In recent days, the local area network of our unit has a strange fault, always intermittent, breaking the network, less than a minute, and then automatically returns to normal. During the break network, the subnet gateway ping does not pass, and cannot log in to the switch. And this phenomenon is more frequent. The aggregation layer of this LAN is used by Huawei Quidway S3526, and several quidway S2026 is provided below for users to access. Thought is that there is a problem with the configuration of S3526, and it is not found to find a problem. Finally, I looked at the logbuffer record, I found that an address frequently conflicted with the gateway address of the subnet, turned off the switch port corresponding to this MAC address, and the problem solved. This thought is the user's shaking URL, checking his computer, found that the network configuration has no problem, it must be running on the machine, malicious attack gateway, forcing him to reload the system. After two days, the same problem appeared on another machine, doubting that this is a certain virus, malicious attack gateway, and has begun to spread. I got online for a long time, and I didn't find viral information on this area, I have never found a better solution. Which netizen understands this situation, please also provide information.
