公开(公告)号：US09614810B2

公开(公告)日：2017-04-04

申请号：US13911835

申请日：2013-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chengguang Niu ,  Zhiwang Zhao ,  Guofeng Qian

IPC: G06F15/16 ,  H04L29/12

CPC classification number: H04L61/2015 ,  H04L61/2061

Abstract: The present invention provides an address allocation processing method, apparatus and system. The method includes: receiving, by a first BRAS, a DHCP relay packet sent by a second BRAS, wherein the DHCP relay packet includes a gateway IP address and source IP address-based response information; parsing, by the first BRAS, the DHCP relay packet, acquiring the gateway IP address, and allocating an idle IP address from an acquired address pool matching the gateway IP address; encapsulating, by the first BRAS, a source IP address in the DHCP relay packet into a destination IP address in a response packet according to the source IP address-based response information, and sending the idle IP address carried in the encapsulated response packet to the second BRAS. The present invention effectively solve a problem that an address waste phenomenon exists by using a built-in DHCP server in a dual-device hot backup scene.

公开(公告)号：US11824685B2

公开(公告)日：2023-11-21

申请号：US17867662

申请日：2022-07-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Xue ,  Shanshan Wang ,  Zongpeng Du ,  Zhiwang Zhao

IPC: H04L12/46 ,  H04L65/1033

CPC classification number: H04L12/4633 ,  H04L65/1036

Abstract: A method for implementing a generic routing encapsulation (GRE) tunnel, an access point (AP), and a network system. The method includes establishing a Control And Provisioning of Wireless Access Points (CAPWAP) tunnel with an access controller (AC), receiving addresses of at least two gateways, establishing at least two GRE tunnels coupled to the gateways respectively according to the addresses of the at least two gateways, and selecting one of the at least two GRE tunnels to transmit data.

公开(公告)号：US10855491B2

公开(公告)日：2020-12-01

申请号：US14991497

申请日：2016-01-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Xue ,  Shanshan Wang ,  Zongpeng Du ,  Zhiwang Zhao

IPC: H04L12/46 ,  H04L29/06

Abstract: A method for implementing a GRE tunnel, an access point (AP), and a gateway (GW). The method includes: the AP receives a first packet, where the first packet carries an address of the GW; configures a GRE tunnel to the GW, where a source destination of the GRE tunnel is an address of the AP, and a destination address of the GRE tunnel is the address of the GW; the AP receives a second packet sent by user equipment; performs GRE tunnel encapsulation for the second packet to form a third packet; and the AP sends the third packet to the GW by using the GRE tunnel, where the third packet carries the address of the AP. The embodiments of the present application enable efficient establishment of the GRE tunnel between the AP and the GW if there are a large quantity of APs.

公开(公告)号：US20130326014A1

公开(公告)日：2013-12-05

申请号：US13911835

申请日：2013-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chengguang Niu ,  Zhiwang Zhao ,  Guofeng Qian

IPC: H04L29/12

CPC classification number: H04L61/2015 ,  H04L61/2061

Abstract: The present invention provides an address allocation processing method, apparatus and system. The method includes: receiving, by a first BRAS, a DHCP relay packet sent by a second BRAS, wherein the DHCP relay packet includes a gateway IP address and source IP address-based response information; parsing, by the first BRAS, the DHCP relay packet, acquiring the gateway IP address, and allocating an idle IP address from an acquired address pool matching the gateway IP address; encapsulating, by the first BRAS, a source IP address in the DHCP relay packet into a destination IP address in a response packet according to the source IP address-based response information, and sending the idle IP address carried in the encapsulated response packet to the second BRAS. The present invention effectively solve a problem that an address waste phenomenon exists by using a built-in DHCP server in a dual-device hot backup scene.

Abstract translation: 本发明提供一种地址分配处理方法，装置和系统。 该方法包括：由第一BRAS接收由第二BRAS发送的DHCP中继分组，其中所述DHCP中继分组包括网关IP地址和基于源IP地址的响应信息; 通过第一BRAS解析DHCP中继分组，获取网关IP地址，并从获取的与网关IP地址匹配的地址池分配空闲IP地址; 根据基于源IP地址的响应信息，由第一BRAS将DHCP中继分组中的源IP地址封装成响应分组中的目的地IP地址，并将封装的响应分组中携带的空闲IP地址发送到 第二BRAS。 本发明通过在双机热备份场景中使用内置的DHCP服务器有效地解决了存在地址浪费现象的问题。