Static IP address binding example

In static IP, if you use a Layer 3 switch, you can define the IP address on each port of the switch. If someone changes their IP address, then his network will be Nowhere. We now explain an example of the binding of a static IP address.
View the MAC address of the network card
Click ""Start”, select “Run”, then enter the winipcfg command in it, this will find out your network card address.
After recording, go to the proxy server and let the network administrator bundle the static IP address you have on the Internet with the network card address of the recorded computer. The specific command is:
ARP-s192.168.0.400-EO-4C-6C-08-75
This will put your static IP address on the Internet (assumed to be 192.168.0.4) and the network card address (assumed to be 00-EO-4C-6C-08-75) The computer is bundled together, even if someone else steals your IP address 192.168.0.4, it can't access the Internet through a proxy server. It should be noted that this command is only useful on the proxy server side of the Internet, and it is also a static IP address. Like the normal Modem dial-up Internet, the dynamic IP address does not work.
ARP function introduction
ARP?-s??-d??-a?
-s——Bundle the corresponding IP address with the physical address.
-d——Delete the bundle of the given IP address and physical address.
-a—— Display the IP address and corresponding physical address by querying the Arp protocol table.
As a network administrator, if the binding of MAC address and IP can be flexibly and skillfully used, it will create a very safe and favorable environment, which can greatly reduce security risks.