Monitor Ethernet Activity
Arpwatch tool monitors ethernet or fddi activity and maintain a database of ethernet/ip address pairings. It also reports certain changes via email. Arpwatch uses libpcap, a system-independent interface for user-level packet capture. Before building arpwatch, you must first retrieve and build libpcap. Once libpcap is built (either install it or make sure arpwatch and libpcap share the same parent directory), you can build arpwatch using
the procedure in the INSTALL file.
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