably, if described configuration attribute is for connection to the attribute of home network, the most described service search module
After the internal address as source address of described multicast searching request is revised as outer net address, be forwarded to described in connect
The VLAN at mouth place.
Preferably, described request-reply module receives other UPNP service equipment by described in mode of unicast response
Multicast searching request and the clean culture response message including device address and COS that sends, and by described clean culture
Response message is sent to initiate the UPNP service equipment of described multicast searching request, wherein, described clean culture response
Message includes service type information and provides the address information of the UPNP service equipment serviced.
Preferably, if being used for receiving the interface of described clean culture response message and the incoming interface of described multicast searching request
Not at same VLAN, the most described request-reply module using described clean culture response message as destination
After the outer net address of location is revised as internal address, the UPNP service being forwarded to initiate described multicast searching request sets
Standby.
Compared with prior art, the beneficial effects of the present invention is:
The present invention utilizes UPNP technology, by multicast searching request (i.e. multicast message) between home router
Realize service search and the control of whole home network.
Accompanying drawing explanation
Fig. 1 is the home router schematic diagram that the embodiment of the present invention provides；
Fig. 2 is the method block diagram that the home network service that the embodiment of the present invention provides is shared；
Fig. 3 is the device block diagram that the home network service that the embodiment of the present invention provides is shared；
Fig. 4 is the home network networking schematic diagram that the embodiment of the present invention provides；
Fig. 5 is to carry out, based on networking diagram shown in Fig. 4, the flow chart that home network service is shared.
Detailed description of the invention
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, it will be appreciated that described below
Preferred embodiment be merely to illustrate and explain the present invention, be not intended to limit the present invention.
The present invention is based on UPNP technology, it is achieved home network service is shared, including home router, UPNP
Protocol suite and NAT conversion, wherein:
Home router is to access the router of public network in home network.In home network interconnective
All-router equipment (i.e. home router), refers generally to low end router equipment, does not include switch device.
Fig. 1 is the home router schematic diagram that the embodiment of the present invention provides, as it is shown in figure 1, this home router is single
Arm router, carries out NAT conversion thereon, say, that the NAT conversion in home router is normally applied
In router on a stick, it divides two different VLAN, i.e. wide area network (Wide Area Network, WAN)
With LAN (Local Area Network, LAN).Hang distinct device under in LAN region, divide for each equipment
Join internal address (i.e. IP address of internal network), when the equipment in LAN region accesses outer net service, route at domestic
Carry out NAT conversion on device, be converted into wan interface address (outer net address, outer net IP address).
UPNP protocol suite is mainly used in the intelligent interconnection intercommunication of the equipment that realizes so that office, family and other
Public place can build the network environment of the mutual UNICOM of equipment easily.UPNP is to realize smart machine end to arrive
The structure that end network connects, is also that a kind of framework is at transmission control protocol (Transmission Control
Protocol, TCP)/internet protocol (Internet Protocol, IP) and HTML (Hypertext Markup Language)
On (Hyper Text Transfer Protocol, HTTP) technology, distributed, open network knot
Structure so that the equipment room transmission in networking controls data.UPNP technology achieves control point, equipment kimonos
The support of communication between business, and the also use extensible markup language (Extensible of equipment and related service
Makup Language, XML) define and announce out.By using UPNP, equipment can be dynamically added
Network, and automatically obtain an IP address, announce its ability to other equipment or know other equipment
Existing and service, all these processes are all automatically performed, and hereafter equipment can communication directly with one another.
The work process of described UPNP is divided into 6 steps:
(1) addressing (Addressing)
Equipment obtains an IP address, and DHCP (Dynamic Host is passed through in described IP address
Configuration Protocol, DHCP) or manual configuration or Auto-IP mode obtain.
(2) (Discovery) is found
After an equipment is added to network, UPNP finds other control that agreement allows this equipment on network
Point processed (Control Point, CP) notice (advise) one's own service.Equally, when a CP quilt
After adding network to, UPNP finds that agreement allows equipment available on this CP search network；
(3) (Description) is described
The details of equipment (Device) comprise physical description and service describing, obtain one by HTTP
The data of XML structure.
(4) (Control) is controlled
Use the false proof agreement of simple object (Simple Object Access Protocol, SOAP)
(HTTP/TCP), complete between CP and each Device is mutual.
(5) event (Eventing)
Use the common event notification architecture (Generic Event Notification Architecture, GENA)
Agreement (HTTP/TCP), completes subscription and the propelling movement of device events message, for ensureing reliability, therefore uses TCP
Transmission；The propelling movement of event also has multicast (UDP), i.e. UDP multicast.
(6) (Presentation) is expressed
UPNP does not define the content of Presentation, manufacturer's self-defining equipment html page.
The present invention realizes lookup and the control of service between multi-level NAT in home network based on UPNP technology, with reality
Now service is shared.On the 2nd step of the workflow of above-mentioned UPNP, the discovery i.e. serviced (Dissovery) rank
Section, uses SSDP agreement (UDP), completes equipment search with multicast (multicast), with clean culture (unicast)
(UDP) search of CP is responded.
The said equipment is for providing the UPNP service equipment of service, such as printer and player etc..
Fig. 2 is the method block diagram that the home network service that the embodiment of the present invention provides is shared, as in figure 2 it is shown, step
Suddenly include:
Step S101: the home router in home network receives the use that its lower UPNP service equipment hung is initiated
Search for the multicast searching request of service.
Step S102: described home router is by acting on behalf of described multicast searching request, in each void at its place
Intend search service in LAN.
Specifically, described home router judges that whether the incoming interface of its interface and described multicast search message exists
Same VLAN, if the interface of described home router and described multicast search for the incoming interface of message same
VLAN, the most all at VLAN1, then searches for message via described interface by multicast and is forwarded to described VLAN1
Under other UPNP equipment；If the interface of described home router searches for the incoming interface of message not with described multicast
Incoming interface 1 at same VLAN, such as message exists at VLAN1, another interface 2 of home router
VLAN2, then according to the configuration attribute of interface 2 place VLAN2, be forwarded to interface by described multicast searching request
The VLAN2 at 2 places.
Further, if described configuration attribute is for connection to the attribute of home network, then described multicast is searched for
After the internal address as source address of request is revised as outer net address, it is forwarded to the virtual office at described interface place
Territory net, such as, be forwarded to the VLAN2 at interface 2 place.If described configuration attribute is for connection to the attribute of public network,
The most do not forward described multicast searching request.
Step S103: service search response to the UPNP service equipment initiating described multicast searching request.
Specifically, receive other UPNP service equipment respond described multicast searching request by mode of unicast and
The clean culture response message including device address and COS sent, is sent to described clean culture response message
Rise described multicast searching request UPNP service equipment, described clean culture response message include service type information and
The address information of the UPNP service equipment of service is provided.
Further, if be used for receiving the interface of described clean culture response message and described multicast searching request enter to connect
Mouthful not at same VLAN, such as, the interface 2 receiving described clean culture response message is in VLAN2,
And the message incoming interface of described multicast searching request is in VLAN1, then using described clean culture response message as mesh
The outer net address of address be revised as internal address after, be forwarded to initiate the UPNP clothes of described multicast searching request
Business equipment..
Fig. 3 is the device block diagram that the home network service that the embodiment of the present invention provides is shared, as it is shown on figure 3, bag
Include acquisition request module 10, service search module 20 and request-reply module 30.
Acquisition request module 10 is initiated for receiving the UPNP service equipment hung under home router in home network
Be used for searching for the multicast searching request of service.Such as, its lower extension is received via the interface 1 of home router
In the multicast searching request of the UPNP service equipment of VLAN1, and cache described multicast searching request.
Service search module 20 for by acting on behalf of described multicast searching request, each at home router place
Search service in VLAN.Such as, service search module 20 judges that its a certain interface is searched with described multicast
Whether the incoming interface of rope message is at same VLAN, if the interface of described home router is searched with described multicast
Multicast at same VLAN, is then searched for message via described interface and is forwarded to described by the incoming interface of rope message
Other UPNP equipment that virtual local area is off the net, otherwise according to the configuration attribute of described interface place VLAN,
Described multicast searching request is forwarded to the VLAN at described interface place.Further, if described configuration
Attribute is for connection to the attribute of home network, and the most described service search module is by the work of described multicast searching request
After being revised as outer net address for the internal address of source address, it is forwarded to the VLAN at described interface place.If
Described configuration attribute is for connection to the attribute of public network, does not the most forward described multicast to search for message.
Request-reply module 30 services response to the UPNP initiating described multicast searching request for will search
Service equipment.Specifically, request-reply module 30 receives other UPNP service equipment by mode of unicast sound
Should described multicast searching request and the clean culture response message including device address and COS that sends, and by institute
State clean culture response message and be sent to initiate the UPNP service equipment of described multicast searching request, wherein, described list
Broadcast response message include service type information and the address information of the UPNP service equipment serviced is provided.Wherein,
If the incoming interface being used for receiving the interface of described clean culture response message with described multicast searching request not same
VLAN, the most described request-reply module is using the outer entoilage as destination address of described clean culture response message
After internal address is revised as in location, it is forwarded to initiate the UPNP service equipment of described multicast searching request.
The home router serving as UPNP control point services request (i.e. group at the multicast receiving SSDP
Broadcast searching request) time, this request can be cached, and oneself act on behalf of this multicast service request, for
Different VLAN, such as WAN and LAN that home router divides, the residing network of search, result set will be arranged,
Respond the service request of original caching again, namely realize for specific multicast message, complete a proxy requests
Process.
Fig. 4 is the home network networking schematic diagram that the embodiment of the present invention provides, as shown in Figure 4.
Embodiment 1
When initiating the request of multicast from a upper node router (router A), router A receives SSDP
Multicast searching request message, it is judged that the VLAN attribute of self router, by its message on corresponding interface turn
Send out.When router B receives the request message that router A forwards, according to the VLAN attribute of self router,
Its message is forwarded on corresponding interface.Router B receives answer message (the i.e. clean culture response report of each interface
Literary composition), replied to router A.Router A receives the answer message of each interface, is transmitted to request message
Incoming interface.Specifically, step includes:
Step 1, when the eth1 interface of router A receive down hang preparation come SSDP multicast discovery
Message (i.e. multicast searching request), source IP is 192.168.1.10, and purpose IP is multicast IP
239.255.255.250, port numbers is 1900, and the exchange chip of router A turns according to the multicast port of L2
Deliver, according to the tag (VLAN0) of message incoming interface eth1 place VLAN, this multicast discovery is reported
Literary composition forwards on each interface between the VLAN of same tag (VLAN0).
Step 2, the VLAN (VLAN1) of different tag of router A, if the needs that E-Packet are according to VLAN
Configuration attribute judge.If the WAN mouth of router A is at VLAN1, then obtain the basic configuration of WAN mouth
Attribute, it is assumed that household internal router WAN network is configured to PPPOP etc., it is believed that this interface is connected to public network,
Need not forwarding multicasting discovery message, the most do not forward this multicast discovery message.
Step 3, router B receive multicast discovery message from WAN mouth (192.168.1.100),
Also according to the tag (vlan1) of incoming interface WAN place vlan, by this multicast discovery message, same
Between one tag (VLAN1), (general VLAN1 network divides only mono-interface of WAN to the forwarding of each interface, so seeing
Less than repeating process).
Step 4, the VLAN (VLAN0) of different tag of router B, belong to according to the configuration of the member of its VLAN
Property judge, for DHCP or static configuration, regard it as being connected with home network, need at this VLAN
Between (LAN) carry out the forwarding of multicast discovery message.Router B turns on eth0 Yu eth1 interface
Send out multicast discovery message.Router B judges self route table items, if receiving multicast discovery
Message incoming interface is default gateway interface, does not the most revise source IP address in multicast message (192.168.1.10),
Directly replicate and forward.
Step 5, router B wait each interface response answer message (i.e. clean culture response message), under hang
The standby search condition meeting this multicast discovery message, such as the 192.168.2.11 under router B.This sets
Standby meeting respond this multicast discovery message with clean culture response message.Router B is according to self routing table, nothing
192.168.1.10 main frame, forwards this message according to default gateway, arrives the eth0 interface of router A.
The clean culture response message received on eth0 interface and other interface eth3 are received by step 6, router A
Clean culture response message, according to the destination address 192.168.1.10 of clean culture response message, be forwarded to described group
Broadcast the incoming interface eth1 interface of search message.
So far, the search procedure once serviced terminates.On the lower extension control point of eth1, get route
Service on device A interface direct-connected device, has the most also got the service on router B interface direct-connected device.
Embodiment 2
Initiate the request of multicast from low node router, the step of concrete search service includes:
Step 1, when the eth1 interface of router B receive down hang preparation come SSDP multicast discovery
Message (i.e. multicast searching request), source IP is 192.168.2.11, and purpose IP is multicast IP
239.255.255.250, port numbers is 1900, and the exchange chip of router B turns according to the multicast port of L2
Deliver, according to the tag (VLAN 0) of message incoming interface eth1 place VLAN, by this multicast discovery
Message forwards on each interface between the VLAN of same tag (VLAN 0).
Step 2, the VLAN (VLAN 1) of different tag of router B, if forward described message to need root
Judge according to the configuration attribute of VLAN.If the WAN mouth place VLAN1 of router B, then obtain WAN mouth
Basic configuration attribute, the network attribute of WAN be DHCP obtain or static configuration, then forward this IP, with
Time the ip address, source (192.168.2.11) in multicast discovery message replaced with NAT conversion after
IP address, or the IP address (192.168.1.100) of default gateway.
Step 3, router A receive multicast discovery message from eth0, also according to incoming interface eth0
The tag (v VLAN 0) of place VLAN, by this multicast discovery message between same tag (VLAN0)
Each interface forwards (now eth1, eth2 send this multicast discovery message).
Step 4, the VLAN (VLAN 1) of different tag of router A, according to the configuration of the member of its VLAN
Attribute judges, if the configuration attributes such as PPPOE, it is assumed that it is connected to public network, does not the most carry out multicast
The forwarding of discovery message.
Step 5, router A wait each interface response answer message (i.e. clean culture response message), under hang
The standby search condition meeting this multicast discovery message, such as the 192.168.1.10 under router A.This sets
Standby meeting respond this multicast discovery message with clean culture response message, and now purpose IP of response message is
192.168.1.100, source IP is 192.168.1.10.Router A, according to self routing table, finds purpose
IP place interface eth0 forwards this message, arrives the wan interface of router B.
Step 6, router B receive clean culture response message from wan interface, according to sending multicast before
The entry of discovery message, finds the source IP of the original multicast discovery message of record, by this clean culture
Purpose IP of response message is revised as the IP address of NAT conversion, according to routing table lookup to corresponding interface
Eth1, forwards this clean culture response message.
So far, the search procedure once serviced terminates.On the lower extension control point of eth1, get route
Service on device B interface direct-connected device, has the most also got the service on router A interface direct-connected device.
Fig. 5 is to carry out, based on networking diagram shown in Fig. 4, the flow chart that home network service is shared, as it is shown in figure 5,
Hang host A and host B under router A, under router B, hang host A ' and host B ', concrete steps bag
Include:
Step 1, router A receive its lower multicast search message (i.e. multicast searching request) hanging host B initiation；
Described multicast search message is forwarded to its lower another host A hung by step 2a, router A；
Described multicast search message is forwarded to connected router B by step 2b, router A；
Described multicast search message is forwarded to its lower host A hung by step 2c, router B '；
Described multicast search message is forwarded to its lower host B hung by step 2d, router B '；
Step 3a, router A receive its lower clean culture hanging host A response described multicast search message and respond
Response message；
Step 3c, router B receive and hang host A under it ' respond described multicast search message and the clean culture responded
Response message；
Step 3d, router B receive and hang host B under it ' respond described multicast search message and the clean culture responded
Response message；
Step 4c, router A receiving router B forward from host A ' clean culture response message；
Step 4d, router A receiving router B forward from host B ' clean culture response message；
Step 5c, router A are by host A ' clean culture response message be transmitted to host B；
Step 5d, router A are by host B ' clean culture response message be transmitted to host B.
In sum, the present invention has following technical effect that
The present invention is by adding UPNP protocol function, it is achieved home router is for the agency of multicast message, real
Now can search all specified services in whole home network by the lookup at a UPNP control point.
Although above the present invention being described in detail, but the invention is not restricted to this, the art technology
Personnel can carry out various amendment according to the principle of the present invention.Therefore, all amendments made according to the principle of the invention,
All should be understood to fall into protection scope of the present invention.
Claims (10)
1. the method that a home network service is shared, it is characterised in that including:
Home router in home network receives what its lower UPnP UPNP service equipment hung was initiated
It is used for the multicast searching request of service of searching for；
Described home router, by acting on behalf of described multicast searching request, is searched in each VLAN at its place
Rope services；
Service search response to the UPNP service equipment initiating described multicast searching request.
Method the most according to claim 1, it is characterised in that described home router is by agency
Described multicast searching request, the step searching for service in each VLAN at its place includes:
Described home router judges that whether its interface incoming interface with described multicast search message is same virtual
LAN；
If the incoming interface of the interface of described home router and described multicast search message is at same VLAN,
Then via described interface, multicast is searched for message and be forwarded to other UPNP equipment that described virtual local area is off the net；
If the interface of described home router and described multicast search for the incoming interface of message not at same virtual local area
Net, then according to the configuration attribute of described interface place VLAN, be forwarded to institute by described multicast searching request
State the VLAN at interface place.
Method the most according to claim 2, it is characterised in that if described configuration attribute is for connection to
The attribute of home network, then be revised as outer entoilage using the internal address as source address of described multicast searching request
Behind location, it is forwarded to the VLAN at described interface place.
Method the most according to claim 3, it is characterised in that described responds the service searched
The step giving the UPNP service equipment initiating described multicast searching request includes:
Receive other UPNP service equipment and respond described multicast searching request and including of sending by mode of unicast
The clean culture response message of device address and COS, described clean culture response message includes service type information and carries
Address information for the UPNP service equipment of service；
Described clean culture response message is sent to initiate the UPNP service equipment of described multicast searching request.
Method the most according to claim 4, it is characterised in that if being used for receiving described clean culture response report
The incoming interface of interface and the described multicast searching request of literary composition not at same VLAN, then should by described clean culture
Answer after the outer net address as destination address of message is revised as internal address, be forwarded to initiate the search of described multicast
The UPNP service equipment of request.
6. the device that a home network service is shared, it is characterised in that including:
Acquisition request module, initiates for receiving the UPNP service equipment hung under home router in home network
Be used for searching for the multicast searching request of service；
Service search module, for by acting on behalf of described multicast searching request, in each void at home router place
Intend search service in LAN；
Request-reply module, services response to the UPNP initiating described multicast searching request for will search
Service equipment.
Device the most according to claim 6, it is characterised in that described service search module judges that it connects
Mouthful search for the incoming interface of message whether at same VLAN with described multicast, if the connecing of described home router
Mouthful with described multicast search message incoming interface at same VLAN, then via described interface by multicast search
Message is forwarded to other UPNP equipment that described virtual local area is off the net, otherwise according to described interface place virtual office
The configuration attribute of territory net, is forwarded to the VLAN at described interface place by described multicast searching request.
Device the most according to claim 7, it is characterised in that if described configuration attribute is for connection to
The attribute of home network, the most described service search module is using the Intranet as source address of described multicast searching request
After outer net address is revised as in address, it is forwarded to the VLAN at described interface place.
Device the most according to claim 8, it is characterised in that described request-reply module receives other
UPNP service equipment responds described multicast searching request and send include device address kimonos by mode of unicast
The clean culture response message of service type, and be sent to initiate described multicast searching request by described clean culture response message
UPNP service equipment, wherein, described clean culture response message includes service type information and provides the UPNP of service
The address information of service equipment.
Device the most according to claim 9, it is characterised in that if being used for receiving described clean culture response report
The incoming interface of interface and the described multicast searching request of literary composition not at same VLAN, the most described request-reply
After the outer net address as destination address of described clean culture response message is revised as internal address by module, it is forwarded to
Initiate the UPNP service equipment of described multicast searching request.
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| CN201510328809.1A CN106254407B (en) | 2015-06-15 | 2015-06-15 | Method and device for sharing home network service |
| PCT/CN2016/078595 WO2016202056A1 (en) | 2015-06-15 | 2016-04-06 | Home network service sharing method and apparatus |
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| CN201510328809.1A CN106254407B (en) | 2015-06-15 | 2015-06-15 | Method and device for sharing home network service |
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| CN106254407B (en) | 2020-09-25 |
| WO2016202056A1 (en) | 2016-12-22 |
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