Method and device for automatic IP address detection

Abstract

The invention discloses a method which can detect IP address conflicts automatically. The method is concretely that a first terminal broadcasts ARP message to other terminals through a prearranged IP network address. The ARP message carries IP addresses to be detected. The ARP message is used in other terminals for judging whether the IP address of the ARP message is the same with the IP address to be detected. The first terminal receives the ARP response information sent by other terminals according to the judged results. The invention also discloses a device, which is used for detecting the IP address conflicts automatically. The invention still discloses a device which is used for helping detecting the IP address conflicts automatically. The invention judges the IP address conflicts through the ARP message and avoids the happening of the IP address conflicts from headstream. The method can be implemented under the condition of not influencing the network communication. Therefore, a trivial problem location process is avoided and a large quantity of maintenance cost is saved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for automatically detecting IP (Internet Protocol, a protocol for interconnecting networks) address conflicts. Background technique [0002] With the continuous development of network technology, network applications have become more and more popular. At present, there are many different manufacturers producing various types of computers, different devices, and different network terminals. Although they run completely different operating systems, the TCP (Transmission Control Protocol, Transmission Control Protocol) / IP protocol suite allows them to communicate with each other. communication. [0003] Network protocols are usually developed in different layers, each layer responsible for different communication functions. The TCP / IP protocol family is a combination of multiple protocols at different levels. It is a four-layer protocol system. Each layer is respons...

AI Technical Summary

Problems solved by technology

[0005] 2) The network layer, sometimes called the Internet layer, deals with the activities of packets in the network. Since the MAC address usually exists in a flat address space, there is no clear address hierarchy; in addition, the MAC address is fixed in the hardware and has poor flexibility.

You can quickly find out that the IP address conflict caused the communication failure, but which host or device conflicts, you still need to manually query the IP addresses of all hosts or devices to find the problem

Similarly, in the process from the occurrence of the problem to the final solution, because multiple hosts or devices use the same IP address at the same time, there will always be conflicting IP addresses in the switching network. All data packets related to the IP address cannot be correctly switched to the specified host. or on the device

Compared with the previous method, although this method can locate the IP address conflict problem in time, it still needs to query the IP addresses of all other hosts or devices to finally eliminate the problem. The processing method is still complicated, and the processing time is very different from the level of processing personnel big relationship

[0017] To sum up, it can be found that at present, it is only resolved after the IP address conflict, which causes high maintenance costs for the network, and affects the normal communication of the network.

Images