In corporate network management, the management of IP is important. In the beginning of the network, the IP is allocated. To interrupt the IP (not a submas segment, just for convenient management): Which interval gives the server, which interval gives the network device, which range gives Computer users, etc. The server and network devices are definitely a fixed IP, and it is convenient to manage. Other users are dynamic allocation.
We are often used to provide special network services for IPs in specific intervals, such as using high speed Internet lines. This is generally concealed, but time will be discovered by some "master". For example, the project department, know more computers, and have optical drives and other equipment, it is difficult to prevent! Suddenly one day I found that a server was not normal and found that IP address conflicts. Be sure to find a black hand, to prevent it again!
How to find whom is the IP and server conflict, the conflict of this IP is caught, or the other party will change immediately, or because the conflict network cannot be enabled, you can only find the hardware with the MAC address. Open Server Management Tools> Event Viewer> System Logs, Find Source to TCPIP The error logs are as follows:
The system detects the IP address xxx.xxx.xxx.xxx and network hardware addresses xx: xx: xx: xx: xx: xx address conflict. The network operation of this system may suddenly be interrupted. XX: XX: XX: XX: XX: XX is the MAC address we have to find, and then it is to check who is. Open the DHCP server and view the IP rental record that can be found which IP has been rented, the computer name is.
What should I do without DHCP servers or rent records without this MAC address on the server? This may be a fixed computer or network device, or it may be new. Find a network tool software, I use "Network Agent" to scan the IP of the entire local area network again, all the list of IPs of online computer network devices correspond to the list of MAC addresses. The premise is that the computer you want to find is normal to connect the network.
The most stupid method is to use the NBTSTAT instruction to check one of the IP, but it seems to only support Windows computers, network devices are invalid.
