OIT has introduced the Hardware Address Last in IP ARP Data (HALIAD) facility. The facility allows you to search recent IP ARP data collected by OIT.
Specifically, you may search for a hardware address in that data, to learn the most-recent date on which that hardware address appeared.
To search for a hardware address in HALIAD, visit the Hardware Address Last in IP ARP Data (HALIAD) Search page. Access is restricted to Web clients in the princeton.edu DNS domain, and also requires you to login using an OIT netid and password.
OIT provides HALIAD in response to requests from technical support staff who wish to have access to this data. We do not expect the facility to be used by most customers; its intended audience is technical support staff who understand what an IP ARP cache is.
For detailed information about the facility, see Hardware Address Last in IP ARP Data (HALIAD).