Message forwarding and domain name address querying

A domain name address query method, which is applied to a domain name system, comprising:

• receiving a second address query request sent by a network address translation device for a target domain name, wherein a source address of the second address query request supports a first internet protocol;
• in response to the second address query request, querying a second network address corresponding to the target domain name, wherein the second network address supports a second internet protocol;
• translating the second network address to the first network address that supports the first internet protocol;
• and
• sending a second response message for the second address query request to the network address translation device, wherein the second response message includes the first network address and address translation information between the first network address and the second network address, so that the network address translation device sends the first network address to a client, and performs a destination address translation on a service message sent by the client according to the address translation information, wherein a destination address of the service message is the first network address.

A domain name system, comprising:

• a processor;
• a transceiver;
• a machine-readable storage medium to store machine-executable instructions that are executable by the processor;
• wherein the machine-executable instructions cause the processor to perform the following operations:
• receiving, by the transceiver, a second address query request sent by a network address translation device for a target domain name, wherein a source address of the second address query request supports a first internet protocol;
• in response to the second address query request, querying a second network address corresponding to the target domain name, wherein the second network address supports a second internet protocol;
• translating the second network address to the first network address that supports the first internet protocol;
• and
• sending, by the transceiver, a second response message for the second address query request to the network address translation device, wherein the second response message includes the first network address, address translation information between the first network address and the second network address, so that the network address translation device sends the first network address to a client, and performs a destination address translation on a service message sent by the client according to the address translation information, wherein a destination address of the service message is the first network address.