| 摘要 |
<p>Each device (A, B) keeps an IP cache list storing IP address of devices it has communicated with in the past over an IP network (106). When the IP address of a device changes, it provides its new IP address to the devices in its IP cache list. As a result, any two devices that have communicated in the past are able to locate each other as long as their IP addresses do not change about the same time. A device can also provide its IP cache list to another device so the other device can query the devices in the IP cache list for the updated IP address of the device.</p> |
