DHCP ip conflict, DHCP server IP conflict, how to solve it

You can use MAC address and IP address to bind in DHCP.

For example, my 00-1D-72-AD-49-B0 is bound to an IP address. After booting up, DHCP will identify the MAC address and determine the IP address bound to it to assign it.

1. Whether the corresponding IP will conflict mainly depends on your network structure.

2. If the AC is on the upper level of the router, then there will be no conflict, and if the AC is on the lower level of the router, there should be a conflict.

This should not conflict.

There should be a conflict in this way.

DHCP can be opened casually, it does not affect the use, and it is more convenient to automatically obtain the IP address, so that the IP address of the LAN port of the wireless router can be changed to reduce the probability of conflict, and it will not conflict with the IP address of the optical modem to other devices.

If there is no conflict, the AC template is generally different by one rank, so the AP will not conflict.

In addition, H3C AC, the template is not issued, and the AP is also WAN access, so the IP received from the AC is different. DHCP is then assigned automatically by the AP. Quite a bridging function...

AC should be at the rear level of the router, it doesn't affect, why not use a router AC integrated with it, like Huawei, TP has it, and TP is very cheap.

How to solve the IP address conflict of the computer.

1. Modify the IP address of the server;

2. Set all clients to automatic IP address acquisition;

3. Set a section of IP address in the DS CP address pool as a reserved address, which is used to allocate to servers to avoid the situation of IP address occupation.

What route is used, what switch is used.

For 200 computers, it is recommended not to use the DHCP function that comes with the router.

If you have a lot of network segments, try using a managed switch.

After there is DHCP, there is also an IP conflict?

Then please check whether the client computer in your LAN uses the method of manually setting the IP? If yes, select Automatic.

Since DHCP is used, the client must choose to automatically acquire an IP address. (This is the most important point).

DHCP is time-limited in the server settings. Please set a longer time.

If you cannot get the IP address, go to the DHCP server. Delete the existing IP address pool.

Set it up manually. If you don't know the parameters.

Then start --run --cmd--ipconfig there depends on the IP you get

Gateway. Subnets.

DNS and then change it to manual settings yourself.。。 If it doesn't work, change the IP! That way there will be no conflict!

This is because someone has manually changed their IP to be the same as yours.

All you need to do is set up to automatically get an IP in the local connection attributes, or you can manually set an IP yourself.

One of your LAN computers may have been infected with the ARP virus, causing IP spoofing.

You can either ARP firewall or 360ARP firewall.

Maybe it's because you have limited IP address allocation, but there are too many machines. Duplicate IP addresses.

Maybe someone else manually changed the IP themselves.

This problem is generally caused by the following situations:

1. This prompt will appear when the machine and other computers in the same network use the same IP address, and the machine is turned on to access the network at the same time.

2. The local computer or other computers in the network are infected with ARP virus, and there is ARP spoofing.

How to dismantle Sun Decision next to the IP address conflict of the computer Yunyu.