CN1571383A - A method for implementing campus network - Google Patents
A method for implementing campus network Download PDFInfo
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- CN1571383A CN1571383A CN 03178392 CN03178392A CN1571383A CN 1571383 A CN1571383 A CN 1571383A CN 03178392 CN03178392 CN 03178392 CN 03178392 A CN03178392 A CN 03178392A CN 1571383 A CN1571383 A CN 1571383A
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Abstract
The invention relates to a method to realize school network. It divides the inner school network into several sub-networks, and adopts ISP/NSP server to manage the sub-networks according requests. The sub-networks are accessed to Internet and ISP/NSP server by BAS. And the networks, corresponding to the different ISP/NSP users accessed, are certified by the link between BAS and AAA. WEB or PPPoE certification would be adopt for user. After being certified, the PORFILE attribute in the Radius protocol would download to BAS device. Then, the BAS device would permit user to access the corresponding network and charging according to the permission and rate data appointed by PORFILE attribute. The invention provides a reasonable school network implement method to solve user isolation and network security. The invention can not only simplify school network management, but also can effectively take network charging and permission management.
Description
Technical field
The present invention relates to communication network, relate in particular to a kind of implementation method of campus network.
Background technology
According to the latest survey result of China inter network information center in July calendar year 2001 (CNNIC), the present online total population of China has reached 2,650 ten thousand, and its middle school student user has accounted for 23%, is maximum customer group.Show according to another interrelated data, China netizen's popularity rate is 1.2%, wherein the popularity rate in the university student colony is 93%, present 87% network playing by students is in the Internet bar, 97% student makes a phone call with 201 campus cards, huge student's customer group and their online demand are education networks, particularly the precondition of campus network construction and development.Along with the construction of broadband metropolitan area network, also further to the public network expansion, long-distance education becomes a broadband services that is rich in development potentiality to the campus business.
At present, how each big operator has built the solution of campus online as its metropolitan area network a important content resolves the problem of surfing the Net in the campus, provides a solution that makes operator and user all be satisfied with extremely urgent.
The campus online has its special demand, each university has built up school district office net at present, each campus network is through education network access the Internet (Internet), owing to need through repeatedly switching through, be subjected to the restriction of outlet bandwidth simultaneously, cause user's demand to satisfy, wasted a large amount of valuable time, caused the poor efficiency of work, the user can't realize work-at-home simultaneously.Along with the construction of broadband metropolitan area network, all there is the tight demand by the wide band system online in the Faculty and Students of school, and the mode of carrying out the Wideband access on the basis of legacy network and business is the current demand of campus online.
The problem that campus network mainly solves is the different choice according to the user, makes it to be limited in the visit of not chargeing in the campus network scope, perhaps surfs the Net and charges by broadband metropolitan area network.And one of foundation judging user's different choice is campus network and the different address realm of metropolitan area network employing, and another is whether the user is through authentication.
Be illustrated in figure 1 as current campus net technical application scheme schematic diagram, when the user need visit campus network and education network, adopt the WEB authentication mode, layer-3 switch (L3) is connected to AAA (Authentication by portal server (PORTAL SEVER), Authorization, Account, i.e. checking, authorize, charge) certificate server, the user starts shooting and directly obtains education network unified IP address and relative set by Dynamic Host Configuration Protocol server (DHCP SERVER), wherein the port address of layer-3 switch (L3) is as user's default gateway, when needing to exchange visits between campus network and education network user, if between the user be the phase same network segment, L3 uses as LAN switch (Lan Switch) so; If different segment, L3 transmits the message of exchanging visit for the user as user's default gateway so.
When the user needs access the Internet, use Ethernet point-to-point transmission agreement (PPPoE, Point-to-Point Protocol over Ethernet) client dialing, because PPPoE is to use broadcasting when initiating to connect, L3 will use as layer 2 switch (L2), broadcast packet is transparent on the BAS Broadband Access Server (BAS), BAS handles this dialing request, and connect with the user, afterwards, user's BAS is as the higher default gateway of priority (during clean culture), so when surfing the Internet, the user delivers to BAS by PPPoE with message, by BAS the user is chargeed.
When public network address was not enough, the user adopted PPPOE to obtain private network IP address, realized carrying out network address translation (nat) with regard to needs like this, can set up NAT device in education network outlet and Internet inlet, and address translation feature is provided.PPP dialing this moment address pool IP can adopt private network IP address in the address, and DHCP (DHCP) adopts public network IP address.
Utilize prior art, when the user adopted the WEB authentication mode, L3 was as Lanswitch and as the user default route, even if the user of different segment also can exchange visits by L3 like this, the user does not isolate; When the user usurped other user's IP address, L3 also can't detect, and still handled when normal users, and internet security does not guarantee; And because L3 only handles network layer, the user is not carried out independent management, finished simultaneously the termination of two layers of information, that two layers of information and user account are not bound may, thereby can't accomplish account number and port binding, account anti-theft does not solve with problem; And L3 lacks abundant access control of authority, if WEB user directly thinks access the Internet, L3 also can be transmitted to message BAS equipment so, so allows BAS become under fire object easily, causes BAS vulnerable.And when the user adopted the PPP authentication mode, the PPP user's IP address was because can directly exchange visits with other users of campus network, and stolen easily, the fail safe of network can't guarantee like this.
Summary of the invention
Technical problem to be solved by this invention is: overcome not isolation of user in the current campus net, shortcomings such as internet security difference, a kind of implementation method that reasonably solves the campus network of user isolation and network security problem is provided, not only simplify the network management of campus network, and charging and the rights management of can conduct interviews effectively campus network, education network and Internet.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The implementation method of this campus network may further comprise the steps:
A, be the experimental process network, and adopt Network supplier (NSP) server to manage to each sub-network as required the campus network internal separation;
Each sub-network of B, campus network is connected to the Internet service provider (ISP) server or the NSP server of internet and education network by BAS Broadband Access Server (BAS), and links to each other with certificate server (AAA) by BAS the corresponding network of the different ISP/NSP of user capture is authenticated.
Each sub-network of campus network can be by BAS respectively by entering the Internet or education network on a plurality of different ISP/NSP servers.
The user can adopt WEB mode or Ethernet point-to-point transmission agreement (PPPoE) mode to authenticate, aaa server is after authentication is passed through, using standard (PORFILE) attribute in remote authentication dial-in user service (Radius) agreement is issued to BAS equipment, this user's of notice BAS authority and corresponding rate, BAS equipment allows the corresponding network of user capture also correspondingly to charge according to the concrete specified power of PORFILE attribute, rate information.
When the user adopted the WEB authentication, its step was as follows:
1) user's start is by the IP address of DHCP (DHCP) server application to education network;
2) access entrance (Portal) page of access portal server (Portal Server), and connect according to the HTTP(Hypertext Transport Protocol) that this page provides to the certification page of each ISP/NSP, the certification page of the ISP/NSP of accesses network correspondence, user name or the card number and the password of this network allocation of input in the authentication frame of certification page;
3) background program of the certification page of Portal Server adds the user name of input or card number that the suffix of the corresponding ISP/NSP of network gives aaa server and authenticate automatically;
4) aaa authentication is by authority and the corresponding rate of back by this user of Portal Server notice BAS equipment.
When the user passed through authentication, Portal Server downloaded a background program by portal protocol and carries out on user's computer, notifies the user can surf the Net.
When the user wants to visit corresponding network by other ISP/NSP again, PORTALSERVER is left from the ISP/NSP of current network correspondence, PORTAL Server notifies the access authority of this user's correspondence of BAS device clear then, after this, the user visits the ISP/NSP that the PORTAL page selects to meet own internet access request again, carries out the WEB authentication again.
When the user adopts the PPP over Ethernet authentication, behind user name of importing or card number, add the suffix of the corresponding ISP/NSP of network during dialing, and enter password that back directly this user's of notice BAS equipment authority and corresponding rate are passed through in aaa authentication.
Can set up network address translation (nat) equipment in the outlet and the porch, internet of education network as required, public network address and private net address are changed.
Aaa server can be when authenticating, the medium access control of user bound (MAC) address and Virtual Local Area Network, and this information is issued in the BAS equipment, by BAS equipment user's message is checked, usurp the IP address to prevent the user.
Beneficial effect of the present invention is: the present invention replaces the position of L3 by using BAS, finish the function of two equipment, and adopt many ISP/NSP solution, can become the sub-network of a plurality of different stages to manage with the campus network internal separation education network, simplify the network configuration of campus network, be convenient to centralized management.By user right is managed independently, from having realized user's isolation in essence, the factor of managerial confusion and the safety problem that may exist have been avoided to exist, and the safety that can guarantee and manage campus network and education network sensitive resource more effectively, by the default Internet resources that can visit of limited subscriber effectively, overcome campus network networking structure complexity, distribution area may be given the variety of problems of bringing in the management very greatly.
Utilize the present invention, user's number of the account, VLAN and MAC can be bound, thereby fundamentally stopped user's address embezzlement problem, improved the fail safe of network, and the user chargeed manage independently, increased the flexibility of charging policy, further reduced the cost of network operation.
Under technical solution of the present invention, the advantage of WEB authentication mode is more outstanding, can be under the situation that does not discharge the IP address by the WEB authenticated user, the access authority of Dynamic Selection oneself on PORTAL SERVER, thereby the definite internet resource that oneself can visit, so can accomplish " applied address of user is arbitrarily surfed the net ", and can enjoy different preferential policies.Like this, the unified address administration that carries out, each ISP/NSP can manage independently again simultaneously, has realized separating of network topology and service management, has strengthened network extensibility.
Description of drawings
Fig. 1 is a current campus net technical application scheme schematic diagram;
Fig. 2 is a campus network technical application scheme schematic diagram of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
ISP (Internet Service Proxy) is a Internet service provider, NSP (NetworkService Provider) is Network supplier, have only among the present invention and need authenticate and the resource of chargeing just belongs to the category of ISP/NSP user capture, insert ISP etc. as the charging server of campus network inside, various local charging server, Internet, and each is independently authenticated and the resource of chargeing just as an ISP/NSP independently.
Be illustrated in figure 2 as campus network technical application scheme schematic diagram of the present invention, realize by many ISP/NSP, the prerequisite of present embodiment technical scheme utilization is: user capture Internet network tolling, the operator that has a plurality of Internet business simultaneously, each operation commercial city is an independent ISP (as ISP1 and ISP2); Network in user capture education network and the campus is free of charge, respectively it is considered as an independently NSP, education network is NSP1, is different sub-networks with campus network by different area dividing, the zone can be the several network segments that have same characteristic features in logic, physically may be to concentrate also may distribute, and the dormitory area is divided into a sub-network here, a sub-network is divided in Office Area and teaching, adopts NSP server (NSP2) to manage to Office Area and teaching district sub-network.
The present invention replaces the position of L3 in the existing scheme by using BAS Broadband Access Server (BAS), finish the function of two equipment by BAS, each sub-network of campus network is directly connected to ISP1, ISP2 and NSP1 by BAS Broadband Access Server (BAS), BAS also links to each other with certificate server (AAA), and the network of the different ISP/NSP correspondence of user capture is authenticated.
The user can adopt WEB authentication mode and PPP authentication mode:
1, adopts the WEB authentication mode
The WEB authentication is connected to aaa server by access portal server (Portal Server) and carries out, access entrance (Portal) business is a kind of novel business that ISP/NSP offers the user, it makes the user when online, can select to be fit to user's oneself business by WWW browser (as Internet Explorer or Netscape NaVigator) the Portal Server of standard flexibly, comprise that ISP/NSP selects, type of service is selected, bandwidth is selected, QOS guarantees grade selection or the like, also can carry out the customer charge self-service query by the Portal page, advertisement, business such as rechargeable card.Portal Server provides the server of Portal business, is made up of the WebServer and the backstage control program of a standard.
The WEB authentication mode mainly is at the office user, and user's start is by the IP address of DHCP (DHCP) server application to education network, the PORTAL page of at first visiting PORTALServer; This moment, the PORTAL page provided the HTTP(Hypertext Transport Protocol) of the certification page of each ISP/NSP to connect, if for example the user's network that need visit the Office Area of campus network is just clicked the connection of the Office Area correspondence of campus network, so the user just can visit this network correspondence NSP2 certification page and in the authentication frame user name or the card number and the password of this network allocation of input.
After this background program of the certification page of PORTAL Server adds user name that the suffix of the corresponding NSP2 of network of the Office Area of campus network gives aaa server and (for example authenticate automatically, the user of user input user by name is user@nsp2 after adding suffix); Aaa server is after authentication is passed through, by PORTAL Server user's oneself authority, rate etc. are issued on the BAS equipment by using standard (PORFILE) attribute in remote authentication dial-in user service (Radius) agreement, Profile is used for describing the group access control tabulation (ACL) of satisfying certain rule, to determine certain professional feature.
Like this, BAS equipment just can be according to information such as the concrete specified power of PORFILE attribute, rates, allow the network of user capture campus network Office Area, because the network of dormitory area excludes in the ISP/NSP management, so the visit of this network can be not limited, other resources for example Internet, education network do not allow visit; PORTAL SERVER carries out on user's computer by background program of PORTAL agreement download simultaneously, will open a timing window on subscriber computer, allows the user know and oneself can surf the Net.
When the user wanted to visit Internet again, the disconnection of clicking earlier in the timing window connected button, and notice PORTAL SERVER user will leave from the NSP (NSP2) of the Office Area network correspondence of campus network; PORTAL Server notifies the corresponding access authority of this user of BAS device clear automatically and carries out respective handling by AAA equipment then; After this, the user visits the ISP (ISP1 or ISP2) that the PORTAL page selects to meet the requirement of oneself surfing the Net again, click corresponding connection, enter certification page and input user name or card number and password, by with top similar handling process, BAS equipment is known authority that the user surfs the Net, rate etc.; The user just can visit Internet and charges according to the appointment rate after the timing window ejects.Carry out the NAT conversion as needs, can set up NAT device, address translation feature is provided at the outlet and the Internet of education network.
The present invention unifies to describe to information such as user right, rates by the PORFILE attribute, as long as PORTAL SERVER issues the PORFILE title, BAS promptly can resolve this character string, and issue relevant strategy at the user, and there is ambiguity, be that PORTAL SERVER can be a plurality of BAS service is provided, and the PORFILE corresponding strategy may be different, has improved the flexibility of operation like this.
In order to prevent that the user from usurping other user's IP address, AAA can also be issued to this information in the BAS equipment by medium access control (MAC) address and the Virtual Local Area Network of user bound in authentication, by BAS equipment user's message is checked, usurped the IP address so that prevent the user.
2, adopt the PPP authentication mode
This scheme mainly is at student or dormitory user, need input complete user name or card number and password during dialing, promptly behind user name or card number, add the suffix of the corresponding ISP/NSP of network, user@nsp2 for example, principle fundamental sum WEB authentication is the same, and aaa server authentication back is this user's of notice BAS equipment authority and rate etc. accordingly directly.
If the user will change ISP, so just need roll off the production line, reproduction is carried out aforesaid operations and is got final product.Carry out the NAT conversion as needs, can set up NAT device, address translation feature is provided at the outlet and the Internet of education network.Equally, AAA also can be in authentication medium access control (MAC) address and the Virtual Local Area Network of user bound, prevent that the user from usurping the IP address.
Claims (9)
1, a kind of implementation method of campus network may further comprise the steps:
A, be the experimental process network, and adopt Network supplier (NSP) server to manage to each sub-network as required the campus network internal separation;
Each sub-network of B, campus network is connected to the Internet service provider (ISP) server or the NSP server of internet and education network by BAS Broadband Access Server (BAS), and links to each other with certificate server (AAA) by BAS the corresponding network of the different ISP/NSP of user capture is authenticated.
2, the implementation method of campus network according to claim 1 is characterized in that: each sub-network of campus network can be by BAS respectively by entering the Internet or education network on a plurality of different ISP/NSP servers.
3, the implementation method of campus network according to claim 1 and 2, it is characterized in that: the user can adopt WEB mode or Ethernet point-to-point transmission agreement (PPPoE) mode to authenticate, aaa server is after authentication is passed through, using standard (PORFILE) attribute in remote authentication dial-in user service (Radius) agreement is issued to BAS equipment, this user's of notice BAS authority and corresponding rate, BAS equipment allows the corresponding network of user capture also correspondingly to charge according to the concrete specified power of PORFILE attribute, rate information.
4, the implementation method of campus network according to claim 3 is characterized in that: when the user adopted the WEB authentication, its step was as follows:
1) user's start is by the IP address of DHCP (DHCP) server application to education network;
2) access entrance (Portal) page of access portal server (Portal Server), and connect according to the HTTP(Hypertext Transport Protocol) that this page provides to the certification page of each ISP/NSP, the certification page of the ISP/NSP of accesses network correspondence, user name or the card number and the password of this network allocation of input in the authentication frame of certification page;
3) background program of the certification page of Portal Server adds the user name of input or card number that the suffix of the corresponding ISP/NSP of network gives aaa server and authenticate automatically;
4) aaa authentication is by authority and the corresponding rate of back by this user of Portal Server notice BAS equipment.
5, the implementation method of campus network according to claim 4 is characterized in that: when the user passed through authentication, Portal Server downloaded a background program by portal protocol and carries out on user's computer, notifies the user can surf the Net.
6, the implementation method of campus network according to claim 5, it is characterized in that: when the user wants to visit corresponding network by other ISP/NSP again, PORTAL SERVER is left from the ISP/NSP of current network correspondence, PORTAL Server notifies the access authority of this user's correspondence of BAS device clear then, after this, the user visits the ISP/NSP that the PORTAL page selects to meet own internet access request again, carries out the WEB authentication again.
7, the implementation method of campus network according to claim 3, it is characterized in that: when the user adopts the PPP over Ethernet authentication, behind user name of importing or card number, add the suffix of the corresponding ISP/NSP of network during dialing, and enter password, this user's of BAS equipment authority and corresponding rate directly notified in aaa authentication by the back.
8, the implementation method of campus network according to claim 3 is characterized in that: can set up network address translation (nat) equipment in the outlet and the porch, internet of education network as required, public network address and private net address are changed.
9, the implementation method of campus network according to claim 3, it is characterized in that: aaa server can be when authenticating, the medium access control of user bound (MAC) address and Virtual Local Area Network, and this information is issued in the BAS equipment, by BAS equipment user's message is checked, usurped the IP address to prevent the user.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031783929A CN1303791C (en) | 2003-07-19 | 2003-07-19 | A method for implementing campus network |
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| CNB031783929A CN1303791C (en) | 2003-07-19 | 2003-07-19 | A method for implementing campus network |
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| CN1571383A true CN1571383A (en) | 2005-01-26 |
| CN1303791C CN1303791C (en) | 2007-03-07 |
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| CNB031783929A Expired - Fee Related CN1303791C (en) | 2003-07-19 | 2003-07-19 | A method for implementing campus network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101834850A (en) * | 2010-04-01 | 2010-09-15 | 上海庚商网络信息技术有限公司 | Safety intelligent gateway and networking method thereof |
| CN102045398A (en) * | 2010-12-24 | 2011-05-04 | 杭州华三通信技术有限公司 | Portal-based distributed control method and equipment |
| CN102271136A (en) * | 2011-08-16 | 2011-12-07 | 赛尔网络有限公司 | Access control method and equipment under NAT (Network Address Translation) network environment |
| CN102469078A (en) * | 2010-11-08 | 2012-05-23 | 中国移动通信集团公司 | Method, system and device for accessing campus network to external network |
| CN101599904B (en) * | 2009-06-26 | 2012-06-27 | 中国电信股份有限公司 | Method and system for virtual dial-up safe access |
| CN101610156B (en) * | 2009-08-04 | 2012-07-11 | 杭州华三通信技术有限公司 | Dual protocol stack user authentication method, device and system |
| CN103841218A (en) * | 2012-11-20 | 2014-06-04 | 中国移动通信集团上海有限公司 | Method for determining duration of public network access by user terminal and net access server |
| CN104753854A (en) * | 2013-12-25 | 2015-07-01 | 华耀(中国)科技有限公司 | Method for setting uniform Web interface for various authentication/authorization servers |
| CN104821902A (en) * | 2015-05-06 | 2015-08-05 | 苏州工业职业技术学院 | Double-export education metropolitan area network system |
| CN105262628A (en) * | 2015-11-06 | 2016-01-20 | 常州大学怀德学院 | Campus dormitory network management system based on multi-operator link sharing |
| CN105515797A (en) * | 2015-12-15 | 2016-04-20 | 福建星网锐捷网络有限公司 | Campus network user authentication charging method, device and system |
| CN110493358A (en) * | 2019-09-16 | 2019-11-22 | 世纪海航(厦门)科技有限公司 | A kind of document transmission method based on ad hoc network, device and server |
| CN110753062A (en) * | 2019-10-25 | 2020-02-04 | 赛尔网络有限公司 | Authentication method, device, system and medium |
| CN112491563A (en) * | 2020-11-09 | 2021-03-12 | 华中师范大学 | Campus network free flow calculation method, system, server and storage medium |
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| CN101056179B (en) * | 2007-06-13 | 2010-06-09 | 中兴通讯股份有限公司 | Method and system for controlling the user to visit the network at the specific area |
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| CN1185831C (en) * | 2001-12-13 | 2005-01-19 | 华为技术有限公司 | Method for managing users in wide hand city network |
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- 2003-07-19 CN CNB031783929A patent/CN1303791C/en not_active Expired - Fee Related
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| CN101599904B (en) * | 2009-06-26 | 2012-06-27 | 中国电信股份有限公司 | Method and system for virtual dial-up safe access |
| CN101610156B (en) * | 2009-08-04 | 2012-07-11 | 杭州华三通信技术有限公司 | Dual protocol stack user authentication method, device and system |
| CN101834850A (en) * | 2010-04-01 | 2010-09-15 | 上海庚商网络信息技术有限公司 | Safety intelligent gateway and networking method thereof |
| CN102469078B (en) * | 2010-11-08 | 2015-05-27 | 中国移动通信集团公司 | Method and system for accessing campus network to external network |
| CN102469078A (en) * | 2010-11-08 | 2012-05-23 | 中国移动通信集团公司 | Method, system and device for accessing campus network to external network |
| CN102045398A (en) * | 2010-12-24 | 2011-05-04 | 杭州华三通信技术有限公司 | Portal-based distributed control method and equipment |
| CN102045398B (en) * | 2010-12-24 | 2013-08-28 | 杭州华三通信技术有限公司 | Portal-based distributed control method and equipment |
| CN102271136A (en) * | 2011-08-16 | 2011-12-07 | 赛尔网络有限公司 | Access control method and equipment under NAT (Network Address Translation) network environment |
| CN103841218B (en) * | 2012-11-20 | 2017-02-22 | 中国移动通信集团上海有限公司 | Method for determining duration of public network access by user terminal and net access server |
| CN103841218A (en) * | 2012-11-20 | 2014-06-04 | 中国移动通信集团上海有限公司 | Method for determining duration of public network access by user terminal and net access server |
| CN104753854A (en) * | 2013-12-25 | 2015-07-01 | 华耀(中国)科技有限公司 | Method for setting uniform Web interface for various authentication/authorization servers |
| CN104821902A (en) * | 2015-05-06 | 2015-08-05 | 苏州工业职业技术学院 | Double-export education metropolitan area network system |
| CN105262628A (en) * | 2015-11-06 | 2016-01-20 | 常州大学怀德学院 | Campus dormitory network management system based on multi-operator link sharing |
| CN105515797A (en) * | 2015-12-15 | 2016-04-20 | 福建星网锐捷网络有限公司 | Campus network user authentication charging method, device and system |
| CN110493358A (en) * | 2019-09-16 | 2019-11-22 | 世纪海航(厦门)科技有限公司 | A kind of document transmission method based on ad hoc network, device and server |
| CN110493358B (en) * | 2019-09-16 | 2022-05-27 | 世纪海航(厦门)科技有限公司 | File transmission method and device based on ad hoc network technology and server |
| CN110753062A (en) * | 2019-10-25 | 2020-02-04 | 赛尔网络有限公司 | Authentication method, device, system and medium |
| CN110753062B (en) * | 2019-10-25 | 2022-01-04 | 赛尔网络有限公司 | Authentication method, device, system and medium |
| CN112491563A (en) * | 2020-11-09 | 2021-03-12 | 华中师范大学 | Campus network free flow calculation method, system, server and storage medium |
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| Publication number | Publication date |
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| CN1303791C (en) | 2007-03-07 |
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