What happens if there is a conflict of IP addresses?

I think the reason for this problem is that the rover has set up the DHCP service so that each machine connected to the rover gets an IP address (if the machine does not specify an IP).

And the other computers you live with must have someone with a fixed IP address, and the IP address he set must be duplicated with the IP in the DHCP address pool, so when the land-based rover assigns this IP to any machine, it will conflict with this fixed IP.

2.Remove this IP from the address pool on the landboard.

This problem will definitely be solved.

This means that the IP address you set is the same as the static IP address of other computers on the network, which causes a conflict. You can use different IPs without conflict, generally change the last digit of the IP address.

And a computer that is connected to the switch with you?

If there is, it is the same IP that you use with other people, and you can change to another one.

Change the fourth byte of the local IP, such as the original one, and then bombard it with software that sends massive packets, so that the bastard has nothing to do!

Simple click to change the IP, you set up to automatically obtain the IP, or can't you ask the boss the IP address range, modify the IP yourself, keep this kind of thinking, can't you provoke me and can't hide?

If the error message you described appears, it should be that the IP address set by the network card conflicts with the IP address of another computer or other network device on the network, and the so-called conflict means that the same address is used, 00:20:ed:

9e:55:b6 is the MAC address of the other computer or network device.

If your computer is in a local area network, and the IP address of the network card is automatically assigned by the LAN server, on Windows 2000 and other operating systems, you can click the "Start" button, select "Command Prompt" in "Accessories", and enter "ipconfig renew" in the command line state, so that the system can release the current IP address and get a new one. In Windows 98, you can click the Start button, select Run, type WinIPCFG, and choose to release the current IP on the dialog box that appears, and then get one again. If your IP address is set to a fixed IP address, if you set it yourself, you can set another one, if it is assigned by an administrator, then you need to contact the administrator to report the IP address conflict, ask for a change of IP address or find out the computer that caused the conflict to fix it.

If you are using a computer on a stand-alone computer, you need to check which of the devices you are using is the cause of the conflict, such as whether the IP address of the ADSL modem is the same as the IP address of your network card.

First of all, you need to set up the router and type the account admin in the Internet Explorer, and the password is also admin and set it down.

Routing has to open the function of the Kelong network card, and the telecom there is estimated to be dynamically tied up your Mac.

Also, you can manually assign the IP by yourself, why do you want to get it automatically.

How to solve the IP address conflict of the computer.

Here's how.

1. After receiving the conflict report, we first determine the VLAN where the conflict occurred. Use the VLAN definition and conflicting IP addresses in the IP plan to find the CIDR block where the conflicting IP address is located. This is critical to successfully finding the MAC address of the network card, as some network commands cannot be accessed across network segments.

2. First of all, isolate the client from the network, let the computer with the illegal IP address run on the network, and the network administrator can try to find it. There are two types of application network test commands: ping command and arp command. Using the ping command, assuming the conflicting IP address is, in the msdos window, the command format is as follows, where the italicized part is the result of the command.

3. The reason why we want to ping this machine is for two purposes, first of all, we need to know that the machine we are looking for is indeed on the network, and secondly, we need to know the MAC address of the network card of this machine, so how do we know its MAC address? This requires the use of the second command, arp: the arp command can only be used in a certain VLAN, it is a low-level protocol, and cannot be used across routes.

The above list indicates that the MAC address of the NIC at the conflicting IP address is 00-00-21-34-63-56. The next thing we need to look for is the specific physical location of the network card with the MAC address 00-00-21-34-63-56.

The landlord came to see my summary.

IP conflicts are also relatively common, so let's first understand the IP

An IP address must be unique within a network, i.e., an IP address is unique. For example, in a local area network, this IP is only used on one computer, and if there are two or more computers using this IP, there will be conflicts.

Now that we have a basic understanding of the causes of IP conflicts, let's take a look at the situations under which they occur?

There are two types of IP addresses.

1. Automatic acquisition, when the server or router in the network turns on DHCP (dynamic host configuration protocol, this protocol will define the address pool that automatically assigns IP, for example, then, the client in the network can be set to automatically obtain the IP address in the local connection to let the server configure an IP for the client, this IP is random (the server or router selects a non-assigned address pool from the defined address pool to use), This makes it possible to guarantee that the IP address is not the same as that of other computers that use automatic IP acquisition.

2. Manual designation, when the server or router in the network does not have the DHCP function turned on, we have to configure the IP for the client by ourselves, of course, if the server has the DHCP function turned on, we can also manually specify.

Okay, then let's see what happens.

If your computer uses automatic IP, for example, you have already got one, and then, another user in the same LAN as you, he is not automatic, he manually sets the IP, and he doesn't know that you have used this IP, he also configures his own computer, so that there are two identical IPs in the network, which breaks the IP uniqueness, and the conflict arises.

Or, yours is also manual, and then he manually configures an IP that is the same as yours, and that is the same result, IP conflict.

Finally, let's talk about the solution.

1. If you are using automatic and there is a conflict, you can click on the fix and let the server reconfigure a new IP for you.

2. If you are manual and the server has DHCP turned on, you can change it to automatic.

3. If you are manual and the server does not open DHCP, you can manually change it to another weird IP, for example.