How to clear ARP Cache in windows Vista/XP/2003/2000

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The Address Resolution Protocol (ARP) is very crucial for TCP/IP network communication. If you begin to notice network connectivity problems such as particular web pages not loading or not being able to ping certain IP addresses then clearing your ARP cache is a good place to start.The TCP/IP ARP Command component provides the functionality to add, delete, or display the IP address for Media Access Control (MAC) address translation.

To flush/Delete the ARP cache in windows Vista/XP/2003/2000 follow this procedure

Click on Start—>Run—> type the following command click ok

netsh interface ip delete arpcache

Dynamic ARP cache entries update persist for 2-20 minutes depending on the system.

Windows 2003 Server = 10 minutes

Windows 2000 professional/Server = 10 minutes

Windows XP = 2 minutes

Solaris = 5 minutes

Delete IP address using arp command

arp -d <ip address>

Example

arp -d 10.1.1.2

Display arp table

arp -a

Add static entry to ARP table

arp -s <ip address> <mac address>

Example

arp -s 157.55.85.212 00-aa-00-62-c6-09

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Topics: Windows 2000, Windows Vista, Windows XP, Windows-Server-2003

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Comments

Windows Server 2008 x64 denies to add static entry for the primary Gateway. Even after removing the dynamic entry, there is no success in arp -s gw_IP gw_MAC interface_IP.
With Server 2003 I didn’t have any problems though.

Comment by Teodor on September 22, 2008 @ 10:39 am

I got connected my vista business pc with ninernet & it was updated some thing. then the system drive filled by something and displays as low memory on that drive. it is continuously filling and increasing the used capasity as unbelivable.

Comment by Pushpi on January 7, 2009 @ 7:34 am

Thanks for Help 100 % helpful for me

thanks & regards,
veeramani nk

Comment by veeramani nk on May 21, 2009 @ 2:36 am

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