METHOD FOR REALIZING IPV6 HOST VISTING IPV4 HOST, METHOD FOR OBTAINING IPV6 ADDRESS PREFIX AND TRANSLATION DEVICE

摘要

The present invention relates to the communication field, and in particular, to a method for enabling an Internet Protocol version 6 (IPv6) host to access an Internet Protocol version 4 (IPv4) host, a method for obtaining an IPv6 address prefix, and a translation apparatus. The method includes: obtaining, by a source host, an address prefix used for translating an IPv4 address into an IPv6 address; and translating, by a source host, an IPv4 address into an IPv6 address. The translation apparatus includes: a prefix obtaining unit and an address translating unit. The prefix obtaining unit is adapted to obtain an address prefix used for translating an IPv4 address into an IPv6 address, and the address translating unit is adapted to perform translation between IPv4 and IPv6 addresses.