METHOD, TERMINAL AND GATEWAY FOR TRANSMITTING INTERNET PROTOCOL VERSION 6 PACKETS IN INTERNET PROTOCOL VERSION 4 NETWORK

摘要

The present invention provides a method, a terminal, and a gateway for transmitting an IPv6 packet in an IPv4 network. The method includes: obtaining, by an IPv6 terminal, an IPv6 address of the terminal, where the IPv6 address comprises an IPv4 address, the IPv4 address is an IPv4 address of a gateway or an IPv4 address designated by the gateway, the gateway is a device connecting an IPv6 network to an IPv4 network, or a device connecting a layer 2 network to an IPv4 network, multiple IPv6 terminals are connected to the gateway, and IPv6 addresses of all the IPv6 terminals connected to the gateway comprise the same IPv4 address; and sending, by the IPv6 terminal, an IPv6 packet to the gateway, where the IPv6 packet comprises the IPv6 address as a source address. In embodiments of the present invention, traversal of an IPv6 packet through an IPv4 network can be implemented, and IPv4 address resources can be saved.