I know that the Windows XP DHCP client didn't respect DHCP Option 35 (ARP cache timeout). Do any of the newer implementations of IP/DHCP stacks (Vista/7/2k8) accept ARP cache timeout values passed to them via DHCP server? Thanks!

Hi, Thanks for posting here. I think it is same as early version , we can only modify basereachable value for NIC by using NETSH utility to achieve the goal: Description of Address Resolution Protocol (ARP) caching behavior in Windows Vista TCP/IP implementations http://support.microsoft.com/kb/949589 Thanks. Tiger LiPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.