How do I bind an IP address to a MAC address in a LAN?

Our company is bound to the router and can control the Internet.

In the control of your router, open the router and click on Security Settings.

To start, run, type: cmd enter, and then type arp ?Enter.

You'll get the idea. Of course, you need to know your Mac first, you have to type ipconfig all enter in the command box.

If the computer of the VLAN where the local computer is located has the login permission to access the switch of the VLAN (there may be multiple levels), then it is possible to configure the switch, if it does not have this permission, it cannot be configured, let alone unbind the MAC to the IP, the LAN manager will basically not give the switch configuration permission to the computer in the network (the manager has the switch configuration password information, he can set the switch can be configured on any computer); The other way is to restore the hardware of the switch (for example, reboot to restore the default settings, after the default is restored, any computer can obtain the configuration permission according to the factory password information of the switch); If you know the packets in your LAN well**, you can also do MAC spoofing to get a new IP

1. It depends on whether your router has a static IP address assignment (this basically has a desktop computer, at the beginning of each one-run-cmdenter-icconfig all), and then you can view the MAC address. (They bundle little meaning, the network cable connection is not stolen) a portable (with wireless), in the wireless settings of the router, there is a connection status (the name is similar), you can see the MAC address.

3. In the static IP assignment or MAC address binding of the router, assign the bound IP and MAC address.

4. Restart the router to achieve it.

The hardware address of the Cisco switch or router that binds the IP and NIC.

The MAC address of the network card is usually the only one determined, and a table corresponding to the IP address and the MAC address is established in the router, and only the legally registered machine corresponding to the IP-MAC address can get the correct ARP response, so as to control the IP-MAC mismatched host to communicate with the outside world, so as to prevent the theft of the IP address.

router(config)# arp arpa

Bind the IP address to the MAC address, if someone steals the IP address, because of the uniqueness of the MAC address, the IP address does not match the MAC address and the theft fails

router(config)# arp arpa

Summary: The use of MAC addresses and IP addresses can effectively prevent IP address theft, although it is more troublesome to collect user MAC addresses in the early stage, but the establishment of such a mechanism can bring a lot of convenience to users when managing the network. Therefore, we should collect the MAC address information of the machines in the LAN at the beginning of the network construction, so as to bring convenience to our future network management work!

If it is Windows 98 ME, run "winipcfg", the IP address you see in the dialog box is the IP address, and the "adapter address" is the MAC address of the network card.

Whereas, if it is a Windows 2000 XP system, you need to enter "ipconfig all" in the command prompt. The "physical address" in the display list is the MAC address, and the "IP address" is the IP address. To bind the two, you can enter "arp -s your IP address your MAC address", e.g. "arp -s 80-00-0b-b4-36-70".

Find a Tomato Internet router or WayOS router to easily solve the trouble. It can be said that you hardly need to set up, just turn on the smart control.

1.Set MAC filtering on the router access rule to allow MAC access.

2.Add the MAC address of the wireless router LAN If he is in the same network segment, add the phone and laptop addresses.

You can check some APR attacks, but you can't completely eliminate them, if you know the LAN address, find out the machine to kill the virus.

First of all, you open your router settings page (usually the router has instructions on it) The login username and password are generally admin, after logging in, find the security settings, IP filtering, MAC address filtering, and firewall settings are also there. You can find the MAC addresses of users who are surfing the Internet in the system tools, and bind the MACs of those users who use broadband together.

Hello landlord:

It is certain that ARP attacks can be prevented when set up.

Binding method: Open the browser: Enter the account and password of your router. Log in to the router management interface, and on the left side of the interface, there are options to bind MAC address and IP address. Bind your MAC and IP.

Then go to the security tab. Enable only MACs bound to the policy to access the Internet through routers. Then restart the router and that's it.

The wireless router is connected to the lower level of your router. That is, under the control of your router. Remember to assign each IP to your wireless router as well