how often arp cache is refreshed (cleared) automatically in win 7 and win2008 or win2008R2 ?

Question

_{Sunday, October 23, 2011 11:22 AM}

hi all

i couldn't find any obvious document on internet about how long is arp cache in win 7 and win 2008 or 2008 R2 ?

i mean how long cached entries will remain in arp cache and after that system authomatically removes them from cache ? ( only about win 7 and 2008 or 2008 R )

thanks in advance

All replies (4)

_{Monday, October 24, 2011 7:22 AM ✅Answered}

Hello John

Check this;

http://support.microsoft.com/kb/949589

Br,

Marjan

_{Monday, October 24, 2011 7:33 AM ✅Answered}

Hi,

ARP caching behavior has been changed in Windows Vista and later version of OS (Win 7, Win2008 & 2008R2). In the new TCP/IP stack implementation, hosts create the neighbor cache entries when there is no matching entry in the neighbor cache. If an entry is not used, and it stays in cache longer than its “Reachable Time” value, the entry changes to the “Stale” state and removed from cache.

In order to see the current “Reachable Time” value, please follow the steps mentioned in the below link:

Title: Description of Address Resolution Protocol (ARP) caching behavior in Windows Vista TCP/IP implementations

Link: http://support.microsoft.com/kb/949589

Best Regards,

Aiden

_{Tuesday, October 25, 2011 9:40 AM}

Hello John

 

Check this;

http://support.microsoft.com/kb/949589

 

Br,

Marjan

thank you very much marjan

_{Tuesday, October 25, 2011 9:40 AM}

Hi,

 

ARP caching behavior has been changed in Windows Vista and later version of OS (Win 7, Win2008 & 2008R2). In the new TCP/IP stack implementation, hosts create the neighbor cache entries when there is no matching entry in the neighbor cache. If an entry is not used, and it stays in cache longer than its “Reachable Time” value, the entry changes to the “Stale” state and removed from cache.

 

In order to see the current “Reachable Time” value, please follow the steps mentioned in the below link:

Title: Description of Address Resolution Protocol (ARP) caching behavior in Windows Vista TCP/IP implementations

Link: http://support.microsoft.com/kb/949589

 

 

Best Regards,

Aiden

thank you very much