How can I increase the time entries are kept in the ARP cache?
John Savill
March 4, 1999
1 Min Read
A. A. The default 2 minutes can be changed by performing the following:
Start the registry editor (regedit.exe)
Move to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters
From the Edit menu select New - DWord value and enter a name of ArpCacheLife, click OK
Double click the new value and set to the new value in seconds and click OK
Close the registry editor
Reboot
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