NAT traversal method, equipment and system

• Main Author: CHEN CAILONG
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The embodiment of the invention provides a network address translation traversal method, device and system, and relates to a network address translation technology in the field of communication. The method is applied to a system in which a first terminal communicates with a second terminal, the first terminal is a terminal in a network constructed by a first NAT device, the second terminal is a terminal in a network constructed by a second NAT device, and the first NAT device is different from the second NAT device. The method realizes NAT traversal through bidirectional dynamic detection of TTL values of two ends of NAT traversal, so the problem of low NAT traversal efficiency is solved. 本申请实施例提供了一种网络地址转换穿越的方法、设备和系统，涉及通信领域的网络地址转换技术。该方法应用于第一终端与第二终端进行通信的系统中，第一终端为第一NAT设备构建网络中的终端，第二终端为第二NAT设备构建的网络中的终端，第一NAT设备与第二NAT设备不同，该方法通过双向动态探测进行NAT穿越的两端的TTL取值，实现NAT穿越，解决了NAT穿越效率低的问题。