ARP Windows command
The Windows arp command allows users to view and modify the Address Resolution Protocol (ARP) cache. This command-line tool can be used to display the contents of the ARP cache, add static ARP entries, and remove ARP cache entries. By managing the ARP cache, users can resolve networking issues and troubleshoot connectivity problems on their Windows systems. ARP is essential for mapping IP addresses to MAC addresses in a local network, and the arp command provides a simple way to interact with this vital networking protocol.
ARP Syntax:
Section titled “ARP Syntax:”arp [-a] [-g [GatewayIP]] [-d IP] [-s IP MAC] [InterfaceIndex]Windows ARP Options:
Section titled “Windows ARP Options:”| Option | Description |
|---|---|
| -a | Display current ARP entries. |
| -g | Display ARP entries on the specified gateway. |
| -d | Delete the ARP entry for the specified IP address. |
| -s | Add a static ARP entry for the specified IP address and MAC address. |
ARP Parameters:
Section titled “ARP Parameters:”| Parameter | Description |
|---|---|
| IP | Specifies the Internet Protocol (IP) address. |
| MAC | Specifies the Media Access Control (MAC) address. |
| InterfaceIndex | Specifies the interface index. |
How to use arp command:
Section titled “How to use arp command:”Display ARP Table
Section titled “Display ARP Table”arp -aDisplays the current ARP table on the system.
Add a Static ARP Entry
Section titled “Add a Static ARP Entry”arp -s 192.168.1.100 00-11-22-33-44-55Adds a static ARP entry mapping IP address “192.168.1.100” to MAC address “00-11-22-33-44-55”.
Delete ARP Entry
Section titled “Delete ARP Entry”arp -d 192.168.1.100Deletes the ARP entry corresponding to the IP address “192.168.1.100”.
Clear ARP Cache
Section titled “Clear ARP Cache”arp -d *Clears the entire ARP cache by deleting all entries.
Display ARP Cache for a Specific Interface
Section titled “Display ARP Cache for a Specific Interface”arp -a -N 192.168.1.1Displays the ARP cache for the specific interface with the IP address “192.168.1.1”.
Query Specific IP Address
Section titled “Query Specific IP Address”arp -a 192.168.1.100Queries and displays the ARP entry for the specific IP address “192.168.1.100”.
Enable Dynamic ARP Cache Timeout
Section titled “Enable Dynamic ARP Cache Timeout”arp -s 192.168.1.100 00-11-22-33-44-55 tempAdds a dynamic ARP entry with a timeout for the IP address “192.168.1.100”.
Modify Existing ARP Entry
Section titled “Modify Existing ARP Entry”arp -s 192.168.1.100 00-11-22-33-44-55 1Modifies the MAC address associated with the IP address “192.168.1.100” in the ARP cache.
How do I use arp in CMD?
Section titled “How do I use arp in CMD?”To use the arp command in CMD, execute the following command:
arp -aWhat does the arp -a command do in CMD?
Section titled “What does the arp -a command do in CMD?”When you run the following command in CMD:
arp -aIt displays the ARP cache of all network interfaces on the local computer.
How can I clear the ARP cache using arp in CMD?
Section titled “How can I clear the ARP cache using arp in CMD?”To clear the ARP cache using the arp command in CMD, use the following command:
arp -dHow do I add a static ARP entry in CMD?
Section titled “How do I add a static ARP entry in CMD?”To add a static ARP entry in CMD using the arp command, execute the following command:
arp -s <IPAddress> <MACAddress>Applications of the arp Command
Section titled “Applications of the arp Command”- Display the ARP cache:
arp -a - Add an ARP entry for a specific IP address:
arp -s <IPAddress> <MACAddress> - Delete an ARP entry:
arp -d <IPAddress>