Detailed explanation of arp command

The arp commands include arp -a, arp -d, arp -s, arp -d, arp -g and arp -n. Detailed introduction: 1. arp -a, display the local ARP cache table; 2. arp -d, delete the ARP cache entry of the specified IP address; 3. arp -s, add static ARP cache entry; 4. arp -d, clear the local ARP cache table; 5. arp -g, displays the local ARP cache table; 6. arp -n, displays the local ARP cache table.

The arp command is a method used to operate and manage ARP (Address Resolution) in computer networks. Protocol) cached commands. The ARP protocol is used to map IP addresses to physical MAC addresses for communication on a LAN. The following is a detailed explanation of the arp command:

1. arp -a: Display the local ARP cache table. This command will display the resolved IP addresses and corresponding MAC addresses stored in your computer. This is useful for viewing network connections between your computer and other devices.

2. arp -d : Delete the ARP cache entry for the specified IP address. Use this command to clear the ARP cache of the specified IP address. You can use this command when you need to update the MAC address of a device.

3、arp -s :Add static ARP cache entry. Use this command to manually add a static ARP cache entry to map the specified IP address to the corresponding MAC address. This may be used in some specific network environments.

4、arp -d: Clear the local ARP cache table. Use this command to clear all ARP cache entries stored in your computer. When you encounter network connection problems, you can try clearing the ARP cache to solve the problem.

5. arp -g: Same as arp -a, displays the local ARP cache table. In some operating systems, you can use the arp -g command to display the ARP cache table.

6. arp -n: Displays the local ARP cache table, but does not resolve the host name. Using this command displays the ARP cache table but does not attempt to resolve the hostname. This may be more efficient in some cases.

The ARP command is very useful for network troubleshooting and network management. By viewing the ARP cache table, you can understand the connections between your computer and other devices, and clear or update the ARP cache to solve network problems. Please note that the specific usage and options of the ARP command may vary in different operating systems.

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