Huawei Technologies Co., Limited

Chengjiao Nie

Bing Liu

Aiping Chen

Zhanbing Zhang

Meng Xu

Yejian Xu

A method resolves a problem of a slow mail downloading speed caused by a fact that an existing dual-mode dual-pass terminal cannot effectively utilize a network resource. The method includes obtaining a first transmission rate of a first network connection and a second transmission rate of a second network connection, obtaining a new mail list from a mail server, where the new mail list includes identifiers (IDs) of N mails and a data size of each mail in the N mails, creating a first download task and a second download task according to a preset rule, the first transmission rate, the second transmission rate, and the new mail list such that download time of the N mails is the shortest, downloading a mail indicated by the first download task using the first network connection, and downloading a mail indicated by the second download task using the second network connection.

Mail obtaining method, terminal, and system

Embodiments of the present invention provide a method, an apparatus, and a network system for a terminal to traverse a private network to communicate with a server in an IMS core network. The method includes: the terminal sets a source address of service data to be sent as a virtual IP address, sets a destination address of the service data to be sent as an address of an internal network server, and obtains a first service packet, where the virtual IP address is an address allocated by the IMS core network to the terminal, encapsulate the first service packet into a first tunnel packet, and send the first tunnel packet to the security tunnel gateway over a VPN tunnel between the terminal and a security tunnel gateway, then the security tunnel gateway sends the first service packet in the first tunnel packet to the internal network server.

Method, apparatus, and network system for terminal to traverse private network to communicate with server in IMS core network

Embodiment of the present invention provides a packet transmission method. The method includes: receiving an encrypted packet sent by a client by using a virtual private network (VPN) tunnel, wherein the encrypted packet is sent by the client after the client determines, according to a preset control policy, that the control policy comprises an Internet Protocol (IP) address and a port number that are the same as a destination IP address and a destination port number of a packet to be sent and encrypts the packet to be sent, and the control policy comprises information about an IP address and a port number of an intranet server that can exchange a packet with a security socket layer protocol (SSL) VPN server; decrypting the encrypted packet; and sending the decrypted packet to a corresponding intranet server, wherein a source IP address of the decrypted packet is an external network IP address.

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Shenzhen, China

Chengjiao Nie