CN108134857B - IP address allocation method, device and system - Google Patents
IP address allocation method, device and system Download PDFInfo
- Publication number
- CN108134857B CN108134857B CN201711433643.5A CN201711433643A CN108134857B CN 108134857 B CN108134857 B CN 108134857B CN 201711433643 A CN201711433643 A CN 201711433643A CN 108134857 B CN108134857 B CN 108134857B
- Authority
- CN
- China
- Prior art keywords
- address
- ggsn
- processing result
- gre tunnel
- service
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 93
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
-
- 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
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides an IP address allocation method, a device and a system, which allocate a new IP address for a user, establish the corresponding relation of an original IP address (namely the IP address at the GGSN side), a GRE tunnel and the new IP address, send a service request to a service network by using the new IP address, and return the service processing result to the corresponding user according to the corresponding original IP address and the GRE tunnel by inquiring the corresponding relation when the service processing result is returned.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an IP address allocation method, device and system.
Background
In recent years, with the development of high-speed mobile internet services, WAP (Wireless application protocol) services have been edge-marketed gradually, but WAP services still carry basic information service services such as multimedia messages and SPs, and WAP gateways have strong network management and control capabilities, and are important nodes for helping operators to implement traffic management and control. Therefore, operators gradually carry out unified operation on the WAP service, centralize scattered resources scattered in various provinces, and endow the WAP service with new role functions in the 4G era.
However, due to historical construction reasons, address fields of GGSN (Gateway GPRS Support Node) of each province are not planned in a unified manner, and even address fields of GGSNs in one province all have a conflict phenomenon. The problem of the conflict of IP addresses allocated to users by GGSN across the country brings many problems to the unified operation of WAP services. For example, the IP addresses of the current user a and the current user B are 192.168.0.1, the IP addresses of the user a and the user B conflict, if the user a sends a service request to a WAP-GW (WAP gateway), the existing WAP-GW forwards the service request to the corresponding service network, and receives the processing result returned by the service network, and then only forwards the processing result to 192.168.0.1, but the IP addresses represent the user a and the user B at the same time, and both the user a and the user B receive the processing result of the WAP-GW, so that the processing result is sent incorrectly.
Therefore, an IP address allocation scheme is needed to solve the above problems.
Disclosure of Invention
The present invention provides a method, an apparatus and a system for allocating IP addresses, which are used to at least partially solve the problem of IP address conflict of GGSN address segments, in view of the above-mentioned shortcomings in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an IP address allocation method, which comprises the following steps: receiving a service request sent by a GGSN, wherein the service request is sent to the GGSN by a first IP address of a user and is sent by the GGSN through a GRE tunnel;
distributing a second IP address for the user, establishing a corresponding relation of the first IP address, the GRE tunnel and the second IP address, and sending a service request to service network equipment by using the second IP address;
receiving a processing result returned by the service network equipment, wherein the processing result is sent by the service network equipment by using the second IP address;
and determining a first IP address and a GRE tunnel according to the second IP address and the corresponding relation, and returning the processing result to the GGSN according to the GRE tunnel so that the GGSN returns the processing result to the user by using the first IP address.
Further, after receiving the service request sent by the GGSN and before allocating the second IP address to the user, the method further includes: acquiring a first IP address, a GRE tunnel and request data carried in the service request;
the sending of the service request to the service network device by using the second IP address specifically includes: and encapsulating the request data according to the second IP address, and sending a service request carrying the request data to service network equipment.
Further, after receiving the processing result returned by the service network device and before determining the first IP address and the GRE tunnel according to the second IP address and the corresponding relationship, the method further includes: acquiring a second IP address and result data carried in the processing result;
returning the processing result to the GGSN, which specifically includes: and encapsulating the result data according to the first IP address, and sending a processing result carrying the result data to the GGSN according to the GRE tunnel.
The present invention also provides a WAP gateway, which comprises: the device comprises a first receiving module, a second receiving module, a processing module, a first sending module and a second sending module;
the first receiving module is used for receiving a service request sent by the GGSN, wherein the service request is sent to the GGSN by a user through a first IP address and is sent by the GGSN through a GRE tunnel;
the second receiving module is configured to receive a processing result returned by the service network device, where the processing result is sent by the service network device by using the second IP address;
the processing module is used for distributing a second IP address for the user and establishing the corresponding relation of the first IP address, the GRE tunnel and the second IP address; and determining a first IP address and a GRE tunnel according to the second IP address and the corresponding relation;
the first sending module is configured to send a service request to a service network device by using the second IP address;
and the second sending module is used for returning the processing result to the GGSN according to the GRE tunnel so that the GGSN returns the processing result to the user by the first IP address.
Further, the processing module is further configured to, after the first receiving module receives the service request sent by the GGSN and before the second IP address is allocated to the user, obtain the first IP address, the GRE tunnel, and the request data carried in the service request;
the processing module is specifically configured to encapsulate the request data according to the second IP address;
the first sending module is specifically configured to send a service request carrying the request data to a service network device.
Further, the processing module is further configured to, after the second receiving module receives the processing result returned by the service network device, obtain a second IP address and result data carried in the processing result before determining the first IP address and the GRE tunnel according to the second IP address and the correspondence;
the processing module is specifically configured to encapsulate the result data according to the first IP address;
the second sending module is specifically configured to send, to the GGSN, the processing result carrying the result data according to the GRE tunnel.
The invention also provides an IP address distribution system, which comprises the GGSN and the WAP gateway.
The invention allocates new IP address for user and establishes original IP address (namely
The corresponding relation of the IP address at the GGSN side), the GRE tunnel and the new IP address, the new IP address is utilized to send a service request to a service network, when a service processing result is returned, the corresponding relation is inquired, and the service processing result is returned to a corresponding user according to the corresponding original IP address and the GRE tunnel, so that even different users are at the GGSN side
The IP addresses of the sides conflict, and because the GRE tunnels for sending the service request are different, the corresponding relation of the original IP address, the GRE tunnel and the new IP address is established, so that the user for sending the service request can be determined through the GRE tunnel, and the problem of service processing result sending error caused by the IP address conflict of the GGSN address segment is solved.
Drawings
FIG. 1 is a diagram of a network architecture provided by an embodiment of the present invention;
fig. 2 is a flowchart of IP address allocation according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a WAP gateway according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a method for solving GGSN address field conflict in WAP gateway, which allocates new IP address for user and establishes the corresponding relation of original IP address, GRE tunnel and new IP address in WAP gateway, thus realizing the unified operation of WAP service in whole country under the condition of not changing the configuration of GGSN in current network.
The invention provides an IP address allocation method, which is shown in a combined figure 1 and a figure 2 and comprises the following steps:
Specifically, the service request is sent to the GGSN by the first IP address, and is sent to the WAP gateway by the GGSN through the GRE tunnel. The first IP address is the IP address of the user at the GGSN side.
And 102, distributing a second IP address for the user, and establishing a corresponding relation among the first IP address, the GRE tunnel and the second IP address.
Specifically, the WAP gateway allocates a second IP address to the user, where the second IP address is an IP address of the user on the service network side, and the second IP address is unique. The WAP gateway establishes the corresponding relation of the first IP address, the GRE tunnel and the second IP address so as to be convenient for inquiring when a service result is returned to a user in the following process.
And 103, sending a service request to the service network equipment by using the second IP address.
Specifically, the WAP gateway sends a service request to the switch in the service network using the second IP address, the switch forwards the service request to the load balancer, the load balancer distributes tasks according to the current load condition of each service processor, the service processor distributed to the service request task completes a series of processing tasks such as authentication, request forwarding and the like according to the request content, and then the processing result is returned to the WAP gateway through the load balancer and the switch.
And 104, receiving a processing result returned by the service network equipment.
Specifically, the switch returns the processing result to the WAP gateway according to the second IP address, and the WAP gateway receives the processing result returned by the switch.
And 105, determining the first IP address and the GRE tunnel according to the second IP address and the corresponding relation.
Specifically, the WAP gateway queries the correspondence according to the second IP address, and determines the corresponding first IP address and GRE tunnel.
And step 106, returning the processing result to the GGSN according to the GRE tunnel.
Specifically, the WAP gateway returns a processing result to the corresponding GGSN according to the determined GRE tunnel, where the processing result carries the first IP address information.
Specifically, the GGSN which receives the processing result sends the processing result to the corresponding user according to the first IP address.
It can be seen from step 101 and step 107 that, in the present invention, a new IP address is allocated to a user, a corresponding relationship between an original IP address (i.e. the IP address on the GGSN side), a GRE tunnel and the new IP address is established, a service request is sent to a service network by using the new IP address, and when a service processing result is returned, the service processing result is returned to the corresponding user according to the corresponding original IP address and GRE tunnel by inquiring the corresponding relationship, so that even if IP addresses of different users on the GGSN side conflict, the user sending the service request can be determined through the GRE tunnel by establishing a corresponding relationship between the original IP address, the GRE tunnel and the new IP address due to different GRE tunnels sending the service request, thereby solving the problem of a service processing result sending error caused by the IP address conflict of the GGSN address segment.
Further, as shown in fig. 2, after receiving the service request sent by the GGSN (i.e. step 101) and before allocating a second IP address to the user (i.e. step 102), the method further includes the following steps:
step 101', a first IP address, a GRE tunnel and request data carried in a service request are obtained.
Specifically, the WAP gateway parses the service request to obtain the first IP address, GRE tunnel and request data carried therein.
Correspondingly, the sending the service request to the service network device by using the second IP address (i.e. step 103) specifically includes: and encapsulating the request data according to the second IP address, and sending a service request carrying the encapsulated request data to the service network equipment. Specifically, the WAP gateway repackages the request data according to the second IP address, and sends the repackaged service request to the switch of the service network.
Further, as shown in fig. 2, after receiving the processing result returned by the service network device (i.e. step 104) and before determining the first IP address and the GRE tunnel according to the second IP address and the correspondence (i.e. step 105), the method further includes the following steps:
and step 104', acquiring a second IP address and result data carried in the processing result.
Specifically, the WAP gateway analyzes the processing result to obtain the second IP address and result data carried therein.
Correspondingly, returning the processing result to the GGSN (i.e. step 106), specifically includes: and encapsulating the result data according to the first IP address, and sending a processing result carrying the encapsulated result data to the GGSN. Specifically, the WAP gateway repackages the result data according to the first IP address, and sends the repackaged processing result to the corresponding GGSN through the GRE tunnel.
For clearly explaining the technical solution of the present invention, the following describes the IP address allocation scheme of the present invention in detail by a specific embodiment with reference to fig. 1 and fig. 2.
User a initiates a WAP service request with the first IP address 192.168.0.1 and the GGSN1 sends the service request to the WAP gateway through 10.0.1.1 of the GRE tunnel. After receiving the service request of the user a, the WAP gateway allocates a new IP address 126.168.0.1 (second IP address) to the user a, performs packet processing on the request data according to the second IP address 126.168.0.1, and sends the request data to the service network devices (switch, service processor, etc.), and establishes the corresponding relationship of 192.168.0.1, 10.0.1.1, 126.168.0.1.
And after finishing a series of processing tasks such as authentication, request forwarding and the like according to the second IP address 126.168.0.1 and the request data, the service processor returns a processing result to the WAP gateway according to the second IP address 126.168.0.1.
After receiving the processing result, the WAP gateway queries the corresponding relationship according to the second IP address 126.168.0.1 to obtain the first IP address 192.168.0.1 and the GRE tunnel 10.0.1.1, repackages the result data of the processing result, and returns the result data to the GGSN1 through the GRE tunnel of 10.0.1.1, and the GGSN1 sends the result data to the user a according to the first IP address 192.168.0.1.
If user B also initiates a WAP service request with the first IP address 192.168.0.1, the GGSN2 sends the service request to the WAP gateway through a GRE tunnel of 10.0.1.2. After receiving the service request of the user B, the WAP gateway allocates a new IP address 126.168.0.2 for the user B, packages the request data according to 126.168.0.2 and sends the request data to service network equipment (a switch, a service processor and the like), and establishes a corresponding relation of 192.168.0.1-10.0.1.2-126.168.0.2.
And after finishing a series of processing tasks such as authentication, request forwarding and the like according to 126.168.0.2 and the request data, the service processor returns a processing result to the WAP gateway according to 126.168.0.2.
After receiving the processing result, the WAP gateway queries the corresponding relationship according to 126.168.0.2 to obtain the first IP address 192.168.0.1 and the GRE tunnel 10.0.1.2, repackages the result data of the processing result, and returns the result data to the GGSN2 through the GRE tunnel of 10.0.1.2, and the GGSN2 sends the result data to the user B according to the first IP address 192.168.0.1. Thus, even if the IP addresses of the user A and the user B on the GGSN side conflict (both are the first IP addresses), the user A and the user B are not influenced when using the WAP service.
Based on the same technical concept, an embodiment of the present invention further provides a WAP gateway, as shown in fig. 3, where the WAP gateway includes: a first receiving module 31, a second receiving module 32, a processing module 33, a first sending module 34 and a second sending module 35.
The first receiving module 31 is configured to receive a service request sent by the GGSN, where the service request is sent to the GGSN by a first IP address and sent by the GGSN through a GRE tunnel.
The second receiving module 32 is configured to receive a processing result returned by the service network device, where the processing result is sent by the service network device by using the second IP address.
The processing module 33 is configured to allocate a second IP address to the user, and establish a corresponding relationship between the first IP address, the GRE tunnel, and the second IP address; and determining the first IP address and the GRE tunnel according to the second IP address and the corresponding relation.
The first sending module 34 is configured to send a service request to the service network device with the second IP address.
And the second sending module is used for returning the processing result to the GGSN according to the GRE tunnel so that the GGSN returns the processing result to the user by the first IP address.
Further, the processing module 33 is further configured to, after the first receiving module 31 receives the service request sent by the GGSN and before the second IP address is allocated to the user, obtain the first IP address, the GRE tunnel, and the request data carried in the service request.
The processing module 33 is specifically configured to encapsulate the request data according to the second IP address.
The first sending module 34 is specifically configured to send a service request carrying the request data to a service network device.
Further, the processing module 33 is further configured to, after the second receiving module 32 receives the processing result returned by the service network device, obtain the second IP address and the result data carried in the processing result before determining the first IP address and the GRE tunnel according to the second IP address and the corresponding relationship.
The processing module 33 is specifically configured to encapsulate the result data according to the first IP address.
The second sending module 35 is specifically configured to send the processing result carrying the result data to the GGSN according to the GRE tunnel.
Based on the same technical concept, an embodiment of the present invention further provides an IP address allocation system, where the IP address allocation system includes a GGSN and the WAP gateway described above, and specific structures and functions of the WAP gateway are not described herein again.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (7)
1. A method for IP address assignment, the method comprising:
receiving a service request sent by a GGSN, wherein the service request is sent to the GGSN by a first IP address of a user and is sent by the GGSN through a GRE tunnel;
distributing a second IP address for the user, establishing a corresponding relation of the first IP address, the GRE tunnel and the second IP address, and sending a service request to service network equipment by using the second IP address;
receiving a processing result returned by the service network equipment, wherein the processing result is sent by the service network equipment by using the second IP address;
and determining a first IP address and a GRE tunnel according to the second IP address and the corresponding relation, and returning the processing result to the GGSN according to the GRE tunnel so that the GGSN returns the processing result to the user by using the first IP address.
2. The method of claim 1, wherein after receiving the service request sent by the GGSN and before allocating the second IP address to the user, the method further comprises: acquiring a first IP address, a GRE tunnel and request data carried in the service request;
the sending of the service request to the service network device by using the second IP address specifically includes: and encapsulating the request data according to the second IP address, and sending a service request carrying the request data to service network equipment.
3. The method of claim 1, wherein after receiving the processing result returned by the service network device and before determining the first IP address and the GRE tunnel according to the second IP address and the correspondence, the method further comprises: acquiring a second IP address and result data carried in the processing result;
returning the processing result to the GGSN, which specifically includes: and encapsulating the result data according to the first IP address, and sending a processing result carrying the result data to the GGSN according to the GRE tunnel.
4. A WAP gateway, comprising: the device comprises a first receiving module, a second receiving module, a processing module, a first sending module and a second sending module;
the first receiving module is used for receiving a service request sent by the GGSN, wherein the service request is sent to the GGSN by a user through a first IP address and is sent by the GGSN through a GRE tunnel;
the second receiving module is configured to receive a processing result returned by the service network device, where the processing result is sent by the service network device by using a second IP address;
the processing module is used for distributing a second IP address for the user and establishing the corresponding relation of the first IP address, the GRE tunnel and the second IP address; and determining a first IP address and a GRE tunnel according to the second IP address and the corresponding relation;
the first sending module is configured to send a service request to a service network device by using the second IP address;
and the second sending module is used for returning the processing result to the GGSN according to the GRE tunnel so that the GGSN returns the processing result to the user by the first IP address.
5. The WAP gateway of claim 4, wherein the processing module is further configured to, after the first receiving module receives the service request sent by the GGSN and before the second IP address is allocated to the user, obtain the first IP address, the GRE tunnel, and the request data carried in the service request;
the processing module is specifically configured to encapsulate the request data according to the second IP address;
the first sending module is specifically configured to send a service request carrying the request data to a service network device.
6. The WAP gateway of claim 4, wherein the processing module is further configured to, after the second receiving module receives the processing result returned by the service network device, obtain a second IP address and result data carried in the processing result before determining the first IP address and the GRE tunnel according to the second IP address and the corresponding relationship;
the processing module is specifically configured to encapsulate the result data according to the first IP address;
the second sending module is specifically configured to send, to the GGSN, the processing result carrying the result data according to the GRE tunnel.
7. An IP address allocation system comprising a GGSN and a WAP gateway according to any one of claims 4 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433643.5A CN108134857B (en) | 2017-12-26 | 2017-12-26 | IP address allocation method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433643.5A CN108134857B (en) | 2017-12-26 | 2017-12-26 | IP address allocation method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108134857A CN108134857A (en) | 2018-06-08 |
| CN108134857B true CN108134857B (en) | 2020-03-13 |
Family
ID=62392634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711433643.5A Active CN108134857B (en) | 2017-12-26 | 2017-12-26 | IP address allocation method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108134857B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532762B (en) * | 2020-11-25 | 2023-04-21 | 中盈优创资讯科技有限公司 | Method and device for avoiding IPv4 private network address conflict by IPv6 address |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369065A (en) * | 2013-07-05 | 2013-10-23 | 杭州华三通信技术有限公司 | Massage forwarding method and equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066035A1 (en) * | 2003-09-19 | 2005-03-24 | Williams Aidan Michael | Method and apparatus for connecting privately addressed networks |
| CN101626308B (en) * | 2008-07-09 | 2011-07-06 | 中国移动通信集团公司 | Routing method, equipment and system for WAP service authentication data packets |
| WO2012119399A1 (en) * | 2011-08-19 | 2012-09-13 | 华为技术有限公司 | Service bypass method, access network device and security gateway |
| CN102916865B (en) * | 2012-11-08 | 2015-09-09 | 浙江宇视科技有限公司 | A kind of monitoring business management method and device |
| CN105208598B (en) * | 2015-08-18 | 2019-03-12 | 中国联合网络通信集团有限公司 | A kind of method for network access and device |
| CN105245564B (en) * | 2015-08-27 | 2018-04-24 | 中国联合网络通信集团有限公司 | WAP method for processing business and WAP gateway |
-
2017
- 2017-12-26 CN CN201711433643.5A patent/CN108134857B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369065A (en) * | 2013-07-05 | 2013-10-23 | 杭州华三通信技术有限公司 | Massage forwarding method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108134857A (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200367297A1 (en) | Shared pdu session establishment and binding | |
| CN109600246B (en) | Network slice management method and device | |
| CN110365727B (en) | Communication method and related device | |
| CN113596863B (en) | Method, equipment and medium for determining user plane function and providing information | |
| CN100583877C (en) | Method, device and system for distributing server requests among a cluster of servers that have registered as mobile nodes | |
| CN114902634A (en) | Apparatus and method for providing information of application server in mobile communication system | |
| CN113596191A (en) | Data processing method, network element equipment and readable storage medium | |
| EP3113539A1 (en) | Load balancing user plane traffic in a telecommunication network | |
| KR20200131149A (en) | Method and apparatus for supporting service in wireless communication system flexibly | |
| CN113347738A (en) | Communication method, communication device, computer readable medium and electronic equipment | |
| CN112105091A (en) | Session management method, Session Management Function (SMF) entity, terminal and network side entity | |
| CN114365518A (en) | Method for influencing data service routing in core network through service application | |
| CN114342332A (en) | Communication method, device and system | |
| CN113079547B (en) | Method, equipment and device for providing relay service and readable storage medium | |
| CN109729122B (en) | Method and device for determining Ethernet MAC address | |
| CN108574965B (en) | Method and equipment for processing request | |
| CN107517150A (en) | Intranet resource access method and device based on VPN VPN | |
| CN109451539B (en) | Service quality improving method and device | |
| CN107277882B (en) | Data routing method, device and base station | |
| CN108134857B (en) | IP address allocation method, device and system | |
| US20220078606A1 (en) | Apparatus, method and computer program | |
| CN113473646B (en) | Communication method and device | |
| CN114257568A (en) | Data transmission method and related equipment | |
| CN111787643B (en) | Method and equipment for establishing session | |
| CN103826320A (en) | Method and device for establishing general-packet-radio-service connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |