Question : Windows default arp cache timeout?

What is the default timeout for Windows arp cache?
If it varies by version then please post the values for 9x and NT, 2Kx and XP.

Thank you,
Ryan

Answer : Windows default arp cache timeout?

Just so you understand the process, this from MS..   http://www.microsoft.com/windows2000/en/datacenter/help/default.asp?url=/windows2000/en/datacenter/help/sag_tcpip_und_arp.htm

To minimize the number of broadcasts, ARP maintains a cache of IP address-to-media access control address mappings for future use. The ARP cache can contain both dynamic and static entries. Dynamic entries are added and removed automatically over time. Static entries remain in the cache until the computer is restarted.

Each dynamic ARP cache entry has a potential lifetime of 10 minutes. New entries added to the cache are timestamped. If an entry is not reused within 2 minutes of being added, it expires and is removed from the ARP cache. If an entry is used, it receives two more minutes of lifetime. If an entry keeps getting used, it receives an additional two minutes of lifetime up to a maximum lifetime of 10 minutes.

You can view the ARP cache by using the arp command. To view the ARP cache on a computer running Windows 2000, type arp -a at a Windows 2000 command prompt. To view arp command-line options, type arp /? at a command prompt.